ADM Output

Buildings Department Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers

ADM-1

Practice Notes in Force The Building Authority (BA) issues practice notes to authorized persons (AP), registered structural engineers (RSE) and registered geotechnical engineers (RGE) from time to time to promulgate how he applies and enforces the provisions of the Buildings Ordinance (BO) and its subsidiary regulations as well as other administrative and advisory matters in the administration of the BO. Categorization of PNAP 2. Practice notes, named as ‘Practice Note for Authorized Persons and Registered Structural Engineers’ and abbreviated as ‘PNAP’ are issued since 1974 with a serial number according to the chronological order of publication and without categorization on the nature of the content thereof. In response to request from the practitioners with a view to facilitating easy reference by all concerned, PNAPs are now categorized into three parts according to the nature of their contents with new serial numbers as follows, with effect from August 2009:

(a) Part A – Administration

It consists of PNAPs (new serial numbers prefixed “ADM”), mainly relating to the general administration of the Buildings Department (BD) and other administrative matters relating to plan approval, issue of consent and occupation permits and related matters.

(b) Part B – Application of the BO and Regulations

It consists of PNAPs (new serial numbers prefixed “APP”) explaining how the BA applies and enforces the provisions of the BO and its regulations and other Ordinances administered by the BA/Director of Buildings (DB), as well as those Ordinances not administered by the BA/DB but relating to plan approval and building control under the jurisdiction of the BD.

(c) Part C – Advisory

It consists of PNAPs (new serial numbers prefixed “ADV”) of general advisory nature or those intending for promotion of good practices to the practitioners in the building industry.

3. With the first issue of this PNAP ADM-1 in August 2009, all extant PNAPs are re-issued with the above categorization and new serial numbers, but their contents remain unchanged. It should be noted that the PNAPs grouped under one part may contain information the nature of which is related to the other parts. The BA will endeavour to update the PNAPs when opportunity arises to improve the contents as far as practicable.

/Renaming of PNAP…

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Renaming of PNAP 4. Since the introduction of RGE under the Buildings (Amendment) Ordinance 2004, PNAPs are also circulated to RGE in addition to AP and RSE. With the re-issue of all extant PNAPs with the new categorization and serial numbers, opportunity is taken to rename them as Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers. The abbreviation is, however, maintained as “PNAP” for simplicity sake.

Chinese Version 5. We have also taken this opportunity of re-issue of all extant PNAPs to publish a Chinese version of the PNAPs. All new and revised PNAPs to be issued in future will be in bilingual format. Practice Notes in Force 6. The list of PNAPs in force together with the new categorization is listed at Appendix A. Such list will be kept updated on BD’s website (www.bd.gov.hk/). 7. To afford instant updating of information and for environmentally friendliness, all PNAPs will be disseminated via BD’s website and issue of hardcopies thereof will cease forthwith. In this connection, we have revamped the webpage of PNAPs adding more features which aim to enhance the search function and navigation. Premised on these built-in new functions, the indexes indicated in the footnote of the extant PNAPs will become redundant and will be deleted as and when the PNAPs are revised in future. 8. PNAPs have proven to be useful platforms in our dissemination of information to the practitioners. I hope you will find the aforesaid new arrangements for issue of PNAPs both user and environmentally friendly. With your support, we can help contribute towards a more sustainable society.

(AU Choi-kai) Building Authority

Ref. : BD GP/BOP/2 BD GR/1-125/1/0 This PNAP is previously known as PNAP 1 First issue : November 1983 Last revision : November 2002 This revision : August 2009 (AD/Sup) (General Revision)

http://www.bd.gov.hk

PNAP ADM-1 Appendix A

ADMINISTRATION

New Reference Title Date of

Current Issue Previous

Reference PNAP ADM- 1 Practice Notes in Force Aug 09 PNAP 1

PNAP ADM-2 Centralized Processing of Building Plans Feb 09 PNAP 30 PNAP ADM-3 Emergency Situations - Telephone Numbers for

Use Outside Office Hours Aug 07 PNAP 34

PNAP ADM-4 Priority Mar 05 PNAP 40 PNAP ADM-5 Submissions to the Buildings Department Jun 06 PNAP 58 PNAP ADM-6 Computer Programs for Use in Structural and

Geotechnical Design Dec 05 PNAP 79

PNAP ADM-7 Geotechnical Information Unit May 95 PNAP 104 PNAP ADM-8 Structural Design Information Sep 02 PNAP 121 PNAP ADM-9 Colouring of Plans Aug 06 PNAP 127 PNAP ADM-10 Imaging Standards for Plans Dec 00 PNAP 135 PNAP ADM-11 Change of Address Dec 05 PNAP 152 PNAP ADM-12 Submission of Record Plans for Alteration and

Addition Works - Building (Administration) Regulation 46

Mar 98 PNAP 154

PNAP ADM-13 Monitoring for Site Safety and Quality Feb 06 PNAP 186 PNAP ADM-14 Minor Amendments to Plans and Specified

Forms Apr 02 PNAP 190

PNAP ADM-15 Submission of Site Formation Proposals Dec 05 PNAP 200 PNAP ADM-16 Ground Investigation Works in Scheduled Areas

- Approval and Consent Feb 06 PNAP 225

PNAP ADM-17 Submission of Documents in Electronic Format Mar 08 PNAP 240 PNAP ADM-18 Site Auditing for Building Works Feb 06 PNAP 254 PNAP ADM-19 Re-engineering the Building Approval Process Dec 08 PNAP 272 PNAP ADM-20 Central Data Bank (CDB) Jan 05 PNAP 292

List of Practice Notes for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers and the New Categorization


APPLICATION OF THE BUILDINGS ORDINANCE & REGULATIONS



Reference

PNAP APP-1 Landlord and Tenant (Consolidation) Ordinance, Cap. 7, Demolished Buildings (Re-development of Sites) Ordinance, Cap. 337

Mar 94 PNAP 11

PNAP APP-2 Calculation of Gross Floor Area and Non-accountable Gross Floor Area - Building (Planning) Regulation 23(3)(a) and (b)

Apr 07 PNAP 13

PNAP APP-3 Nomination of an Authorized Person, Registered Structural Engineer or Registered Geotechnical Engineer to act in stead

Dec 05 PNAP 14

PNAP APP-4 Water Supply and Wells Dec 05 PNAP 17

PNAP APP-5 Height of Storeys - Building (Planning) Regulations 3(3) and 24

May 94 PNAP 27

PNAP APP-6 Shops and Department Stores - Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulation 5

Jan 90 PNAP 41

PNAP APP-7 Application for Registration as Authorized Persons, Registered Structural Engineers or Registered Geotechnical Engineers

Dec 04 PNAP 43

PNAP APP-8 Chimneys and Flues Jul 94 PNAP 45

PNAP APP-9 Country Parks Ordinance, Cap. 208 - Buildings Ordinance section 16(1)(d)

Jan 90 PNAP 47

PNAP APP-10 Oil Storage Installations - Building (Oil Storage Installations) Regulations

Aug 07 PNAP 48

PNAP APP-11 Street Improvement Schemes - Submission of Building Plans in respect of Lots affected thereby

Jan 90 PNAP 49

PNAP APP-12 Prestressed Ground Anchors in Building Works Jan 99 PNAP 50

PNAP APP-13

Submission of Certificate of Completion of Building Works Application for Occupation Permit (OP) and Submission of Record Plans and Information

Nov 07 PNAP 53

PNAP APP-14 Cinemas in Non-domestic Buildings or Composite Buildings

Sep 05 PNAP 54




Reference

PNAP APP-15 Site Formation - Temporary or Permanent Filling Work

Dec 05 PNAP 55

PNAP APP-16 Cladding Works Jun 06 PNAP 59

PNAP APP-17 Rock Faces - Building (Planning) Regulations 27 and 47

Dec 96 PNAP 61

PNAP APP-18 Pile Foundations Feb 06 PNAP 66

PNAP APP-19 Projections in relation to Site Coverage and Plot Ratio - Building (Planning) Regulations 20 and 21

May 04 PNAP 68

PNAP APP-20 Building Proposals affected by Street Widening - Building (Planning) Regulation 22(2)

Dec 08 PNAP 70

PNAP APP-21 Demolition Works - Measures for Public Safety Dec 05 PNAP 71

PNAP APP-22 Dewatering in Foundation and Basement Excavation Works

May 94 PNAP 74

PNAP APP-23

Hoardings, Covered Walkways and Gantries (including Temporary Access for Construction Traffic) - Building (Planning) Regulations Part IX

Feb 09 PNAP 75

PNAP APP-24

Mass Transit Railway Protection - Railways Ordinance - Mass Transit Railway (Land Resumption and Related Provisions) Ordinance, Buildings Ordinance Scheduled Area No. 3

Dec 05 PNAP 77

PNAP APP-25 Requirements for a Geotechnical Assessment at General Building Plan Stage - Building (Administration) Regulation 8(1)(ba)

Oct 91 PNAP 78

PNAP APP-26 Pouring of Concrete against Walls of Adjoining Buildings

May 94 PNAP 81

PNAP APP-27 Gas Water Heaters - Building (Planning) Regulation 35A

Dec 98 PNAP 82

PNAP APP-28

Requirements for Qualified Supervision of Site Formation Works, Excavation Works, Foundation Works on Sloping Ground, and Ground Investigation Works in the Scheduled Areas - Buildings Ordinance section 17

Dec 97 PNAP 83




Reference PNAP APP-29 Lift & Escalator Installations Mar 07 PNAP 84

PNAP APP-30

Development in Mid-levels Scheduled Area - Buildings Ordinance section 2(1), Building (Administration) Regulation 8(1)(bb)(vii) and 8(1)(1)

Dec 05 PNAP 85

PNAP APP-31 Permanent Water Supply to Fire Service Installations - Buildings Ordinance section 21(6)(d)

May 94 PNAP 87

PNAP APP-32 Hong Kong Airport (Control of Obstructions) Ordinance, Cap 301

Jul 98 PNAP 88

PNAP APP-33 Pulverised Fuel Ash in Concrete Sep 01 PNAP 90

PNAP APP-34 Structural Design of Bridges and Associated Highway Structures

May 95 PNAP 92

PNAP APP-35 Refuse Storage and Collection - Building (Refuse Storage and Material Recovery Chambers and Refuse Chutes) Regulations

Aug 08 PNAP 98

PNAP APP-36

Industrial Buildings - Occupancy and Related Matters - Determinations by the Commissioner for Labour - Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulation 5(5)

Feb 93 PNAP 100

PNAP APP-37 Curtain Wall, Window and Window Wall Systems

Jan 09 PNAP 106

PNAP APP-38 Bridges over Streets - Buildings Ordinance section 31(1)

Sep 94 PNAP 107

PNAP APP-39 Inspection and Copying of Plans and Documents

Jan 09 PNAP 110

PNAP APP-40 Hotel Development Aug 04 PNAP 111

PNAP APP-41 Buildings to be Planned for Use by Persons with a Disability - Building (Planning) Regulation 72

Nov 08 PNAP 112

PNAP APP-42 Amenity Features Feb 03 PNAP 116

PNAP APP-43 Licensing of Child Care Centres, Kindergartens and Restaurants

Aug 96 PNAP 117




Reference

PNAP APP-44 Streets in relation to Site Area - Building (Planning) Regulation 23(2)(a)

Jan 90 PNAP 118

PNAP APP-45 Testing of Reinforcement for Concrete Mar 96 PNAP 122

PNAP APP-46 Pollution from Industrial Buildings - Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulation 90

Mar 92 PNAP 124

PNAP APP-47 Unauthorized Alterations and Additions - Buildings Ordinance section 14

Jan 96 PNAP 125

PNAP APP-48

Requirements for Qualified Supervision of Structural Works, Foundation Works and Excavation Works - Buildings Ordinance section 17

Dec 05 PNAP 131

PNAP APP-49 Site Investigation and Ground Investigation Feb 06 PNAP 132

PNAP APP-50 Temporary Buildings - Building (Planning) Regulations 50-52

Mar 94 PNAP 133

PNAP APP-51 Monitoring and Maintenance of Horizontal Drains

Nov 90 PNAP 137

PNAP APP-52

Supply of Plans to Registered General Building Contractors and Registered Specialist Contractors - Building (Administration) Regulation 36

Aug 01 PNAP 139

PNAP APP-53 Building (Construction) Regulations Feb 07 PNAP 140

PNAP APP-54 Retaining Walls - Building (Construction) Regulations 1992 - Part XIII

Apr 98 PNAP 142

PNAP APP-55 Procedure for Payment of Fees on Submission of Plans Building (Administration) Regulation 42

Aug 02 PNAP 143

PNAP APP-56 Exemption Criteria for Site Formation Works associated with Exempted Building Works in the New Territories

Feb 97 PNAP 147

PNAP APP-57 Requirements for an Excavation and Lateral Support Plan - Building (Administration) Regulation 8(1)(bc)

Dec 05 PNAP 148




Reference

PNAP APP-58 Testing of Drainage Works - Building (Standards of Sanitary Fitments, Plumbing, Drainage Works & Latrines) Regulation 73

Apr 93 PNAP 157

PNAP APP-59 BAN on Hand-dug Caissons Feb 95 PNAP 158

PNAP APP-60 Buildings Ordinance, Cap 123 - Specified Forms

Nov 02 (Appendix -

Dec 05)

PNAP 159

PNAP APP- 61 Development in Area Numbers 2 & 4 of the Scheduled Areas

Dec 05 PNAP 161

PNAP APP-62

Sewage Tunnel Works - Sewage Tunnels (Statutory Easements) Ordinance Section 17A and Scheduled Area Number 5, Buildings Ordinance, Cap 123

May 95 PNAP 165

PNAP APP-63 GEOGUIDE 1 (Second Edition) - Guide to Retaining Wall Design

Jun 95 PNAP 166

PNAP APP-64 Methods for Testing Hong Kong Soils (GEOSPEC 3 - Model Specification for Soil Testing)

Dec 05 PNAP 167

PNAP APP-65 Natural Lighting to Staircases - Building (Planning) Regulation 40

Mar 03 PNAP 169

PNAP APP-66 Metal Refuse Chutes at Construction Sites Aug 94 PNAP 170

PNAP APP-67 Energy Efficiency of Buildings - Building (Energy Efficiency) Regulation

Jun 00 PNAP 172

PNAP APP-68 Design and Construction of Cantilevered Reinforced Concrete Structures

Nov 05 PNAP 173

PNAP APP-69 Conservation of Historic Buildings May 09 PNAP 175

PNAP APP-70 Use of Plastic Sheet to Cover Scaffolding Outside Buildings

May 95 PNAP 176

PNAP APP-71 Underground Cavern Development Apr 95 PNAP 177 PNAP APP-72 Control of Blasting Apr 07 PNAP 178 PNAP APP-73 Service Lanes Nov 95 PNAP 179

PNAP APP-74 Alkali-Aggregate Reaction in Reinforced Concrete Structures

Apr 95 PNAP 180




Reference

PNAP APP-75 Building (Planning) Regulations 41A, 41B and 41C - Means of Access for Firefighting and Rescue in Buildings

May 95 PNAP 182

PNAP APP-76 Keeping Buried Services out of Slopes Jun 95 PNAP 183

PNAP APP-77 Code of Practice for the Structural Use of Concrete 1987

May 03 PNAP 187

PNAP APP-78 Occupation of New Buildings - Buildings Ordinance section 21

Aug 96 PNAP 188

PNAP APP-79 GEOGUIDE 5 - Guide to Slope Maintenance Apr 99 PNAP 189

PNAP APP-80 Code of Practice for Fire Resisting Construction 1996

Apr 96 PNAP 192

PNAP APP-81 Places of Public Entertainment (Amendment) Regulation 1996 and Associated Legislative Amendments

Jun 96 PNAP 194

PNAP APP-82 Code of Practice for the Provision of Means of Escape in Case of Fire 1996

Jun 96 PNAP 195

PNAP APP-83 Amendments and Clarification to Code of Practice for Fire Resisting Construction 1996

Aug 99 PNAP 199

PNAP APP-84 Access Facilities for Telecommunications and Broadcasting Services

Jun 06 PNAP 201

PNAP APP-85 Application of the Revised Fire Safety Codes Oct 96 PNAP 202 PNAP APP-86 Non-loadbearing Partition Walls Oct 96 PNAP 203 PNAP APP-87 Guide to Fire Engineering Approach Mar 98 PNAP 204

PNAP APP-88 Code of Practice on Inspection and Maintenance of Water Carrying Services Affecting Slopes

Nov 96 PNAP 205

PNAP APP-89 Provision of Better Lift Service May 06 PNAP 207

PNAP APP-90 Buildings Ordinance section 18(6) - Authority to Enter Buildings

Jun 97 PNAP 208

PNAP APP-91 Maintenance and Replacement Works of Lift Installations

Jul 97 PNAP 209

PNAP APP-92 Amendments and Clarification to Code of Practice for the Provision of Means of Escape in Case of Fire 1996

Aug 97 PNAP 210

PNAP APP-93 Planning and Design of Drainage Works May 04 PNAP 211

PNAP APP-94 Fire Safety (Commercial Premises) Ordinance, Cap 502

Oct 07 PNAP 212




Reference

PNAP APP-95 Sale Offices and Show Flats on Construction Sites

Aug 97 PNAP 213

PNAP APP-96 Contractors Registration Jun 07 PNAP 214

PNAP APP-97 Consent Procedures for Building Works and Street Works

Dec 05 PNAP 215

PNAP APP-98 Lighting and Ventilation for Bathrooms and Lavatories in Domestic Buildings

Mar 00 PNAP 219

PNAP APP-99 Flushing Volume for Flushing Cisterns May 00 PNAP 220

PNAP APP-100 Structural Plans of Glass Reinforced Polyester (GRP) Water Tanks

Mar 98 PNAP 222

PNAP APP-101 Podium Height Restriction under Building (Planning) Regulation 20(3)

Apr 98 PNAP 223

PNAP APP-102 Superstructure Works Measures for Public Safety

Jul 05 PNAP 224

PNAP APP-103 Structures On Grade on Newly Reclaimed Land Apr 99 PNAP 227 PNAP APP-104 Exclusion of Floor Areas for Recreational Use Sep 00 PNAP 229 PNAP APP-105 Water Seepage Mar 05 PNAP 230

PNAP APP-106 Fire Resisting Construction - Kitchens in Restaurants

Oct 98 PNAP 231

PNAP APP-107 Precautionary Measures for Construction Sites Dec 98 PNAP 232

PNAP APP-108 Dedication of Land / Area for Use as Public Passage

Jun 03 PNAP 233

PNAP APP-109 Geotechnical Manual for Slopes - Guidance on Interpretation and Updating

Jun 99 PNAP 234

PNAP APP-110 Protective Barriers Sep 00 PNAP 235

PNAP APP-111 Design of Car Parks and Loading / Unloading Facilities

Feb 09 PNAP 236

PNAP APP-112 Disposal of Condensation from Air-Conditioning Units

Mar 00 PNAP 238

PNAP APP-113 Lighting and Ventilation of Rooms Used for Habitation or as an Office or Kitchen

Sep 01 PNAP 241

PNAP APP-114 Waste Minimization - Provision of Fitments and Fittings in New Buildings

Dec 00 PNAP 245

PNAP APP-115 Performance Review - Item 6(g)(ii) in Column B, Section 17(1) of the Buildings Ordinance

Dec 05 PNAP 246




Reference PNAP APP-116 Aluminium Windows Mar 06 PNAP 248

PNAP APP-117 Structural Requirements for Alteration and Addition Works in Existing Buildings

Dec 00 PNAP 249

PNAP APP-118 Testing of Building Materials Oct 01 PNAP 251

PNAP APP-119 Stair-well and Open Wells In School and Other Buildings Used by Youngsters

May 01 PNAP 253

PNAP APP-120 Concrete Batching Plant Mar 02 PNAP 255

PNAP APP-121 Amendment to Code of Practice for Provision of Means of Escape in Case of Fire 1996 (MOE Code)

Jun 01 PNAP 257

PNAP APP-122 Provision of Sky Garden in Refuge Floor Dec 01 PNAP 258

PNAP APP-123 Alternative Designs – Paragraph 12.3 of the Code of Practice for Fire Resistance Construction 1996 (FRC Code)

Oct 01 PNAP 260

PNAP APP-124 Streets for Site Classification Nov 05 PNAP 263

PNAP APP-125 Level Difference for Floor Adjoining External Ground Level or Flat Roof

Jan 05 PNAP 266

PNAP APP-126 Plans for Signboards Apr 09 PNAP 269 PNAP APP-127 Contractor’s Sheds Oct 07 PNAP 273 PNAP APP-128 Geotechnical Design Information Dec 05 PNAP 274 PNAP APP-129 Use of Recycled Aggregates in Concrete Feb 03 PNAP 275

PNAP APP-130 Lighting and Ventilation Requirements - Performance-based Approach

Jun 05 PNAP 278

PNAP APP-131 Kowloon-Canton Railway Corporation Railway Protection - Railways Ordinance Buildings Ordinance Scheduled Area No.3

Dec 05 PNAP 279

PNAP APP-132 Site Coverage and Open Space Provision Jan 04 PNAP 280 PNAP APP-133 Cast Iron Pipes for Drainage Works Nov 03 PNAP 282

PNAP APP-134 Development in the Designated Area of Northshore Lantau

Feb 06 PNAP 283

PNAP APP-135 Quality Supervision of Soil Nailing Works Feb 06 PNAP 284

PNAP APP-136 Building (Planning) Regulation 41D - Emergency Vehicular Access

Jul 06 PNAP 288

PNAP APP-137 Ground-borne Vibrations Arising from Pile Driving and Similar Operations

May 04 PNAP 289




Reference

PNAP APP-138 Appointment of Authorised Signatory to Act for Registered Contractor and Temporary absence of Authorised Signatories

May 04 PNAP 290

PNAP APP-139 Code of Practice on Wind Effects in Hong Kong 2004

Dec 04 PNAP 291

PNAP APP-140 Registration of Authorized Persons and Registered Structural Engineers as Registered Geotechnical Engineers

Dec 04 PNAP 293

PNAP APP-141 Division of Responsibilities between Authorized Person, Registered Structural Engineer and Registered Geotechnical Engineer

Feb 09 PNAP 294

PNAP APP-142 Code of Practice for Structural Use of Concrete 2004

Jun 07 PNAP 296

PNAP APP-143 Quality Control and Supervision of Precast Concrete Construction

Aug 06 PNAP 299

PNAP APP-144 Design and Construction of Run-in and Run-out on Public Road

Sep 06 PNAP 300

PNAP APP-145 Fire Safety (Buildings) Ordinance Cap. 572 Oct 07 PNAP 302 PNAP APP-146 Large Metal Gates Dec 08 PNAP 304


ADVISORY



Reference PNAP ADV-1 Asbestos Jan 96 PNAP 114

PNAP ADV-2 Legislation and Publications Affecting the Building Industry

Dec 05 (Appendix A -

Aug 07)

PNAP 115

PNAP ADV-3 Standardization of Floor Numbering Jul 98 PNAP 128 PNAP ADV-4 Control of Environmental Nuisance from

Construction Sites Aug 97 PNAP 144

PNAP ADV-5 Tropical Hardwood Timber Jul 92 PNAP 153 PNAP ADV-6 Lightning Protection for Buildings Dec 06 PNAP 156 PNAP ADV-7 Gas Supply Installations Feb 94 PNAP 164 PNAP ADV-8 Registration of Slopes and Retaining Walls Feb 02 PNAP 168 PNAP ADV-9 Submission of Development Progress Sep 98 PNAP 174 PNAP ADV-10 Temporary Wall-Supported Platforms inside

Lift Shafts Oct 95 PNAP 181

PNAP ADV-11 Suspended Working Platforms Oct 95 PNAP 185 PNAP ADV-12 Display of Site Information Jan 05 PNAP 191

PNAP ADV-13 Application for Excavation Permit for Works on Public Road - Circulation of Proposal to Utility Undertakers

Feb 09 PNAP 197

PNAP ADV-14 Facilities for External Inspection and Maintenance of Buildings

Feb 04 PNAP 218

PNAP ADV-15 Fixing of Reinforcement for Concrete Works Jul 03 PNAP 221 PNAP ADV-16 Street Name and Building Number May 07 PNAP 226 PNAP ADV-17 Noise Annoyance Prevention - Design of Pump

Room and Ventilation System Sep 98 PNAP 228

PNAP ADV-18 Corruption Prevention Jul 99 PNAP 237 PNAP ADV-19 Construction and Demolition Waste Jun 00 PNAP 243 PNAP ADV-20 Planning Application for Minor Amendments

to Approved Development Proposals Apr 01 PNAP 250

PNAP ADV-21 Management Framework for Disposal of Dredged / Excavated Sediment

Apr 07 PNAP 252

PNAP ADV-22 Felling or Transplanting of Trees Nov 02 PNAP 267




Reference PNAP ADV-23 Improvement of Visual Appearance and

Landscape Treatment for Man-made Slopes and Retaining Walls

May 04 PNAP 270

PNAP ADV-24 Floor Drains in Kitchens and Bathrooms Jun 03 PNAP 277 PNAP ADV-25 Extractor Fans in Bathrooms and Lavatories in

Domestic Buildings Mar 04 PNAP 285

PNAP ADV-26 Ventilation of Common Corridors and Lift Lobbies in Buildings

Jan 04 PNAP 287

PNAP ADV-27 Protection of Natural Streams / Rivers from Adverse Impacts arising from Construction Works

May 05 PNAP 295

PNAP ADV-28 Provision of Sanitary Fitments in Offices, Shopping Arcades and Department Stores, Places of Public Entertainment and Cinemas

May 05 PNAP 297

PNAP ADV-29 Construction Site Safety - Pay for Safety Scheme

Mar 06 PNAP 298

PNAP ADV-30 Provision of Mechanical Ventilation under Building (Planning) Regulation 34

Jan 07 PNAP 301

PNAP ADV-31 Building External Finishes - Wet-fixed Tiles Jul 08 PNAP 303 PNAP ADV-32 Provision of Babycare Rooms in Commercial

Buildings Feb 09 PNAP 305

This list will not be updated. Please visit BD website (www.bd.gov.hk) for the most up-to-date list and PNAPs. (Rev. 8/2009)

http://www.bd.gov.hk


ADM-2

Centralized Processing of Building Plans

Purpose The purpose of the centralized processing system for building plans is to ensure that all interested government departments are consulted and that their comments on private development proposals are collated by the Building Authority (BA) within time limits allowed for processing building plans. It also serves the purpose of making the Buildings Department (BD) a focal point where issues arising from private building development precipitate. This practice note announces additional measures and guidelines to streamline and expedite the processing of building plans. Referral of plans 2. The efficient operation of the system depends to a great extent upon the co-operation of authorized persons (APs), registered structural engineers (RSEs) and registered geotechnical engineers (RGEs) and that of the government departments to be consulted. Failure to submit the requisite number of sets of plans will delay the referral process and may affect the timely receipt of comments by BD and their subsequent transmission to APs, RSEs and RGEs, as appropriate. To avoid such delays, RSEs and RGEs are requested to make reference to Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers (PNAP) ADM-8 and APs are requested to double-check the number of sets of plans and the documents required for submission by completing Appendix A prior to submission of general building plans. 3. Procedures for dealing with fire service installation proposals and lease matters are contained in Appendices B and C respectively. Resolution of issues arising from referral of plans 4. Available comments of other government departments are incorporated in approval or disapproval letters. Adverse comments falling within the purview of the Buildings Ordinance (BO) and constituting a fundamental issue in the context of PNAP ADM-19 are included as disapproval items. All other comments are simply conveyed as such in separate paragraphs for the information of APs, RSEs, RGEs and their clients, but will not be raised as disapproval items. Comments received after the dispatch of approval or disapproval letters by BD are transmitted by a separate letter. 5. When there are different views taken by APs, RSEs or RGEs from a government department commenting on a submission of building plans, the BA will

/arbitrate …..

- 2 -

arbitrate and take decisions on matters governed by the BO, according to the policies and procedures he adopts to enforce environmental, health and safety standards for buildings and building works. For all other comments relating to matters not governed by the BO, APs, RSEs and RGEs may approach the relevant government departments direct. In the event that there are divergent requirements from different government departments, BD will organise meetings with the parties concerned with a view to resolving the problem. Pre-submission Enquiry & Conference 6. APs, RSEs and RGEs may discuss with BD staff on specific issues of uncertainty prior to formal submission of building plans. In order to take advantage of this arrangement, APs/RSEs/RGEs should identify the issues with a specific proposition.

7. For sites involving complicated issues, the AP/RSE/RGE may, either at the request of or agreed by the relevant Chief Professional Officer, make a presentation of his case (with 3-D computer model if appropriate) after the submission of plans. Greater certainty in planning building projects 8. To assist APs, RSEs and RGEs in achieving greater certainty in planning building projects, BD operates a set of procedures containing the following features :

(a) On the 45th day of a submission of new building plans, APs/RSEs/RGEs may enquire and expect to know whether the submission is fundamentally acceptable. He may also request to discuss non-conformities identified prior to the issue of disapproval letter; and

(b) Where a submission of plans is considered fundamentally

unacceptable and disapproval items notified in writing within the statutory period of 60 days, new disapproval items will not, in normal circumstances, be added to the said proposal for subsequent resubmission of plans.

9. APs/RSEs/RGEs may make enquiries on (a) above direct to the Building Surveyor or Structural Engineer handling the submission in question. Staff disposition charts for staff with responsibilities for processing building plans are on display at relevant locations on BD’s premises. Application for modification 10. Each application for exemption or modification should be properly made on the specified Form BA 16 and should be supported by reasons as to what special circumstances prevail and why exemption or modification would be justified.

/11. …..

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11. To assist the BA in the processing of applications for modification, adequate information should be included in the Form BA16, a copy of which is at Appendix D and can be downloaded from BD’s web site (www.bd.gov.hk). 12. APs/RSEs/RGEs may make reference to the guidance notes at Appendix E for the necessary information to be submitted in conjunction with modifications/ exemptions frequently applied for. 13. In granting modification of or exemption from the provisions of the Buildings Ordinance, conditions may be imposed by the BA pursuant to section 42 thereof as contained in the Forms BD 106 issued to the APs/RSEs/RGEs, as the case may be. 14. To ensure these imposed conditions are fulfilled and the parameters for granting modifications/exemptions can be made known to the public and any person who may have an interest in such building, building works or alteration and addition to an existing building, the following conditions are to be imposed in the Form BD 106 :

(a) to incorporate the relevant conditions of modifications/exemptions in the subsequent amendment plans for submission to the BA for approval before the submission of a certificate under regulation 25 of the Building (Administration) Regulations (B(A)R) on completion of building works resulting in a new building or not so resulting, as the case may be.

(b) to submit a checklist of valid Forms BD 106 at the time of submission of a certificate under B(A)R 25 on completion of building works resulting in a new building or not so resulting, as the case may be. (A sample checklist is provided at Appendix F.)

Consent from adjoining owners and compliance with other enactments 15. The approval given by the BA should not be deemed to confer any title to land or to act as waiver of any term in any lease or licence pursuant to section 14(2) of the BO. Where a proposal involves building works at adjoining lots or buildings, the AP should ensure that separate consent is secured from the relevant owners prior to the commencement of the works. The AP should also consult other relevant authorities and ensure that the proposed building works comply with their requirements. Enhanced Transparency of Information on Gross Floor Area Concessions in Buildings 16. To enhance transparency of information on gross floor area (GFA) concessions in building developments, the BD will publish such information on its website after issuance of occupation permit for the respective building development. To ensure that clear and correct information is published, APs’ assistance is hereby requested to provide such information on the building plans submitted to the BA.

/17. …..

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17. In making application for approval of building development involving GFA concessions, detailed breakdown of the areas of such GFA concessions should be clearly specified on the building plans submitted to the BA for approval as set out in Appendix G. 18. To facilitate publication and public search of information on GFA concessions granted for newly-completed buildings, a summary of such concessions (sample at Appendix H) should be submitted together with the application for occupation permit. The relevant information will be uploaded on the BD’s website after issuance of occupation permit.

19. Paragraphs 15 to 17 are applicable to projects in respect of which an application for occupation permit is submitted on or after 1 September 2010. ( AU Choi-kai ) Building Authority Ref : BD GP/BOP/6 (XII) BD GP/BORD/26 (II) BD GR/1-10/328/0 This PNAP is previously known as PNAP 30 First issue September 1976 Last revision October 2010 This revision January 2011 (AD/NB1) (Paragraph 15 added, Appendix E, G & H amended)

Appendix A (PNAP ADM-2)

Check List on Documents Included in New Building /A & A Plan Submissions

PART 1 - GENERAL INFORMATION Address of Site : Lot No. : Description of Site/Works Yes No Is site (or part thereof) within Special Control Areas? e.g. Scheduled Area, Tung Chung Cable Car (Appendix I of PNAP ADM-2), MTRC or railway route/protection area/Sewage Tunnel

Does proposal comply with the permitted use under the Outline Zoning Plan?

Does proposal comply with HK Airport (Control of Obstruction) Ordinance?

Does the site abut onto a street of not less than 4.5m wide?

Are proposed works (or part thereof) located outside lot boundary?

PART 2 - DOCUMENTS SUBMITTED Yes N/A

Plans (2 signed and coloured sets for BA, 2 sets for D of FS*, 1set for DPO, 1 set for DLO in urban area (2 sets if lease conditions contain Design, Disposition and Height clause & 2 sets in N.T.)

Application for priority status

Application for fast track processing

Development Schedule (PNAP ADM-2)

Geotechnical Assessment Report (2 sets) (PNAP APP-25)

Form BA 4 (Appointment of AP/RSE/RGE)

Form BA 5 (Application for approval)

Form BA 6 (Stability Certificate for A&A Works)

Form BA 16 (Application for exemption/modification) please list total number

Justification/documents to support Form BA 16

Form BA 17 (Temporary building)

Payment of Fees (PNAP APP-55)

* 3 sets if subject to Fire Safety (Commercial Premises) Ordinance or the Fire Safety (Buildings) Ordinance. PART 3 - ADDITIONAL PLANS FOR REFERRAL (PNAP ADM-2)

Does proposal involve or affect the following? Yes no. If yes please indicate the number of additional set(s) of plans for referral to each of the organization

Scheduled Area No. 1, 2 or 4 / slope / retaining structure / deep excavation / disused tunnel / existing ground anchor / Designated Area / marine dredging (PNAP APP-25, APP-30, APP-61 & APP-134)

Geotechnical Engineering Office, CEDD (2 sets of plans with 2 copies of geotechnical assessment report)

Scheduled Area No. 5 (PNAP APP-62)

(a) Geotechnical Engineering Office, CEDD; and (b) Drainage Services Department

Scheduled Area No. 3 or MTR Protection Area & Work Sites (PNAP APP-24)/KCRC Railway Protection Areas (PNAP APP-131)

MTR Corporation Limited (MTRCL)

Culvert, nullah,

(a) Geotechnical Engineering Office, CEDD; (b) Drainage Services Department; and (c) Highways Department

Natural stream or river

(a) Drainage Services Department (b) Agriculture, Fisheries and Conservation

Department

Works affecting existing or proposed sewage works

(a) Geotechnical Engineering Office, CEDD; (b) Drainage Services Department

Kowloon Canton Railway route protection area or proposed rail routes

Railway Development Office, Highways Department

Eastern Harbour Crossing,

Central Kowloon Route Protection areas

District and Maintenance Section, Highways Department

Major Works Project Management Office, Highways Department

Light Rail Transit Railway route or reserves Light Rail, MTRCL

Tung Chung Cable Car Route Protection Area (a) Mass Transit Railway Corporation Limited; (b) Electrical and Mechanical Services Department;

and (c) Project Manager/CEDD

CLK Airport, works exceeding height limit under Cap 301, illuminated sky signs near Airport

Civil Aviation Department (2 sets of plans)

Internal street, vehicular access, street improvement, corner splay, street lighting, cinema entrances, parking provisions and layout, traffic engineering matters, structures to be erected in, over, under or upon street

(a) Highways Department (b) PM/CEDD for works in NT; and (c) Transport Department

Sea walls, marine works, port works, reclamation, dredging, pier, illuminated signs facing harbour

(a) Port Works Division, CEDD; and (b) Marine Department

Water mains

Water Supplies Department

Country parks

Agriculture, Fisheries and Conservation Department

Clinics

Department of Health

Hospitals

Hospital Authority

Schools, kindergartens

Education Bureau

Clubs

Licensing Authority, HAD

Hotel (a) Licensing Authority, HAD (b) Commissioner for Tourism

Gas supply installations, oil storage installations Gas Standards Office, EMSD

Pollution control, factory chimneys, sewage treatment plants, oil storage installations

Environmental Protection Department

Single occupancy factories

Labour Department

Monuments, Graded Buildings or Site having archaeological interest

Antiquities and Monuments Office, Leisure and Cultural Services Department

Mail Room

Post Office

Telecommunication Transmitting Stations

Office of the Telecommunications Authority

Refuse disposal or markets

Food and Environmental Hygiene Department

Nurseries, child care centres, residential care homes for the elderly; social service institutions

Social Welfare Department

Total no. of sets of plans to be submitted (Parts 2&3):

(Rev. 10/2010)

Appendix B (PNAP ADM-2)

Fire Service Installations Proposals 1. Upon submission of building plans to BD, the covering letter should be copied to the Fire

Services Department (FSD). 2. The two/three* sets of plans for referral to the FSD should be clearly identified by a

suitable note in bold lettering in the lower right hand corner of every plan and should show the proposed fire service installations and equipment referred to in Buildings Ordinance section 16(1)(b)(ii).

3. After checking, the plans will be dealt with in one of the following ways :

(a) If the plans are acceptable, FSD would issue a standard letter (with a copy to BD) notifying the AP to collect the set of endorsed plans from FSD. If a certificate is issued for the purpose of Buildings Ordinance section 16(1)(b)(ii), the AP shall endeavour to collect the certificate and pay the fee as specified in Regulation 3 of the Fire Services Department (Reports and Certificates) Regulations (Cap. 95C).

(b) If the plans are acceptable subject to minor changes, the AP will be invited by the FSD to make the necessary amendment. The procedure in sub-paragraph (a) above will then follow.

(c) If the plans are not acceptable, FSD would retain one set of plans and issue a letter (with a copy to BD) notifying the AP of the adverse comments and to collect the remaining set of plans from FSD. Such comments will not be repeated in any of BD's communication with the AP.

4. No matter the plans are acceptable or not, the relevant set of plans should be collected by

the AP within 3 months from the date of the notification letter from FSD. Otherwise, the uncollected plans will be deemed to be no longer required by the AP, and FSD will make arrangement for the disposal of those plans without further notification.

5. The Director of Fire Services may sometimes make additional recommendations which are

not related to the issue of a certificate under Buildings Ordinance section 16(1)(b). His various comments will therefore be grouped under the following headings :

(a) Reasons for Refusal of a Certificate under Buildings Ordinance section 16(1)(b)

(b) Strongly Recommended Practice

These are recommendations which if not adopted may render the completed building a fire hazard resulting in possible abatement action under the Fire Services Ordinance.

(c) Recommendations of a Purely Optional Nature

The adoption of these recommendations is considered to be good practice.

* 3 sets if subject to the Fire Safety (Commercial Premises) Ordinance or the Fire Safety (Buildings) Ordinance.

(Rev. 2/2009)

Appendix C

(PNAP ADM-2) Lease Matters 1. Upon formal submission to BD, two sets of plans together with the required Development

Schedule will be referred to the relevant District Lands Officer to check compliance with the lease conditions. Additional sets of plans may be required by the District Lands Officer in certain instances, e.g. where Government accommodation is involved. It will help to speed up the process if the name and contact telephone number of the AP are printed on the plans.

2. The District Lands Officer, after consultation with other interested parties, will advise AP

of his comments directly. 3. Where there are adverse comments under the lease conditions, the AP should, upon re-

submission through the centralised processing system, explain in a covering letter, copied to the District Lands Officer, how he proposes to resolve the anomalies.

4. All enquiries on lease matters should be forwarded directly to the relevant District Lands

Officer. If a lease modification is required, it should precede formal submission of plans.

Appendix D (PNAP ADM-2)

BUILDING AUTHORITY OF HONG KONG Form BA 16

BUILDINGS ORDINANCE (Chapter 123)

Section 42 _______________

Application for modification of and/or exemption from the provisions of the Buildings

Ordinance and/or regulations made thereunder

B.D. Ref. ________________ Date _________________

Address: _____________________________________ Lot No.: _____________________________________ To the Building Authority, Pursuant to the provisions of section 42 of the Buildings Ordinance, I hereby apply for a modification of and/or exemption from the provisions of the Buildings Ordinance/Regulations, namely ____________________________________ in respect of the following *building works/street works : Description of modification/exemption sought:

Location of subject and drawing number:

Special circumstances in connection with the said works in support of this application, including reasons for

not being able to comply with the Buildings Ordinance/Regulations:

Justifications, proposed remedies and supporting documents (if any):

______________________________ Signature and Full Name of applicant

______________________________

Capacity of applicant * Delete whichever is inapplicable

For internal use by officers of Buildings Department.

Initial Comments by CBS/CSE Initial Comments by SBS/SSE

Referral to BC required / not required *

Signature :

Referral to BC required / not required *

Signature :

BS’s/SE’s Comments

ACCEPT**

REFUSE**

Signature :

SBS’s/SSE’s Comments

ACCEPT**

REFUSE**

Signature :

Decision by (BC/CBS/CSE)*

ACCEPT**

REFUSE**

OTHERS**

Signature :

* Delete whichever is inapplicable ** Please tick as appropriate

Annex 2 (PNAP ADM-2)

Requirements on Fresh Air Intake of Mechanical Ventilation System

The fresh air intake should be placed where the air is free from contamination or odour. The location of fresh air intake should meet the following requirements :

(a) It should not be located within 5m from other sources of

contamination such as exhaust outlets of the building or adjacent buildings, traffic, car parks, unloading bays, refuse chutes/refuse rooms, evaporative cooling towers, emergency generators, plumbing vents, kitchens, and toilets;

(b) It should not be located below ground level or close to cooling

towers;

(c) It should face away from potential pollution sources; and

(d) It should be protected from rain entrainment, and covered by a screen to prevent the entry of birds, rodents, and extraneous articles.

(Rev. 5/2010)

Sample Undertaking

Undertaking to Surrender of Land for Street Widening Purpose _______________________

BD File Ref. _______________ Date : ___________________ To the Building Authority *I/we (name in full) _______________________________________ (Chinese)

________________________of (Address) __________________________________________

_____________________________________________________________________________

Telephone No. __________________, Fax No. ____________________ holder of *HKID

No./Business Registration Certificate No. ______________________, being the owner(s) of

(address of site) ______________________________________________________________

at (Lot no.) _______________________________, undertake to surrender a strip of land

abutting (name of street) _______________________________________________, as shown

coloured red (for identification purpose only) on the attached Plan for Surrender, subject to the

following clauses :-

(a) The subject land is to be surrendered to the State for the use of the Government free of all costs.

(b) *I/we undertake that the subject land is to be surrendered to the State for the use of the Government free of all buildings, walls, fences and other structures or erections and anything affixed to or projecting from any buildings, walls, fences and other structures or erections shall be cleared and removed prior to the surrender; and I/we* further undertake to be solely responsible to bear all costs and expenses in respect of such clearance and removal.

(c) *I/we undertake to pay the cost of paving, channelling and drainage of the subject land.

(d) *I/we undertake to execute appropriate surrender documents at the request of the Government.

*I/we further undertakes to pay on demand all costs, fees and expenses of the Government of and incidental to the proposed surrender including but not limited to the administrative fees of the Legal Advisory and Conveyancing Office of the Lands Department and related Land Registry charges at such rate in force when the demand is made and that *I/we shall be deemed to have knowledge of such rate as revised and announced from time to time.

_________________________ Signature _________________________ Capacity * Delete whichever is inapplicable

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Appendix E (PNAP ADM-2)

Guidance Notes on Information Required in conjunction with Building (Planning) Regulations 23(3)(b) and

Modifications/Exemptions Frequently Applied For Buildings Ordinance (BO) s31(1) - projection over street

Details of the proposed projection (plan, elevation and section), clearance over pavement/street, width of the existing pavement and carriageway. (Note: For application for installation of sheet piles under a public street, the BA would only consider an application if relevant governments raise no objection and that the requirements imposed by the concerned department(s), if any, are complied with.)

Building (Planning) Regulations (B(P)R) 20 & 21- exclusion of projections from plot ratio (PR) and site coverage (SC) calculations (PNAP APP-19)

Justification for AC boxes and platforms not complying with paragraph 3(b) of PNAP APP-19.

B(P)R20 - excessive site coverage for upgrading FS installation in existing buildings

Confirmation if the work is to bring the FS installation in the existing building up to the current standard.

B(P)R20 & 21- exclusion of existing party structures and common staircases of an existing old building that would be demolished in due course from SC&PR calculations

Details indicating if the party structures are physically separated from the proposed new building and whether there is intervening space for potential infilling.

GFA calculation of the proposed areas to be exempted.

B(P)R22 - application for bonus PR/SC for dedication/surrender of land for public passage/street widening (PNAP APP-108)

Plans suitably marked up to delineate the proposed area to be dedicated/surrendered.

Letter undertaking that the areas will be dedicated/surrendered to the Government, that it will be embodied in a Deed of Dedication, Agreement to Surrender or the lease of the lot and that the Deed/Agreement/lease will be executed and registered at the Land Registry prior to application for consent to commence of works. (sample undertaking for surrender of land is attached for reference)

For cases involving dedication of areas within the building envelope - the location of the plague(s) stating the dedication of the areas for public passage and details of such plague(s).

GFA calculation of the proposed areas to be exempted and bonus GFA to be claimed.

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B(P)R23(3)(a) - exclusion of voids in non-domestic developments (including entrance voids) from GFA (PNAP APP-2)

Plans and sections marking clearly the location of the void and the proposed use of the space.

GFA calculation of the proposed areas to be exempted. B(P)R23(3)(a) - exclusion of voids in duplex domestic flats/ houses from GFA (PNAP APP-2)

Details showing the criteria set out in PNAP APP-2 are complied with. GFA calculation of the proposed areas to be exempted.

B(P)R23(3)(a) - exclusion of chimney shaft and filtration plant rooms for communal swimming pool from GFA (PNAP APP-2)

Details of plants and equipment for filtration plant room for communal swimming pool with justification for the spacing between plants/equipment or from the walls of the room if such spacing is more than 1.5m.

GFA calculation of the proposed areas to be exempted. B(P)R23(3)(a) - exclusion of covered landscaped and play areas, recreational facilities in domestic development from GFA (PNAP APP-42 and PNAP APP-104).

GFA calculation of the proposed areas to be exempted including all voids, covered walkway and plant rooms serving solely for recreational facilities.

Details of the plants and equipment for swimming pool filtration plant room serving solely for recreational facilities with justification for the spacing between plants/equipment or from the walls of the room if such spacing is more than 1.5m.

Plans with the proposed areas and its GFA calculation suitably highlighted for registration in the Land Registry.

For recreational facilities, details showing the criteria set out in PNAP APP-42 and APP-104 are complied with and financial statement to indicate the viability for maintenance of the facilities.

B(P)R23(3)(a) - exclusion of horizontal screens/covered walkway in domestic or composite developments and trellis from GFA (PNAP APP-42)

Details of the proposed horizontal screens and trellis (plan and section). Details showing the criteria set out in PNAP APP-42 are complied with. Justification on the need for cases where the width of the horizontal screen/covered

walkway is more than 2m. GFA calculation of the proposed areas to be exempted.

B(P)R23(3)(a) - exclusion of counters, offices, stores, guard rooms and lavatories for watchman and management staff and owner’s corporation office from GFA (PNAP APP-42)

Location together with GFA calculation of the proposed areas to be exempted. Details showing the criteria set out in PNAP APP-42 are complied with.

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For owners’ corporation office, justification on proposed size or required size under lease.

B(P)R23(3)(a) - exclusion of lift shaft areas in domestic/composite and office buildings from GFA (PNAP APP-89)

GFA calculation of the proposed areas to be exempted. Assessment from a lift engineer or consultant confirming that, according to

international codes, the lift service to be provided is above the acceptance level of service in terms of handling capacity and waiting time and that there is adequate manoeuvring space for the carrying out of maintenance work.

B(P)R 23(3)(a) – exclusion of voids of cocklofts over G/F shops in single-staircase buildings (PNAP APP-2)

Details showing if the following criteria are complied with: a. The cocklofts are constructed over ground floor shops forming an integral

part and within the curtilage of the ground storey; b. The cocklofts are used only as storage for the shops; c. There is no sanitary provision in the cocklofts; d. The cocklofts are not at the same level as any adjacent staircase landing; e. The cocklofts are only accessible through the G/F shop; f. A minimum clearance of 1.5 m is maintained across the front; g. All openings in the cockloft floor are only defended with protective barriers;

and h. Only one such cockloft is situated in any one shop.

GFA calculation of the proposed areas to be exempted. B(P)R 23(3)(a) – exclusion of refuge area which are required under MOE Code from GFA (PNAP APP-2)

Details showing compliance with MOE Code and FRC Code. GFA calculation of the proposed areas to be exempted.

B(P)R 23(3)(a) – exclusion of pipe ducts and air ducts from GFA (PNAP APP-2 and APP-93)

Details showing the criteria set out in PNAP APP-93 are complied with. Location and dimension of pipe ducts and pipe wells with justification as

appropriate. GFA calculation of the proposed areas to be exempted.

B(P)R 23(3)(a) – exclusion of boiler room, SMATV room, plant room for environmentally friendly system and feature from GFA (PNAP APP-2)

GFA calculation of the proposed areas to be exempted. Location and size of rooms as appropriate.

- 4 -

For plant rooms to accommodate energy efficient or environmental friendly systems/ features, quantitative justifications on energy saving/ benefit to the environment.

B(P)R23(3)(b) - acceptance of disregarding essential plant rooms, e.g.TBE room, refuse storage and material recovery chambers and refuse chutes, water tank rooms, pump rooms, sewage treatment plant rooms etc. from GFA calculations (PNAP APP-2 and APP-42)

GFA calculation of the proposed areas to be disregarded, including the enclosing walls and the associated protected lobby, if any, solely serving the said rooms or features.

Location of plants and equipment with justification as appropriate. B(P)R23(3)(b) - acceptance of disregarding non-essential plant rooms, e.g. AC plant rooms & AHU rooms from GFA calculations (PNAP APP-2 and APP-42)

GFA calculation of the proposed areas to be disregarded. Location of plants and equipment with justification as appropriate. For AC plant room with access within an individual residential unit, justification on

the location and proposed size. B(P)R23(3)(b) - acceptance of disregarding car parking and loading and unloading areas (and associated ramps and facilities) from GFA calculations (PNAP APP-2 & APP-40)

Standard of carparking spaces set out in HKPSG. Justification on the design and layout based on site specific demand to the

satisfaction of Transport Department. Electric vehicle (EV) charging facilities to be installed with location and dimension

of associated facilities, if applicable. Justification on the infeasibility of underground carparks, if applicable.

B(P)R 25 - exemption of open space requirement for hotel development

Confirmation if the proposed hotel complies with the requirements of PNAP APP-40.

B(P)R30, 36 - omission or reduction in standard of natural lighting and ventilation for ancillary office which does not exceed 30% of the GFA of the premises within which it is located, toilets and kitchens in licensed premises, toilets in basement, internal toilets in non-domestic buildings, internal bathrooms in hotel premises and changing rooms containing sanitary fitments etc.

Calculation of the usable floor area, % of deficiency in the areas provided for glazed and/or openable windows against the areas prescribed under B(P)R30, 36.

Assessment report confirming that mechanical means of ventilation to be provided in the building is capable of supplying fresh air at the rates stipulated in Annex 1.

Compliance with the requirements set out in Annex 2 of PNAP ADM-2 for the fresh air intake.

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The submission of plans and sections marking clearly the locations of the proposed fresh air intake shall be submitted except for a central AC system for B(P)R 36.

B(P)R30(2)(a)(ii) - reduction of openable windows for non-domestic commercial buildings fitted with curtain wall.

Calculation of the usable floor area and actual areas provided for openable windows.

Assessment report confirming that mechanical means of ventilation to be provided in the building is capable of supplying fresh air at the rates stipulated in Annex 1.

Plans and sections marking clearly the locations of the proposed fresh air intake to indicate the compliance of the requirements set out in Annex 2.

Elevations and plans highlighting location of the openable windows indicating whether

the area of openable windows is not less than 1% of the floor area; the provision of openable sashes is equally distributed about the façade; the openable windows can be readily opened; the accommodation is designed so that all units are capable of receiving natural

ventilation in the event of failure of the mechanical system. B(P)R35A - omission of gas aperture in a bathroom in domestic premises (sharing of water heater installed in another room)

Location of the hot water heater and details showing the hot water pipe from the said water heater complies with Waterworks Regulation 19.

B(P)R35A - omission of gas aperture in a shower room for recreational facilities

Indication on whether electric water heater will be installed prior to completion of the building.

B(P)R36 - omission or reduction in standard of natural lighting and ventilation to bathrooms in domestic flats or houses. (PNAP APP-98)

Location of the ventilation duct, aperture in wall or door (with area calculation) and flue apertures on the plan.

B(P)R40 - omission of natural lighting to staircases within a podium above the ground floor or within the central core of office towers

Indication that a permanent artificial lighting system with 30 lux min. lighting level backed up by an emergency lighting system providing a horizontal illuminance at floor level of not less than 2 lux complying with the Code of Practice for Minimum Fire Service Installations and Equipment/requirements of the Director of Fire Services and BS5266 Part 1:1988, and permanently maintained in effective working order, will be provided.

B(SSFPDWL)R48 – to have a less fall for drains and sewers

Substantiation that a minimum velocity of 750mm/sec is achieved.

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B(SSFPDWL)R50(3) - provision of flexible joint for underground drainage pipework in reclaimed land

Calculations on the anticipated settlements and test report demonstrating that the joint can accommodate the anticipated settlement.

Location of the flexible joint(s). B(C)R9A - deviation from the requirements of the Code of Practice on Building Works for Lifts and Escalators relating to the dimensions of lift well and/or machine room

List the deviations from the Code of Practice with full justification for non-compliance.

For variation of the size of the lift well Specification of lift installation (i.e. no. of passengers, rated load and rated speed). Details of the lift well including width/depth showing the distances between the lift car and counterweight (and its associated components) and between guide rails and walls of lift well.

For variation of the lift well headroom and pit depth calculations with details of the headroom of the lift well and pit depth indicating that the relevant requirements in the Code of Practice on the Design and Construction of Lifts and Escalators (Design Code) are satisfied.

For variation of size or height of machine room Details showing that the relevant requirements in the Design Code are satisfied.

Confirmation from a registered lift engineer or an authorized signatory of a registered lift contractor that the installation can be accommodated in the proposed lift well and machine room, any future maintenance, repair, major alteration, replacement, examination and testing of lift can be carried out in the proposed lift well and machine room safely and without difficulty; and the lift installation is in full compliance with the Design Code.

(Rev. 01/2011)


Fresh Air Supply Requirement for Non-Domestic Buildings and Hotel Bathrooms

A) Mechanical Ventilation

B) Mechanical Ventilation in the form of Central Air-conditioning

* The air exhausted from toilets in non-domestic buildings and bathrooms in hotels may

be compensated by air supplied through adjacent areas. However, the mechanical exhaust should not be re-circulated.

(Rev. 5/2010)

Building/Premises Fresh Air Supply Requirement

Ancillary Offices

(not exceeding 30% of the GFA of the premises within which it is

located)

5 Air Changes Per Hour (ACH)

Kitchens in licensed premises

20 ACH

Toilets in non-domestic Buildings

10 ACH

Building/Premises Fresh Air Supply Requirement

Purpose designed office

buildings

1.1 L/s/m² or 10 L/s/person

Toilets in non-domestic

Buildings

10 ACH *

Bathrooms in hotels

18 L/s/room *


Requirements on Fresh Air Intake of Mechanical Ventilation System

The fresh air intake should be placed where the air is free from contamination or odour. The location of fresh air intake should meet the following requirements :

(a) It should not be located within 5m from other sources of

contamination such as exhaust outlets of the building or adjacent buildings, traffic, car parks, unloading bays, refuse chutes/refuse rooms, evaporative cooling towers, emergency generators, plumbing vents, kitchens, and toilets;

(b) It should not be located below ground level or close to cooling

towers;

(c) It should face away from potential pollution sources; and

(d) It should be protected from rain entrainment, and covered by a screen to prevent the entry of birds, rodents, and extraneous articles.

(Rev. 5/2010)

Sample Undertaking

Undertaking to Surrender of Land for Street Widening Purpose _______________________

BD File Ref. _______________ Date : ___________________ To the Building Authority *I/we (name in full) _______________________________________ (Chinese)

________________________of (Address) __________________________________________

_____________________________________________________________________________

Telephone No. __________________, Fax No. ____________________ holder of *HKID

No./Business Registration Certificate No. ______________________, being the owner(s) of

(address of site) ______________________________________________________________

at (Lot no.) _______________________________, undertake to surrender a strip of land

abutting (name of street) _______________________________________________, as shown

coloured red (for identification purpose only) on the attached Plan for Surrender, subject to the

following clauses :-

(a) The subject land is to be surrendered to the State for the use of the Government free of all costs.

(b) *I/we undertake that the subject land is to be surrendered to the State for the use of the Government free of all buildings, walls, fences and other structures or erections and anything affixed to or projecting from any buildings, walls, fences and other structures or erections shall be cleared and removed prior to the surrender; and I/we* further undertake to be solely responsible to bear all costs and expenses in respect of such clearance and removal.

(c) *I/we undertake to pay the cost of paving, channelling and drainage of the subject land.

(d) *I/we undertake to execute appropriate surrender documents at the request of the Government.

*I/we further undertakes to pay on demand all costs, fees and expenses of the Government of and incidental to the proposed surrender including but not limited to the administrative fees of the Legal Advisory and Conveyancing Office of the Lands Department and related Land Registry charges at such rate in force when the demand is made and that *I/we shall be deemed to have knowledge of such rate as revised and announced from time to time.

_________________________ Signature _________________________ Capacity * Delete whichever is inapplicable

Appendix F (PNAP ADM-2)

Checklist on Valid Forms BD 106

To the Building Authority:

BD Ref. : ___________________ Date : __________________

Re : ________________________________ (Address of development site)

Permit No. & Issue Date Description Validity

HK XXX/2005(MOD) XX/7/2005

(1) Building (Planning) Regulation 23(3)(a) to permit the following to be excluded from gross floor area calculation:

(i) Recreational Facilities on Podium2/F & Podium 3/F (ii) Roof Garden at Grid 10-12, E-J on Podium 3/F (iii) Landscape Garden under the footprint of Domestic Tower on Podium 3/F (iv) Refuge Floor (v) Filtration Plant Room on Podium 2/F (vi) Pipe Ducts as shown on plans (vii) Caretaker counter on G/F (viii) Owner's Committee Office on Podium 3/F (xi) Lift Shafts Areas over and above 2.5% of the total gross floor area (2) Building (Planning) Regulations 20 & 23(3)(a) to permit the following to be

excluded from site coverage and gross floor area calculations:

(i) Balconies & Utility Platforms on 5/F to 38/F (ii) Width of Lift Lobbies & Corridor on 5/F to 39/F (3) Building (Planning) Regulation 30 to permit the omission of natural lighting and

ventilation in the following:

(i) Owner's Committee Office on Podium 3/F (4) Building (Planning) Regulation 36 to permit the omission of natural lighting and


(i) Internal Bathrooms on 5/F to 39/F (ii) Internal Toilets & Changing on G/F to Podium 3/F (5) Building (Construction) Regulation 35 to permit the level of the following to be less

than 150mm above the external ground:

(i) Shops on G/F (6) Building (Planning) Regulation 40 to permit the omission of natural lighting in the

following:

(i) ST-1 to ST-5 above Ground Floor

HK XXX/2005(MOD) XX/11/2005


(i) Recreational facilities on 42/F, 43/F & 45/F (ii) Covered Landscape Garden on 3/F (iii) Filtration Plant Room on 43/F (iv) Void over Domestic Entrance on G/F (v) Void over Game Room on 43/F (vi) Owner's Committee Office & Caretaker Office on 42/F (2) Building (Planning) Regulations 20 & 23(3)(a) to permit the following areas to be


(i) Balconies & Utility Platforms on 8/F to 41/F (ii) Width of Common Corridors & Lift Lobbies on 8/F to 41/F (3) Building (Planning) Regulation 36 to permit the omission of natural lighting and


(i) Internal Bathrooms from 8/F to 41/F (ii) Internal Toilets on G/F to Podium 2/F

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Permit No. & Issue Date Description Validity

HK XXX/2006(MOD) XX/5/2006


(i) Recreational facilities on 41/F to 43/F (ii) Filtration Plant Room on 42/F (iii) Void over Table Tennis Room on 42/F (vi) Owner's Committee Office & Caretaker Office on 41/F (2) Building (Planning) Regulations 20 and 23(3)(a) to permit the following to be


(i) Mail Delivery Room on G/F (ii) Balconies & Utility Platforms on 7/F to 40/F (iii) Width of Common Corridors & Lift Lobbies on 7/F to 40/F (3) Building (Planning) Regulation 36 to permit the omission of natural lighting and


(i) Internal Bathrooms on 7/F to 40/F

HK XXX/2006(MOD) XX/8/2006

(1) Building (Administration) Regulation 33(1) to permit exemption from obtaining prior approval and consent for amendments to works to the following approved plans:

(i) Superstructure - Metal and Glass Railing at Podium and Typical Floor Balcony N/A

HK XXX/2006(MOD) XX/8/2006


(i) Superstructure - Aluminium Grille at Typical Floor N/A

HK XXX/2006(MOD) XX/9/2006

(1) Building (Planning) Regulation 36 to permit the omission of natural lighting and ventilation to the following:

(i) Disabled Toilets on 41/F & Changing Rooms on 43/F

HK XXX/2006(MOD) XX/10/2006


(i) Superstructure - Aluminium Cladding at Typical Floor N/A (ii) Superstructure - Glass Wall and Skylight at G/F N/A

HK XXX/2006(MOD) XX/10/2006


(i) Superstructure - Aluminium Sliding Door N/A (ii) Superstructure - Aluminium Cladding for Tower N/A (iii) Superstructure - Stone Cladding N/A (vi) Superstructure - Aluminium Windows (31/F to 40/F) N/A

I, (name in full) ______________________________, authorized person, confirm that for the purpose of Building (Administration) Regulation 44, the valid Forms BD 106 issued in respect of the captioned development site are summarized in the above checklist. _________________________ Signature of authorized person

Certificate of Registration No.: _________________________

Date of expiry of registration : _________________________ (2/2009)

- 1 -

Appendix G (PNAP ADM-2)

Areas of GFA Concessions The areas of GFA concessions should be clearly specified on the building plans as follows:

To be specified on plans in making application for GFA concessions

To be specified in the final amendment plans prior to the application for occupation permit

Subject to the Overall cap (PNAP APP-151)

Disregarded GFA under Building (Planning) Regulations 23(3)(b)

1. Carpark and loading/unloading area excluding public transport terminus

✓

2. Plant rooms and similar services 2.1 Mandatory feature and essential plant room,

area of which is limited by respective PNAP or regulation such as lift machine room, TBE room, refuse storage and material recovery chamber, etc.

✓ ✓

2.2 Mandatory feature and essential plant room, area of which is NOT limited by any PNAP or regulation such as room occupied solely by FSI and equipment, meter room, transformer room, potable and flushing water tank, etc.

✓

2.3 Non-mandatory / non-essential plant room such as A/C plant room, AHU room, etc.

✓ ✓ ✓

Disregarded GFA under Building (Planning) Regulations 23A(3) 3. Area for picking up and setting down persons

departing from or arriving at the hotel by vehicle

✓

4. Supporting facilities for a hotel ✓ ✓

Green Features under JPN 1 and 2

5. Balcony for residential buildings ✓ ✓ ✓ 6. Wider common corridor and lift lobby ✓ ✓ ✓ 7. Communal sky garden ✓ ✓ 8. Communal podium garden for non-residential

buildings ✓ ✓

9. Acoustic fin ✓ ✓ 10. Wing wall, wind catcher and funnel ✓ ✓ 11. Non-structural prefabricated external wall ✓ ✓ ✓ 12. Utility platform ✓ ✓ ✓ 13. Noise barrier ✓ ✓

Amenity Features

14. Counter, office, store, guard room and lavatory for watchman and management staff, Owner’s Corporation Office

✓ ✓

✓

- 2 -

15. Residential Recreational facilities including void, plant room, swimming pool filtration plant room, covered walkway etc serving solely the recreational facilities

✓ ✓ ✓

16. Covered landscaped and play area ✓ ✓ 17. Horizontal screen/covered walkway, trellis ✓ ✓ ✓1 18. Larger lift shaft ✓ ✓ ✓ 19. Chimney shaft ✓ ✓ ✓ 20. Other non-mandatory or non-essential plant

room, such as boiler room, SMATV room ✓ ✓ ✓

21. Pipe duct, air duct for mandatory feature or essential plant room

✓

22. Pipe duct, air duct for non-mandatory or non-essential plant room

✓ ✓ ✓

23. Plant room, pipe duct, air duct for environmentally friendly system and feature

✓ ✓

24. High headroom and void in front of cinema, shopping arcade etc. in non-domestic development

✓ ✓

25. Void over main common entrance (Prestige entrance) in non-domestic development

✓ ✓ ✓

26. Void in duplex domestic flat and house ✓ ✓ ✓ 27. Other projections such as air-conditioning box

and platform with a projection of more than 750mm from the external walls

✓ ✓ ✓

Other Exempted Items

28. Refuge floor including refuge floor cum sky garden

✓

29. Other projections ✓ 30. Public transport terminus (PTT) ✓ ✓ 31. Party structure and common staircase ✓ 32. Horizontal area of staircase, lift shaft and

vertical duct solely serving floor accepted as not being accountable for GFA

✓

33. Public passage ✓ 34. Covered set back area ✓ ✓

Bonus GFA

35. Bonus GFA ✓ ✓

1 Horizontal screen / covered walkway / trellis may be excluded from the overall cap on GFA concessions subject to provision of greenery to BA’s satisfaction as stipulated under PNAP APP-42. (Rev. 1/2011)

Appendix H (PNAP ADM-2)

Summary of GFA Concessions BD Ref.:

Disregarded GFA (Carpark and

loading/unloading areas excluding PTT)

Disregarded GFA other than carpark and

loading/unloading areas (e.g. plant rooms and

similar services )

Disregarded GFA in hotel under Building

(Planning) Regulations 23A(3)

Exempted GFA of green features under Joint

Practice Note No. 1 & 2

Exempted GFA of amenity features and other exempted items

Bonus GFA Feature Subject to

the Overall Cap@ Building

Name and

Address

Total Approved

Domestic & Non-domestic Gross Floor Area (GFA)

including bonus GFA

Area (m2)

% Area # (m2) % Area (m2) % Area # (m2)

% Area # (m2) % Area (m2) % Area (m2)

%

(A) (B) (C) = (B/A) (D) (E) = (D/A) (F) (G) = (F/A) (H) (I) = (H/A) (J) (K) = (J/A) (L) (M) = (L/A) (N) (O) = (N/A)

1. 2.1 2.2 2.3 Total: Total@:

3 4 Total:

5. 6. 7. 8. 9. 10. 11. 12. 13. Total: Total@:

14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. Total: Total@:

35

Notes: 1. # Item number please refer to Appendix G of PNAP ADM-2

2. Items 2.3, 5, 6, 11, 12, 14, 15, 17 to 20, 22, 25 to 27 are subject to the overall cap (applicable to new building plans submitted for approval on or after 1.4.2011. 3. @ For items subject to overall cap (see Notes 2. above).

I, (name in full) _____________________________________, authorized person, confirm that for the purpose of Building (Administration) Regulations 44, the GFA concessions in respect of the captioned development site are summarized in the above summary. _______________________________ Signature of authorized person

Certificate of Registration No.: _______________________________ Date of expiry of registration : _______________________________ (01/2011)

Appendix I (PNAP ADM-2)

Tung Chung Cable Car Route Protection Area The Tung Chung Cable Car (TCCC) System is owned by the Mass Transit Railway Corporation Limited (MTRCL). As the TCCC runs above land not owned by the operators, MTRCL has prepared a plan showing the TCCC Route Protection Area and requested for building plans of development proposals falling within the Route Protection Area be referred to MTRCL for review in order to ensure that the proposed works would be compatible with the safe operation of the TCCC system. Figure 1 and Figure 2 show the location and the route protection plans of the TCCC. Details of the route protection plan are available at BD’s website at http://www.bd.gov.hk/, and are available for inspection in Ngong Ping 360 Limited as follows: Contact Person : Department Head of Cable Car Operations

Address : Ngong Ping 360 Limited 11 Tat Tung Road Tung Chung Lantau

Phone No. : 3666 0600

Fax No. : 2109 2030

Enquire : [email protected] (10/2010)

User

Text Box

Figure 2

Buildings Department Practice Note for Authorized Persons and Registered Structural Engineers

34

Re-issued under new categorization in August 2009 as Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers

ADM-3

Emergency Situations Telephone Numbers for Use Outside Office Hours Staff of the Buildings Department (BD) are on 24-hour call and stand by even outside office hours to attend to emergencies sometimes involving sites where building works are in progress. 2. Often the remedy may be a relatively simple matter if the authorized person (AP), registered structural engineer (RSE) and/or registered geotechnical engineer (RGE) responsible for the development can be contacted in time. This would avoid much inconvenience and delay, e.g. clearance of major thoroughfares due to collapsed scaffolding or hoarding, and obviate the need to use the Government Contractor at the expense of the owner of the building. 3. APs, RSEs and RGEs have a duty to ensure that no danger is caused to the public by the building works for which they are responsible. You are therefore requested to inform BD of your telephone number, fax number and mobile telephone number, if any, for use in emergencies. Please also keep BD informed of any change in these numbers by using the attached letter. 4. All telephone numbers supplied will be used by BD staff only for emergency purpose as outlined in this Practice Note.

( CHEUNG Hau-wai ) Building Authority

Ref. : BD REG/GP/1 First issue December 1976 Last revision April 1994 This revision August 2007 (AD/Support) Index under : Emergency Situations - Telephone Numbers for Use Outside Office

Hours

Appendix A

(PNAP 34) (ADM-3)

For Use by Authorized Persons Registered Structural Engineers and Registered Geotechnical Engineers To : Registration Unit Buildings Department 12/F Pioneer Centre 750 Nathan Road, Mongkok Kowloon (Fax. No. 2625 0437) Emergency Situations Telephone Numbers for Use Outside Office Hours Re. PNAP No. 34, I hereby notify that my telephone number(s) is (are) as follows :

Tel. no(s) : ______________________________ Mobile tel. no(s) : ______________________________ Fax no(s) : ______________________________

These number(s) should be used only for emergencies outside office hours concerning building sites for which I am the AP/RSE/RGE. If there is any change, I will advise you as soon as possible.

Signature : ______________________________ Name : ______________________________ Registration No. : ______________________________ Date : ______________________________

Buildings Department’s Statement on Personal Information Collection Any personal data provided in this form will only be used for the purposes of contacting you in case of emergencies outside office hours concerning building sites for which you are the AP/RSE/RGE. The provision of personal data by means of this form is voluntary. You have rights of access and correction to your personal data. If you wish to exercise these rights with respect to your personal data held by us, please contact Registration Unit of this department at tel. no. 2626 1192. (Rev. 8/2007)


Buildings Department

Practice Note for Authorized Persons and Registered Structural Engineers 40

ADM-4

Priority

On application, the grant of priority status for processing submissions for new buildings will be considered for the following types of project:

(a) (i) Urgently required public utility and institutional

buildings. (ii) Hong Kong Housing Society Projects.

(b) Projects on lands owned by the Hong Kong Science and

Technology Parks Corporation (previously known as the Hong Kong Industrial Estates Corporation).

(c) Any project submitted for or on behalf of the Urban Renewal

Authority by a wholly owned subsidiary company or a joint venture consortium of which the Urban Renewal Authority is a partner.

(d) Projects that are likely to significantly contribute to the

economic growth of Hong Kong.

2. Cases falling within criterion (a)(i) include schools, electricity sub-stations and other buildings of a similar nature where it can be shown that they are urgently required and it would be in the public interest for priority to be granted. Positive support from relevant government departments is required for applications for priority under criterion listed in paragraph (1)(d). It is possible that other high public interest projects not covered by the above criteria may also merit priority for special reasons but this will only be granted in exceptional circumstances and after consultation with the government departments concerned. 3. Application for priority status should accompany the first submission of plans to Buildings Department (BD). Projects only involving alterations and additions of existing buildings will not normally be granted priority. However, any projects designed to combat pollution (air, noise or water), or to eliminate or reduce the discharge of existing polluting waste and noxious or toxic effluents, may be accorded priority status. 4. Priority projects will be kept under constant review to ensure that the need for priority treatment is still appropriate. Where a priority project does not proceed expeditiously, its priority status may be withdrawn.

/5. The ...

- 2 -

5. The grant of priority only applies to matters involving BD and will have no bearing on land transactions. ( Marco M H WU )

Building Authority Ref. : BD GP/CC/10 (II) First issue April 1977 Last revision June 1991 (GBS/D) This revision March 2005 (AD/NB1) - General Revision Index under : Priority


58


ADM-5

Submissions to the Buildings Department

Many submissions received by the Buildings Department are subject to statutory time limits. With the implementation of the five-day week in the government starting 1 July 2006, our Receipt and Despatch Counter will not open on Saturdays. We have, however, extended the opening hours of the counter on Mondays to Fridays and would appreciate your cooperation in putting in submissions by chit book or messenger during the hours below : Mondays to Fridays 8:30 am to 5:15 pm 2. To facilitate efficient working of the time-stamp machine, we would also appreciate your co-operation in folding your plans in the manner indicated in Appendix A.


Ref. : BD GR/1-135/1 First issue April 1979 Last revision April 1999 This revision June 2006 (AD/Sup) – para. 1 revised Index under : Receiving and Despatching Submissions by Messenger/Chit Book to BD Folding of Plans

Appendix A (PNAP 58)

(ADM-5)

Folding of Plans

Preferred way - fold plans along dotted line

Direction of fold

Direction of fold

Front side

Step 1

Step 2 Front side (Rev. 4/1999)

Re-issued under new categorization in August 2009 as Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers ADM-6


79

Computer Programs for Use in Structural and Geotechnical Design

An authorized person (AP), a registered structural engineer (RSE) or a registered geotechnical engineer (RGE) may use computer programs to produce calculations to support his design or to produce designs for submissions to the Building Authority (BA). Where he intends to do so, he should ensure that the program from which such calculations or designs are produced is acceptable to the BA before submitting plans for approval under the Buildings Ordinance. Prior Acceptance of Computer Program 2. An application for prior acceptance of structural computer program and geotechnical computer program should be made by a RSE and a RGE respectively. A computer program accepted by the Buildings Department (BD) will be assigned a BD reference number (prefixed ‘S’ for structural and ‘G’ for geotechnical), which should be quoted in submissions. 3. Application for prior acceptance of a computer program (including the renewal of the prior acceptance) should be made using the standard pro forma in Appendix A. The completed pro forma should be accompanied by relevant documentation of the program including a user’s manual giving the following information:

(a) mathematical modelling of the analysis and/or design; (b) flow charts showing the analysis and/or design

procedure; (c) Building Regulations, codes of practice or other

requirements which the analysis or design produced by the program will comply with;

(d) theory of analysis and mathematical basis of the

computational algorithm which are used in the program including any references;

(e) limitations and applicability of the program; (f) structure and method of data input and output;

/(g) …..

- 2 -

(g) interpretation of results; and (h) examples which are sufficient to illustrate the operation

of every part of the program at all representative input data values and verified by the RSE or the RGE, as appropriate to the type of computer program.

Additional test examples may be required in order that the accuracy of the computer program can be fully demonstrated. Use of computer Program in Submission of Plans for Approval 4. When using the program to support structural or geotechnical design, the AP or RSE or RGE is required to provide the information in the first part of the structural calculations as stipulated in paragraph 9(b) of PNAP 121.

5. For structural computer programs, the RSE should be responsible for the program execution. Similarly, a RGE should be responsible for the program execution for geotechnical computer programs. The AP/RSE/RGE is also required to complete the standard pro forma in Appendix B and/or C and include it in the submission.

6. When a submission is supported by a computer program which does not bear a valid prior acceptance, the BA may require all information listed in paragraph 3 to be included in the submission for consideration.

Renewal of Prior Acceptance and Changes to Pre-Accepted Programs

7. The prior acceptance of any computer program will be valid for a period of up to three years. In view of advances in science and technology and periodic revision to Codes of Practice, prior acceptance of any computer program will be considered to have expired on a date three years from the date of last acceptance. 8. Application for renewal of the prior acceptance may be made upon expiry, but not earlier than four months from the expiry date. Such applications will be examined by BD in the light of the requirements set out in this practice note. 9. If changes are proposed to an accepted program, details of the amendments and the updated user manual (if applicable) should be submitted to BD for acceptance before using the revised program.

/10. …..

- 3 - 10. Lists of currently accepted structural and geotechnical computer programs, and program limitations are available for inspection at the general registries of BD on 13/F, 14/F & 15/F of Pioneer Centre, 750 Nathan Road, Mong Kok, Kowloon or through the website of the Buildings Department (www.bd.gov.hk) ( H W CHEUNG ) Building Authority Ref.: BD GR/OA/71/1 First issue December 1981 Last revision September 2002 This revision December 2005 (AD/Sup) (Paras. 1, 2, 3, 4 & 5 amended to include RGE) Index under: Computer Programs

APPLICATION FOR PRIOR-ACCEPTANCE* / RENEWAL* Appendix A OF STRUCTURAL* / GEOTECHNICAL* COMPUTER PROGRAM (PNAP 79) (ADM-6) A. Details of Applicant (RSE for Structural Program; RGE for Geotechnical Program):

Name: ............................................................(RSE* / RGE*) & Registration No: ..........………..Address: ................................................................................................................………………. . ................................................................................................................……………….

B. Program Name: ........................................................................................................………………

Program Version: .....................................................................................................………………

Program Developer: (Name/Identification) ................................................................................................……………..

BD Reference Number (for renewal case only): ………………………………………………………………………….. C. The following Supporting Documents substantiating the application are enclosed (please tick

box):- (a) Structural Program:- One copy of Program Manual ...........…... & Flow chart(s)......... (b) Geotechnical Program:- TWO copies of Program Manual …... & Flow chart(s).........

D. Areas of application of the computer program (e.g. Space frame/space truss/core wall/seepage/slope stability/retaining wall stability analysis, etc.):

E. Brief description of program, assumptions and theory (e.g. linear/non-linear, static/dynamic analysis; method of data input and result output; modular ratio/finite element/stiffness method; etc.):

F. Program Limitations (e.g. number of elements/joints/nodes/material zones/struts/surcharges/load cases/end releases; load types/conditions; scope of analysis; compliance standards/codes; partial load factors; load combination factors; etc.):

[Use Additional sheets as required]G. Other relevant information supporting the application (e.g. codes of practice or other requirements

with which the program complies, sufficient self-verified examples to demonstrate the operation of every part of the program, etc.):

I confirm that I have carried out adequate assessment on the computer program and I consider it suitable to be used to support designs for submission to the Building Authority.

Signature of Applicant (RSE*/RGE*) : .................……….................. Date : ...........….........…………. & Full Name (in block letters) : ...................………………………………….......……….................... Certificate of Registration No. : ………………………..….…… Expiry date : …………….…………

* Delete whichever is inapplicable. (Rev. 12/2005)

Appendix B (PNAP 79)

(ADM-6) Structural Computer Program Statement

BD file ref. no. : .....................................................................................

Address of site : ......................................................................................

......................................................................................

Authorized Person : .................................................................................

Registered Structural Engineer : ..................................................................

Structural computer programs used :-

Program Name BD Ref. No.

(1)†.............................................................................S.......................

(2)†.............................................................................S.......................

(3)†.............................................................................S.......................

(4)†.............................................................................S.......................

(5)†.............................................................................S.......................

(Show against each program the Methodology Adopted e.g., Elastic Theory, Load Factor, Ultimate Limit State, etc.)

The above programs were used to perform the following († insert the appropriate number from table in brackets) :- ( ) Foundation ( ) Pile cap *Analysis/Design *Analysis/Design

( ) Footing ( ) Superstructure *Analysis/Design *Analysis/Design ( ) Others (please specify) .......................................................... *Analysis/Design I confirm that I have carried out adequate assessment on the above computer programs and I consider them suitable to be used to support design for the above structural submission to the Building Authority. The information about the structural computer programs is also enclosed in pursuance of paragraph 4 of PNAP 79. Signature of RSE : ........................................ Date : ................................

& Full name (in block letters) : ....................…............................................ Certificate of Registration No. : ………………………. Expiry date : ……..……………. * Delete whichever is inapplicable (Rev. 12/2005)

Appendix C (PNAP 79) (ADM-6)

Geotechnical Computer Program Statement BD file ref. no.: ............................................................................................................................. Address of site: .............................................................................................................................. .............................................................................................................................. Registered Geotechnical Engineer: .......................................................................... Geotechnical computer programs used :- Program Name BD Ref. No. (1)† ...............................................................................................................G............................. (2)† ........................................................................................ .......................G............................. (3)†......................................................................................... .......................G............................. Above programs were used to analyse the following designs († insert the appropriate number from table in brackets) :- ( ) Earth-retaining Structures ( ) Excavation and Lateral Support Works ( ) Slope Works ( ) Others (please specify) ................................................................................................... I confirm that I am responsible for executing the geotechnical computer programs in respect of the above designs. The information about the geotechnical computer programs is also enclosed in pursuance of paragraph 4 of PNAP 79. Signature of RGE : ................................................................. Date: .....................…….............. & Full name (in block letters) : ................................................................................................…. Certificate of Registration No. : ……………...………….. Expiry date : …………...………… * Delete whichever is inapplicable (Rev. 12/2005)


Buildings Department 104 Practice Note for Authorized Persons and Registered Structural Engineers

Geotechnical Information Unit Since 1983, the Geotechnical Information Unit (GIU) has been an important source of geotechnical information for the public including authorized persons, registered structural engineers and their consultants. It is the largest and most comprehensive collection of site-specific geotechnical data in the Territory. It is operated by the Geotechnical Engineering Office and is housed within the Civil Engineering Library on the First Lower Ground Floor of the Civil Engineering Building in Homantin, between 9:00 - 12:30 and 14:00 - 16:15 on Mondays to Fridays (except public holidays). 2. The GIU holds the following material: (a) ground investigation reports including geophysical survey

reports; (b) reports on laboratory testing of soils and rocks; (c) a card index of cut slopes, fill slopes and retaining wall; (d) landslip record cards; (e) piezometric monitoring data; and (f) rain gauge records. In particular, most of the data on geology, hydrology and soil properties collected in the course of the Mid-levels Study between 1979 and 1981 are available in the GIU. 3. Retrieval of ground investigation information and laboratory test reports is accomplished using the GIU Cell Referencing System. This is based on an array of numbered cells superimposed on 1:5 000 scale survey sheets for the urban areas and 1:20 000 scale sheets for the remainder of the Territory. 4. GIU users can also consult the wide range of geotechnical literature held in the Civil Engineering Library. This includes: (a) a collection of geotechnical and geological textbooks, reports,

journals and periodicals, including reference books on ground investigation, testing and engineering standards; and

/(b) a ....

- 2 - (b) a comprehensive collection of published papers on Hong Kong

geology and geotechnical engineering. These materials are referenced by class (type) of publication and by subject matter. Retrieval is now assisted by a computerized catalogue that allows keyword searching by title or author. 5. Data from the GIU may be examined in the reading area but is not to be taken out of the library. There are photocopying facilities available at a nominal charge. 6. The GIU has a set of plans showing the locations of registerable slopes and retaining walls contained in the Catalogue of Slopes prepared by the Consultant to Government in 1977/78 and subsequently updated by the Survey Division of the Civil Engineering Department. There are also data sheets and photographs. General enquiries on the GIU should be directed to the librarian who can be contacted by telephoning 2762 5147. 7. Those who wish to obtain information from the Catalogue should fill in an application form available from District Offices and the GIU and preliminary information will be sent to the enquirer in ten days. (Helen C P Lai YU) Building Authority Ref : BD GR/OD/22 First issued May 1984 This update May 1995 (AD/SE, GGE) Index under : Geotechnical Information Unit


121

Structural Design Information

Structural submissions are ever increasing in volume of plans and complexity of calculations. To facilitate expeditious processing of submissions, plans and calculations should be clearly presented and organized as outlined below. Structural Plans 2. Structural plans should be properly indexed and each drawing should bear a drawing title and drawing number. 3. The first drawing of the set should contain general specification notes on : (a) concrete materials, including cement, aggregates and pulverized

fuel ash (if used); (b) reinforcement and other structural materials; (c) grade and characteristic strength of structural materials; (d) concrete covers, corrosion protections and fire resistance

requirements; and (e) workmanship and other particulars of method of construction. 4. There should be adequate general-arrangement drawings consisting of floor plans, sections and elevations where appropriate showing layout, dimensions, levels and identification of all structural frames and members. 5. Notes on designed imposed loads (including allowance for partitions, screeds, dynamic effects and the like) should be given on the corresponding floor plans. Where there are different designed imposed loads for different parts of the floor, the variations should be illustrated diagrammatically. 6. In alteration and addition submissions, reinforcement details of the structural members in the existing building affected by the alteration and addition works should be shown on drawings. These reinforcement details should be extracted from the original approved plans. General Building Plans 7. The information on designed imposed loads specified in paragraph 5 above should also be given on the general building plans.

/Structural …..

ADM-8 Re-issued under new categorization in August 2009 as Practice Note for Authorized Persons, Registered Structural Engineers and Registered Geotechnical Engineers

- 2 -

Structural Calculations 8. Structural calculations should be grouped into two parts, each to be properly indexed. The first part should contain essential information on the structural design of the building as given in paragraph 9 below, and is to be retained in Buildings Department (BD) for record. The second part, containing relevant details of analysis and design calculations of the structural elements, will be returned to the authorized person / registered structural engineer after the issue of the occupation permit for the building. 9. The first part of the structural calculations should contain the following: (a) a synopsis of the structural design giving -- (i) a general description of the foundation and

structural system and the basic anatomy of stability by which the applied loads are transferred to the ground;

(ii) design method, assumptions, codes used and

limitations of stresses and deformation; (b) essential information on the computerized calculations including --

(i) The name, version, developer’s name/

identification, BD reference number and validity period of the computer program used;

(ii) The scope of application of the program which is accepted by BD and a list of the limitations in application;

(iii) Assumptions made and justifications on parameters used in the computer model e.g. material properties, boundary conditions etc.;

(iv) Input data with computer-generated graphics or hand sketch showing the framing & layout of the structure, nodes & elements, joint fixity etc.;

(v) Summary of salient output results e.g. the design envelopes of moment, shear, displacement of the most critical cases for the design and check of the applied forces against the output overall reaction;

(vi) The interpretation and application of the computer output in the design;

/(c) …..

- 3 -

(c) essential information on the design to resist wind load, including – (i) a general description of the wind-resisting system

and mathematical modelling; (ii) diagrams illustrating the location and identification

of all structural frames and members in the wind-resisting system;

(iii) a summary of sectional properties of wind-resisting

elements; (iv) a summary of wind loads applied to the building

and the distribution of the wind forces on individual frames at each floor level;

(v) principal reactions (moments, shear forces and

axial forces) in the wind-resisting elements; and (vi) a summary of equilibrium check on applied lateral

forces and calculated reactions of vertical structural members at foundation and other critical levels where there is a major change in structural configuration;

(d) essential information on the design to resist dead and imposed

loads, including -- (i) the design data on dead and imposed loads

(including allowance for partitions, screeds, dynamic effects and the like); and

(ii) a summary of principal reactions (moments, shear

forces and axial forces) in vertical structural members at foundation and all floor levels;

(e) details of the design of major transfer members where the failure

of which would induce cumulative instability; and (f) details of the design of cantilevered canopies, balconies and major

structural appendages.

/Documents …..

- 4 -

Documents Submitted 10. Appendix A is a list of documents and plans required to be included in the structural submission. This list is not exhaustive and more information may be required for individual consideration. ( H W CHEUNG ) Building Authority Ref.: BD GP/BREG/A/12 First issue July 1986 Last revision April 1995 This revision September 2002 (AD/NB2) - Para. 9(a)(iii) deleted and a new para. 9(b) added Index under : Structural Design Information Structural Submissions

-----

Appendix A (PNAP 121) (ADM-8) Check List on Documents for Inclusion in Structural Submissions PART 1 - GENERAL INFORMATION BD Ref. No.: ___________ Address of Site: ____________________________________ Lot No.: __________ Authorized Person: ________________________ Registered Structural Engineer: _________________________ Type of Submission (tick as appropriate): New Building ; Alternation & Addition Works ; First submission ; Resubmission upon refusal ; Revision/Amendment Type of Works (circle or state type): Foundations -- Ground Investigation; Driven Piles; Small Diameter Bored Piles (not exceeding 750mm);

Large Diameter Bored Piles (over 750mm); Barrettes; Spread Footings; Rafts; Pile Caps; Others _______________________________________________________________________________

Earth-retaining, Excavation and Lateral Support Works -- Retaining Walls; Sheet Piling; Piled Walls; Panelled Diaphragm Walls; Lateral Support Details;

Other Shoring System __________________________________________________________________ Underground Structures -- Basement; Others ______________________________________________________________________ Superstructures -- Main Structure; Curtain Walls; Others _____________________________________________________ PART 2 - DOCUMENTS SUBMITTED (tick as appropriate) Yes N/A

Plans (2 signed sets for BA approval)

Design Calculations (Part I, No. of Vol. )

(Part II, No. of Vol. )

Ground/Site Investigation Report (2 sets)

Appraisal Report on Adjacent Buildings

Geotechnical Report

Form BA 4 (Appointment of AP/RSE)

Form BA 5 (Application for approval)

Form BA 6 (Stability Certificate)

Form BA 16 (Application for exemption/modification)

Form BA 17 (Temporary building)

Payment of Fees (for structural alteration & addition works)

/cont'd .....

- 2 -

PART 3 - ADDITIONAL PLANS FOR REFERRAL

Does proposal involve or affect the following?

Yes No If yes please indicate the number of additional set(s) of plans for referral to each of the relevant organization

Schedule Area No. 1, 2 or 4 Geotechnical Engineering Office

Schedule Area No. 3 or MTR Protection Area

Mass Transit Railway Corporation

Schedule Area No. 5 (a) Geotechnical Engineering Office; and (b) Drainage Services Department

Slopes/Retaining Structures/Deep excavation/disused tunnel

Geotechnical Engineering Office

Culvert, nullah, stream course (a) Geotechnical Engineering Office; and (b) Drainage Services Department/Project Manager, Territory Development Department for New Territory area

Kowloon Canton Railway route protection area or proposed rail routes

Railway Division, Highways Department

Light Rail Transit Light Rail Division, Kowloon Canton Railway Corporation

Chek Lap Kok Airport (a) Civil Aviation Department; and (b) Civil Engineering Department

Structures to be erected in, over, under or upon street

(a) Lands Department; and (b) Highways Department

Highway Structures Highways Department

Sea walls, adjacent to sea front Port Works Division, Civil Engineering Department

Reclamation, piers (a) Marine Department; and (b) Port Works Division, Civil Engineering Department

Public drainage Drainage Services Department

Water mains Water Supplies Department

Total no. of sets of additional plans for referral: _______________________ _______________________________________ Date Signed (AP/RSE, Name in full) Ref.: PNAP 121 First issue April 1995 This revision September 2002


127


Colouring of Plans Building (Administration) Regulation 14(3) requires that one copy of every plan submitted for approval shall be coloured in order to clearly differentiate existing work from proposed new work and one part of any proposed new work from other parts. 2. For consistency in the use of colour, AP/RSE/RGE are advised to adopt BS 5252:1976, “Framework for colour co-ordination for building purposes” as the standard and the preferred colours are as shown in Appendix A. 3. BS 5252F “Colour matching fan” contains 64 mm square patches of all the colours in the BS 5252 framework and should be used in conjunction with the colour cards produced by drawing material manufacturers in order to select the best possible match within their range of products. 4. For amendments to the approved works, authorized persons (AP)/ registered structural engineers (RSE)/registered geotechnical engineers (RGE) are strongly requested to colour or otherwise identify the proposed works from the approved works, with identical colouring or other means, on all sets of plans submitted to the Buildings Department to facilitate the vetting of the plans. 5. The use of these recommended colours and the differentiation of proposed works from existing/approved works on all sets of amendment plans will expedite the processing of plans and is therefore clearly in the interests of all parties.


Ref. : GP/BREG/A/14 First issue March 1988 Last revision January 1990 This revision August 2006 (AD/NB1) (General Revision) Index under : B(A)R 14(3) - Colouring of Plans Colouring of Plans - B(A)R 14(3)

Appendix A Preferred Colours

Material Preferred Colour

BS 5252 Identification Code

Earth (unexcavated) Hardcord or dry fill Brick Concrete (plain or reinforced) Solid Concrete Blocks Hollow Concrete Blocks Lightweight Partition (e.g. Plasterboard) Plaster or Cement Rendering Mosaic or other non-absorbent floor tiles Mosaic or other non-absorbent wall tiles Glass Timber doors Metalwork Steel Sanitary fittings Provision for the disabled e.g. toilets, lifts, ramps

Fawn Brown Red Green Blue Mauve Orange Magnolia Pink Lemon Blue Brown Grey Purple Yellow Green

06 C 33 06 C 39 04 E 55 14 E 53 20 E 56 24 E 53 06 E 55 08 E 49 02 C 33 10 E 50 20 E 50 06 D 44 00 A 03 24 C 39 10 E 55 12 E 53

Notes : 1. Ducts, light-wells and lift shafts should be left uncoloured.

2. For elevations and the larger plan areas, colouring may be in lighter washes of the preferred colours in order to avoid a garish effect e.g. concreted, tiled or plastered areas.

3. A light colour wash should be used to identify phased development.

4. A colour legend or key should be added to all sets of drawings.


Buildings Department Practice Note for Authorized Persons and Registered Structural Engineers 135

Imaging Standards for Plans

The Buildings Department (BD) has installed a microfilm record storage system for approved building plans to eliminate possible loss of information due to deterioration of the quality of print records and for better record archival. Approved plans between 1970 and 1990 have been microfilmed. In addition, BD is now exploring the development of a Building Record Management System based on electronic images of approved plans. 2. This practice note seeks your cooperation in ensuring that the quality of plans submitted for approval is suitable for microfilming or electronic imaging so that the images produced will be clear and intelligible to all future users. 3. Under some conditions, quality may improve in the imaging process. It is however expected that some loss of quality may also occur in any reproduction process. To ensure the quality of images produced, attention to particular aspects of the preparation, amendment and handling of plans to be microfilmed or electronically imaged is necessary.

4. Appendix A gives some guidelines on drawing standards suitable for imaging. Please adopt these standards for all plans submitted for approval. 5. This recommended practice does not affect consideration of plans. They will continue to be processed in accordance with the requirements of the Buildings Ordinance. Non-conformity with any of the guidelines referred to in this practice note will not constitute a ground for disapproval of the plans. We would, however, appreciate your adopting of the recommended practice. 6. For the purpose of this practice note, the term "plans" means building plans, drainage plans, site formation plans, structural plans and the calculations referred to in paragraphs 8 and 9 of PNAP 121.

(C M LEUNG) Building Authority

Ref. : BD GR/OA/l2 BD GR/OA/177 First issue June 1990 Last revision April 1994 This revision December 2000 (AD/Support) – generally revamped Index under : Imaging Standards for Plans Plans - Imaging Standards


(ADM-10) Guidelines on Drawing Standards (1) Plan sizes A0 1189 mm x 841 mm A1 841 mm x 594 mm A2 594 mm x 420 mm A3 420 mm x 297 mm A4 297 mm x 210 mm The dimensions are those of the outside edges of the sheet. A border is normally

drawn inside the dimensions (limiting the actual drafting area). Plan sizes larger than A0 should be avoided.

(2) Borders Unused minimum borders should be provided on all 4 sides of an original as

follows : A0 - 20 mm A1 - 20 mm A2 - 10 mm A3 - 10 mm A4 - 10 mm (3) General Standards (a) Centre mark should be shown at the centre of each side of the drawing

frame; (b) Matt surface is desirable, with adequate contrast between drawing matter

and background. The prints should therefore be of good quality; (c) Each plan should bear a unique drawing number.

(d) The version of a plan should be annotated by suffix (Rev.A), (Rev.B) etc. to the drawing number.

(e) The drawing title should describe clearly the contents of the plan including

location and type of works. (f) All notes should be read from the same direction (NB: This does not

include dimensions);

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(g) A suitably numbered or graphic scale should be provided, corresponding to

the scale of the plan; (h) At least one plan should carry a legend of all markings and symbols shown

or used, preferably on the right hand side of the plan; (i) It should be borne in mind that colours will not be identifiable on images.

Consequently, materials and elements of construction, in addition to being coloured in the usual manner, should where necessary be identifiable by other suitable means for imaging purposes e.g. usual method of hatching or annotations (rc, br, ms and the like); and

(j) Lettering and numbering should not be covered by heavy hatching, dark

shading or dark colouring. (4) Space for Official Use A minimum unused space of 90 mm wide by 70 mm high, to accommodate the

official stamp of approval by the Building Authority, should be provided on every plan, preferably at the lower right corner.

(5) Plan Index Applications for occupation permits should be accompanied by a Plan Index which

lists all the approved plans. The Plan Index will be imaged and should therefore be in one of the "A" sizes and a separate Plan Index should be prepared for each category of approved plans e.g. building, structural, drainage and so on.

The contents and format of the Plan Index should be as follows :

Building Plan Index

BD DWG NO. AP/RSE DWG. NO. DESCRIPTION APPROVAL DATE (For BD use) B/1 G/F Plan 2.5.2000 * B/2 1/F Plan 2.5.2000 B/3 Typical Floor plan 2.5.2000

# # # * B/1 (Rev.A) G/F Plan 8.9.2000 * B/3 (Rev.A) Typical Floor Plan 8.9.2000

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Structural Plan Index

BD DWG NO. AP/RSE DWG NO. DESCRIPTION APPROVAL DATE (For BD use) * S/1 General Details 3.6.2000 S/2 G/F Framing Plan 3.6.2000 * S/3 1/F Framing Plan 3.6.2000 # # # * S/2 (Rev.A) G/F Framing Plan 4.9.2000

Drainage Plan Index

BD DWG NO. AP/RSE DWG NO. DESCRIPTION APPROVAL DATE (For BD use) * D/1 Drainage Notes & 10.6.2000 Block Plan D/2 Schematic Diagram 10.6.2000 * D/3 Schedules & Layouts 10.6.2000 # # # * D/2 (Rev.A) Schematic Diagram 6.9.2000

An asterisk (*) should be used to identify the latest approved plans which represent

the building as completed. This procedure is in addition to the record plan system and will be reviewed in the

light of experience. (Rev. 12/2000)

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152


Change of Address Building (Administration) Regulation 45 requires that every authorized person, registered structural engineer and registered geotechnical engineer shall in the specified form notify the Building Authority of any change in the address at which he carries on business, within 14 days thereof. 2. The form specified for such purpose is Form BA 24 (cf PNAP 159) and should be sent to : Registration Registry Buildings Department 12/F-18/F Pioneer Centre 750 Nathan Road Mongkok Kowloon Hong Kong

( H W CHEUNG ) Building Authority

Ref. : BD GP/AP/1 (II) First issue January 1992 Last revision March 1997 This revision December 2005 (AD/Sup) (RGE included) Index under : B(A)R 45 - Change of Address Change of Address - B(A)R 45


Buildings Department 154 Practice Note for Authorized Persons and Registered Structural Engineers

Submission of Record Plans for Alteration and Addition Works Building (Administration) Regulation 46

In the discharge of public duties relating to Government rent and rates, the Commissioner of Rating and Valuation requires one set of record plans for completed alteration and addition works. 2. To ensure that the Commissioner's records are correct and up-to-date, please provide two sets of record plans when submitting a certificate (Form BA 14) on completion of building works not resulting in a new building to this department. On receipt of the record plans, the Buildings Department will arrange onward transmission of one of the sets to the Rating and Valuation Department.

(CHOI Yu-leuk) Building Authority

Ref. : BD GP/BOP/23 BD GR/OP/4/M First issued October 1992 (AD/D) This revision March 1998 Index under : Record Plans for Alteration & Addition Works


ADM-13

Monitoring for Site Safety and Quality Aims and Functions The Site Monitoring Section (SMS) of the Buildings Department aims to enhance the safety and quality of building works on construction and demolition sites by a programme of systematic inspections. Staff of SMS will visit sites to focus on unsatisfactory aspects which may have impact on or interface with public safety and quality. Matters of concern in this context include :

(a) divergence or deviation in a material way from approved plans;

(b) use of defective materials ;

(c) absence of adequate precautionary measures;

(d) lack of supervision by the persons responsible;

(e) departure from approved or agreed work sequence or procedures;

(f) inadequacy of experience of workmen or plant operators for specially hazardous operations;

(g) non-compliance with conditions imposed or orders issued by the Building Authority; and

(h) contravention of provisions of the Buildings Ordinance or subsidiary legislation.

The object is to enhance safety and quality assurance by encouraging responsible attitudes on site and deterring dangerous operations. 2. Where necessary, the SMS will advise the authorized person, registered structural engineer or registered geotechnical engineer of corrective action on unsatisfactory aspects likely to have safety-related consequences. Other remedies and sanctions, including the service of orders under section 23 and 24A of the Buildings Ordinance, prosecution and disciplinary action will be considered where appropriate in the light of the circumstances of individual cases. Inspections 3. SMS inspecting officers will inspect sites more frequently where the works, the construction stages or the operations pose higher risks to life and limb. Examples are demolition, deep excavations, percussion piling, formation of steep slopes, construction of high retaining walls, works projecting over public thoroughfares and operation of heavy powered mechanical plant.

/4. …..

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4. All SMS inspecting officers will carry a warrant card with authorisation by the Building Authority to :

(a) inspect any premises and enter upon any land;

(b) ascertain whether the provisions of the Buildings Ordinance are being complied with; and

(c) carry out tests, make openings and take reasonable samples for the purposes of the Buildings Ordinance.

Co-operative Efforts 5. Authorized persons, registered structural engineers and registered geotechnical engineers are expected to co-operate in the interest of public safety and quality by ensuring that :

(a) ready access to sites is provided to SMS staff;

(b) copies of all approved plans, agreed work sequence and procedures and all conditions imposed by the Building Authority are issued to registered contractors to keep on site;

(c) copies of all prescribed plans, details of the works and supervision plans (as may be required) for minor works are issued to prescribed registered contractors to keep on site of the minor works;

(d) all approved or agreed work sequence and procedures and all conditions imposed or orders issued by the Building Authority are properly explained to registered contractors, where necessary, with translations provided;

(e) requirements on supervision of building and demolition works are met;

(f) adequate precautionary measures are provided, particularly with regard to falling objects at sites;

(g) any contravention resulting from the carrying out of works is notified to the Building Authority as soon as possible; and

(h) unsatisfactory aspects of work sites and building works are rectified without delay.

Interface with Others 6. Inspections in connection with approval of plans, issue of consent, permits, licences and occupation permits and performance tests of building materials, structural elements and systems will continue to be carried out by staff of the New Buildings Divisions of the Buildings Department.

/7. …

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7. In the event of the SMS inspecting officers identifying contravention of safety or quality requirements not falling within the ambit of the Buildings Ordinance, they will refer the cases to the appropriate government department for consideration of follow up action. Minor Works carried out in accordance with the Simplified Requirements 8. Minor works carried out in accordance with the simplified requirements (i.e. involving submitted plans instead of approved plans) are small scale with short construction period. Hence instead of a programme of systematic inspections for construction and demolition sites with approved plans, selected cases of minor works under construction will be subject to audit site safety inspections. The matters of concerns, remedies and sanction, cooperative efforts and interface, etc. described above are generally applicable, with the extent depending on the circumstances of individual minor works cases. Common Concern 9. Maintenance of site safety and quality demand the joint efforts of all parties concerned. Please bring this practice note to the attention of your clients and the registered contractors they appoint. 10. A similar practice note is issued to registered contractors. ( AU Choi-kai )

Building Authority Ref : BD GR/1-50/48/0 This PNAP is previously known as PNAP 186 First issue September 1995 Last revision February 2006 This revision December 2010 (AD/NB2) – para. 4(c) amended, paras. 5(c) & 8 added


ADM-14

Minor Amendments to Plans and Specified Forms

To facilitate processing of plans which are considered by the Buildings Department (BD) as approvable under the Buildings Ordinance (BO) subject to minor amendments, authorized persons (APs), registered structural engineers (RSEs) and registered geotechnical engineers (RGEs) would be allowed to make minor amendments to such plans and relevant specified forms with BD's prior agreement. This Practice Note sets out the related procedures. Procedures 2. With immediate effect, the procedures for making minor amendments to plans which are approvable under the BO subject to such amendments and other relevant specified forms already submitted to BD are as follows :

(a) Amending plans and specified forms in BD It is usual practice for BD staff to conduct an interview with

the design team from AP/RSE/RGE to clarify queries on the submissions prior to minor amendments to the plans. AP/RSE/RGE may amend the plans and specified forms in BD and authenticate the amendments by his signature.

Should clarification be required on the work the design of

which has been prepared by specialist or proprietary contractors such as glazing works, cladding and curtain wall works, foundation works and hoarding works, the AP/RSE/RGE or his competent representative who understands the entire project is always encouraged to attend the interview with the specialist or proprietary contractor for better co-ordination and prompt resolution of interface problems raised by BD.

(b) Substituting sheets and specified forms

AP/RSE/RGE may amend the plans by handing in substitute sheets with all the amendments clearly annotated and individually authenticated. Such amendments should first be agreed with the case officer and the substitute sheets should reach him on a date to be agreed with him, in any case not more than two working days from the date the AP/RSE/RGE approaches the case officer.

/ AP/RSE/RGE …..

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AP/RSE/RGE may replace the specified forms by handing in substitute ones. Such substitution should first be agreed with the case officer.

(c) Taking away part of the submission and specified forms

AP/RSE/RGE may request in writing the removal of part of a

submission of plans or specified forms. Such request should specify the reference or number of the plans or the specified forms to be taken away and must contain an undertaking to return the amended plans or specified forms in not more than two working days. The precise date of return should be agreed with the case officer beforehand. The amended plans or the specified forms should be clearly annotated and individually authenticated.

3. In the case of (b) and (c) in paragraph 2 above, the return must always be before the due date for processing of the submission. If the plans and/or specified forms for amendment are not returned to the case officer on the agreed date, the submission will be disapproved under sections 16(1)(i) and/or 16(1)(c) of the BO on the grounds that not all the plans as are prescribed by regulations and/or the required specified forms have been submitted. 4. For amendments that may have implication under the lease conditions, an extra copy of the plans with amendments clearly annotated/coloured together with a Development Schedule to indicate the alterations/changes and the extent of compliance with the lease conditions should be submitted for onward transmission to the Lands Department for consideration. Examples of such amendments may include exclusion of floor space from gross floor area (GFA) calculation, conversion of floor space accountable for GFA calculation into back-of-the-house facilities for hotel etc. 5. The above procedures aim to facilitate and will be reviewed from time to time. BD expects co-operation from all APs, RSEs and RGEs using the facility. In the event of abuse or operational difficulties, the procedures will be modified or cancelled. ( AU Choi-kai )

Building Authority Ref. : BD GP/BOP/6 (XII) This PNAP is previously known as PNAP 190 First issue December 1995 Last revision April 2002 This revision November 2010 (AD/NB1) - general revision and to include RGE


200


ADM-15

Submission of Site Formation Proposals

In order to facilitate and expedite the processing of a site formation proposal and also to delineate clear responsibilities, Buildings Department adopts a system which provides for the parallel processing of site formation details and structural details in the proposal. Splitting of submissions 2. A proposal for site formation works may be split into two parts and submitted in two separate sets of plans :

Part A Site formation details - These should include the layout and details of slope works and associated drainage works as well as the general layout and size of earth retaining structures, if any, as per B(A)R 8(1)(bb).

Part B Structural details - These should include the

structural details of earth retaining structures. Preparation and signing of plans 3. The Authorized Person (AP) or the Registered Geotechnical Engineer (RGE) of a project will be responsible for co-ordinating the preparation and signing of Part A and the Registered Structural Engineer (RSE) for Part B. In this connection, you should refer to the details prescribed in B(A)R 12 regarding the responsibilities and the scope of work for each party and Task 4 of Appendix B in PNAP 294. Sequence of submissions 4. Parts A and B of site formation proposals may be submitted simultaneously or Part A may be submitted first followed by a submission of Part B when it has been demonstrated that the soil-structure interaction can be prescribed. It will also be acceptable to submit a sufficient number of complete sets of proposals if one set is clearly marked as Part A submission and another Part B submission. Simple submissions 5. For some simple site formation proposals, splitting may not be necessary and a single submission may be allowed. The following are some examples of simple site formation proposals :-

/Site ....

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• Site formation works involving simple earth retaining structures.

• Small scale site formation works such as those for NT

exempted houses. • Drainage systems for slopes involving box culverts and/or

other drainage structures such as sand traps, catch-pits and stormwater manholes, if no major earth retaining structures are involved.

Number of plans and supporting information to be submitted 6. AP/RSE/RGE should make sure enough sets of plans with essential information are submitted for the necessary consultation with the government departments and public authorities concerned. In this connection, you are reminded of PNAP 30, 121 and 294.

( H W CHEUNG ) Building Authority

Ref. : BD GP/BOP/34 BD GP/BORD/75 First issue October 1996 This revision December 2005 (AD/Sup) (Paras.3 & 6 amended) Index under : Submission of site formation proposals Splitting of submissions

Re-issued under new categorization in August 2009 as Practice Note for Authorized ersons, Registered Structural Engineers and Registered Geotechnical Engineers ADM-16 P


225

Ground Investigation Works in Scheduled Areas - Approval and Consent

Ground investigation in the Scheduled Areas is building works and requires approval and consent under the Buildings Ordinance. Concurrent Processing of Applications 2. Procedures are in place in Buildings Department for concurrent processing of applications for approval and consent in respect of new ground investigation works in the Scheduled Areas. Procedures 3. If you wish to take advantage of the concurrent processing option, you should

(a) submit a site supervision plan together with the ground investigation plans; and

(b) indicate in your covering letter that you wish to take

advantage of the concurrent processing option and submit an application for consent after the 32nd day of the submission of plans for approval.

( H W CHEUNG ) Building Authority Ref : GR/1-50/74/0 First issue July 1998 This revision February 2006 [AD/NB2 and Deputy Head of GEO (Island)] (Paragraph 3(a) revised) Index under : Ground Investigation in Scheduled Areas


ADM-17

Submission of Documents in Electronic Format Introduction The Electronic Transactions Ordinance (ETO) (Cap 553) was enacted to facilitate the use of electronic transactions for commercial and other purposes. It gives electronic records and digital signatures used in electronic transactions the same legal status as that of their paper-based counterparts. 2. The ETO provides that if a rule of law requires information to be given in writing, an electronic record satisfies such requirement if the information is accessible so as to be usable for subsequent reference (s.5 of ETO). In addition if the signature of a person is required on the information, a digital signature of the person satisfies such requirement if the digital signature is supported by a recognized certificate and is generated within the validity of that certificate (s.6 of ETO). 3. These provisions of the ETO for legal recognition of electronic records and digital signatures in relation to rules of law and admissibility of electronic records as evidence in court have come into operation since 7 April 2000. Further details on the ETO are available at the web site of the Office of the Government Chief Information Officer (OGCIO) www.ogcio.gov.hk. As far as these provisions as applicable to the submissions made under the Buildings Ordinance (BO) are concerned, the Buildings Department (BD) has made the following arrangements. Simple Submissions under the Buildings Ordinance 4. BD has set up an e-Counter to receive simple submissions in electronic format under the BO. Simple submissions are those that do not involve voluminous documents, customized program or large size professional drawings; for example, printout paper of size not larger than A3 or electronic file of size not exceeding 10 MB.

Exemptions 5. Before a suitable infrastructure is established in BD to receive and handle all submissions in electronic format, submissions that involve voluminous documents, attachment of original supporting documents, or large size professional drawings are exempted from the operation of the ETO for the time being. Details of the exemptions are set out in Appendix A. Although exemption under ETO has been granted, certain specified forms such as Form BA21 can be accepted in electronic format as long as the submission complies with the Format, Manner and Procedure given in paragraph 6 and Appendix B. Acceptable specified forms for electronic submission can be downloaded from BD's web site www.bd.gov.hk.

/Format, …..

- 2 - Format, Manner and Procedure 6. With the exception of those submissions under the exempted provisions, electronic submissions under other provisions of the BO (i.e. simple submissions referred to in paragraph 4 above) can be sent through electronic mail to BD’s e-Counter at [email protected]. Unless otherwise specified, email sent to [email protected] will be considered to be sent to the Buildings Department’s designated information system for the purpose of receiving electronic records, as mentioned in section 19(2) of the ETO. The identity of the person making an electronic submission has to be authenticated by a digital certificate issued by the Postmaster General or other certification authorities recognized by the Government Chief Information Officer under the ETO. Detailed information on such e-certificate and its application procedures are available at the web site of Hongkong Post www.hongkongpost.gov.hk. 7. The Permanent Secretary for Commerce and Economic Development (Communications and Technology) has published in the gazette the format, manner and procedure for the acceptance of electronic information by virtue of the ETO. Relevant extract of the gazette notice is provided at Appendix B. Failure to observe the gazetted format, manner and procedure will invalidate the submission. 8. The requirements and procedures for electronic submissions under the BO are also published at BD’s web site www.bd.gov.hk. The templates for specified forms under the BO are available for download. To facilitate understanding on the stipulated format, manner and procedure, an explanatory note for layman is also available at BD’s web site. Plan for the future 9. BD will keep in view the development of an electronic submission system (ESS) to handle all types of electronic submissions. The exemptions granted under the ETO as detailed in Appendix A will be rescinded when the ESS is fully established. ( AU Choi-kai )

Building Authority Ref.: BD TS/6-15/6 This PNAP is previously known as PNAP 240 First issue May 2000 Last revision March 2008 This revision August 2010 (AD/Sup) – (Paragraphs 4, 5, 6, & Appendix B amended)

Appendix A (PNAP ADM-17)

Exemptions of the Buildings Ordinance from Operation of the Electronic Transactions Ordinance

1. Provisions Excluded from Application of Section 5 of the Electronic Transactions Ordinance 1.1 Buildings Ordinance Sections 8B(1), 8C(2), 8D(2),

17(1)(Column B), 19(1), and (4), 20(2), 21(2), 25(1) and 42(2)

1.2 Building (Administration) Regulations

Regulations 6(1), 11, 18(1), 18A, 23(1A) and (2), 29(1), 31(1), 33(1), 38 and 47

1.3 Building (Planning) Regulations Regulations 51(1), 53(1) and 64(1) and (2)

1.4 Building (Private Streets and Access Roads) Regulations

Regulation 28

1.5 Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations

Regulations 62(1) and 73(1)

1.6 Building (Oil Storage Installations) Regulations

Regulations 6(1) and 10(2)

2. Provisions Excluded from Application of Section 6 of the Electronic Transactions Ordinance 2.1 Building (Administration)

Regulations Regulations 12(1), (2), (3) and (5), 18(2),

20(1), 25(2), (3) and (4), 26(2) and 28

(Rev. 3/2008)

Appendix B (PNAP ADM-17)

Format, Manner and Procedure for the Acceptance of

Electronic Information by virtue of the Electronic Transactions Ordinance

1. General Requirements for electronic records

Pursuant to section 11(2) of the Electronic Transaction Ordinance, the Permanent Secretary for Commerce and Economic Development (Communications and Technology) may specify by notice published in the Gazette the format, manner, procedure and criteria of the electronic records acceptable for electronic submission. The current Gazette Notice in force is G.N. 8137 dated 18 December 2009, URL is http://www.gld.gov.hk/cgi-bin/gld/egazette/index.cgi

2. Electronic Submission to the Building Authority

For submission to the Building Authority made under the Buildings Ordinance (Chapter 123) and its subsidiary legislation, the electronic records are only acceptable when they are sent as attachments in a digitally signed email and are in the manner and format as follows: (a) electronic records of specified forms shall be in Adobe Portable

Document Format (PDF) with the digital signatures properly applied onto the specified locations of the specified forms; and

(b) other electronic records shall either be:

(i) in Adobe Portable Document Format (PDF), and each

separated page of the documents shall not be larger than A3 size, and each document shall be associated with a digital signature; or

(ii) in Tag Image File Format (TIFF) or in Joint Photographic

Experts Group (JPEG), the respective lengths of the two adjacent sides of the image of each document in a resolution of 200 dpi shall not be greater than 3300 pixels x 2340 pixels, and 24-bit colour depth for document in colour, and each document shall be associated with a digital signature.

. (Rev. 8/2010)


ADM-18

Site Auditing for Building Works

Introduction This practice note provides details of the strategy on auditing building works by the Buildings Department (BD). 2. The Building Authority is empowered by section 22 of the Buildings Ordinance to enter building sites to ascertain whether the Buildings Ordinance and its subsidiary regulations are being complied with. It is BD's intention to exercise this power strategically so as to facilitate Authorized Persons (APs), Registered Structural Engineers (RSEs), Registered Geotechnical Engineers (RGEs), Registered General Building Contractors, Registered Specialist Contractors and Registered Minor Works Contractors in carrying out their statutory supervisory duties. The strategy on site auditing helps to bring to light structural safety-related irregularities or procedures and practices conducive to substandard building works before they become very costly or impossible to put right. The Strategy 3. The strategy for auditing building works, which focuses on compliance with requirements of the Buildings Ordinance and regulations, includes surprise checks without prior notification and encompasses the following features -

(a) Expansion of the scope of audits to include detailed checking of foundation and superstructure works;

(b) A performance-based approach to frequency of audit checks;

(c) Removal of predictability from timing of audit checks;

(d) Separation of submission-checking and auditing functions;

(e) Rotation of auditing staff; and

(f) Investigative focus on structural safety and integrity. Scope of Audits 4. The scope of auditing the foundation and superstructure works includes detailed monitoring of the items shown in Appendix I.

/Frequency…..

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Frequency of Audits 5. A performance-based approach is adopted to determine the frequency and timing of audit checks. On the initial auditing visit to a building site, various factors including its conditions, complexity of development, on-site organization of the registered contractor (RC), qualified supervisory personnel in attendance by AP, RSE, RGE and RC, completeness of documentation kept on site and quality of the works completed to date will be rated accordingly. The rating will be used to determine the initial frequency of subsequent auditing inspections. The general principle will be that, as the works progress, the timing of the next auditing will be decided upon having regard to the standard of building works discovered in the last auditing. If the site is posing particular difficulties, or anomalies are discovered, or the quality of works has proved to be substandard, then the next auditing will be carried out earlier than it would otherwise have been. 6. The auditing officer will have the discretion to determine the proportion of works and items for inspection as appropriate in the circumstances of each site. That is, the percentage and building works components subject to auditing depend on the nature of the various stages of building works on a case-by-case basis. A flow chart for the performance-based site auditing approach is shown at Appendix II. Timing of and Personnel Assigned to Audits 7. Site auditing is most effective as a deterrent to malpractice if it is unpredictable in terms of frequency and timing of inspections, the work to be inspected and the personnel assigned to the inspections. 8. Any construction sites that are in progress or have been completed are liable to be audited by BD. There will be no pre-determined percentage of structural units, or specific items, to be audited on each site. Generally, there will be no pre-arrangement with the AP/RSE/RGE/RC on the date and time of inspection. 9. As regards personnel assigned to site auditing work including quality and site safety, BD institutes arrangements to ensure that the officer assigned to audit a particular site is neither the officer who processes the documentary submissions in respect of that site nor the officer who carried out the previous inspection. Internal mechanism is in place within BD to ensure consistency and fairness of auditing and to monitor the overall progress of the site auditing programme.

/Minor…..

- 3 -

Minor Works carried out in accordance with the Simplified Requirements 10. Minor works carried out in accordance with the simplified requirements (i.e. involving submitted plans instead of approved plans) are small scale with short construction period. Hence instead of a programme of systematic inspections for construction sites with approved plans, selected cases of minor works under construction will be subject to audit site safety inspections. Since minor works items may involve certain items in the first column of Appendix I, like spread footing, reinforced concrete, in-situ concrete and cantilever canopy, please also note the corresponding aspects subject to audit and objective/concern in the second and third columns thereof. Investigation of Anomalies 11. BD will examine carefully all anomalies found during site audits but investigation will focus on anomalies that affect structural safety and integrity or that occurring frequently. The overall effect and extent of seriousness of such anomalies will be examined and consideration will be given to whether the anomaly has occurred inadvertently or otherwise. Impact on the Construction Industry 12. The strategy for auditing the building works entails more extensive and rigorous on-site checking by BD. This should not be interpreted as any intention of BD to impede construction works or interfere with project management. Normal site operations will not be interrupted if building works are carried out properly. BD intends to work closely with the industry in enhancing the built quality and safety of buildings. 13. A similar practice note is issued to all registered contractors. ( AU Choi-kai )

Building Authority Ref. : BD GR/1-50/45 This PNAP is previously known as PNAP 254 First issue April 2001 Last revision February 2006 This revision December 2010 (AD/NB2) – paras. 2, 6 & 9 amended, para. 10 added,

previous paras. 3(g) & 11 deleted

Appendix I (PNAP ADM-18)

Foundation Things to be audited Objective/concern Driven piles (A)Materials - Steel H-pile Mill certificates Proof yield stress

- Precast prestressed Spun concrete pile

Origin Recognized type

Physical dimensions Compliance with approved plans

- Welding electrode Grade of electrode Ensure splice joint strength (B)Supervision

personnel

- RSE, RGE & RSC

Presence of qualified supervisory staff

Compliance with Site Supervision Plan

(C)Final Stage of Piling operation

- Diesel hammer Sufficient driving energy and final set

Ascertain piles are driven to suitable founding stratum, complying with approved plans

- Hydraulic hammer

-ditto- -ditto-

- Drop hammer -ditto- -ditto-

(D)Documentation - Ground

Investigation Pile tip founding material Ensure founding stratum is

able to sustain the designed load.

- Piling record of completed works

Final set and founding level Consistency of the as-built level and ground investigation borelog.

Excavation piles (A)Materials - Bored pile Grade of concrete, mill

certificate for reinforcement Compliance with approved plans

- Mini-pile Grade of grout, mill certificate of reinforcement, coupler

-ditto-

- Socket H-pile Grade of grout and mill certificate of Steel section

-ditto-

- 1 –

(B)Supervision personnel

- RSE, RGE & RC Presence of qualified supervisory staff

Compliance with Site Supervision Plan

(C)Completion of excavation

- Bored pile Pile depth, diameter, bell-out size

Ensure bored piles are constructed in accordance with the approved plans.

Actual founding material and pre-drill records

Consistency of founding materials

- Mini-pile & socket H-pile

Pile depth, dip angle for raking pile

Ensure mini-piles are constructed in accordance with the approved plans

Spread Footing - Raft/spread

footing Bearing stratum Ensure suitability of founding

material

Physical dimensions Compliance with approved plans

Superstructure Things to be audited Objective/concern

(A)Reinforced concrete

Hammer test to structural elements

Concrete strength

Select samples of reinforcing bars for tensile test

Tensile strength

(B)In-situ concrete Coring tests Strength of in-situ concrete

(C)Critical elements

- Transfer plate Document showing RSE’s acceptance on falsework design by RGBC

Ensure the stability of falsework

Concreting sequence Instability of falsework

- Prestressing member

Prestressing profile Compliance with the approved plans

Grout vent Ensure no air entrapped

- Cantilever canopy Location of construction joint and cover

Ensure safety

(D)Curtain wall & Glass wall

Member size, shape and grade Compliance with approved plans

Cast-in anchors -ditto-

- 2 -

Appendix II (PNAP ADM-18)

Overall Performance Satisfactory?

Note: 1. Foundation 1 month after commencement of piling works 2. Superstructure

3 months after commencement of superstructural (S/S)works

2 m

onth

s for

foun

datio

n 4

mon

thsf

orS/

S

Yes

Yes

BD determines less

frequent site auditing

Initial Auditing (see Note)

Site Auditing

Audited building works

acceptable?

Next Site Auditing


acceptable?

End

BD determines more

frequent site auditing

Site Auditing


acceptable?

Yes

No No

No

2 m

onth

s for

S/S

Performance-based Site Auditing

Completion of all structural

components

Yes

No

No

Yes

1

1

2m

onth

sfor

foun

datio

n

4 m

onth

s for

S/S

1 m

onth

for f

ound

atio

n



272

Re-engineering the Building Approval Process

Mission Buildings Department (BD) is committed to adopt a totally positive attitude towards building development. 2. Its mission is not to find faults in a building proposal but to facilitate building professionals in the approval process whilst ensuring public safety and health. Re-engineering 3. With this mission in mind, BD has re-engineered the building approval process. This Practice Note announces the principles adopted in the re-engineered approval process, and the services which BD provides to facilitate the process. Pre-submission Enquiry and Conference 4. The processing of an application for approval of the basic design principles requires interaction between Authorized Persons (AP), Registered Structural Engineers (RSE), Registered Geotechnical Engineers (RGE) and the concerned Government departments and the exercise of discretion as appropriate by the latter. AP/RSE/RGE would want to settle the design principles involved at an early stage so that they can proceed with confidence and avoid any abortive work later on. 5. To facilitate early clearance of basic design principles before formal submission of plans including proposals to adopt performance-based design approach and uncommon engineering design, proposals involving applications for modification of the prescriptive requirements in the building regulations, etc, BD will upon a written enquiry provide a determination on the matters involved in the form of a “letter of assurance” normally within 45 days. BD may hold pre-submission conferences with AP/RSE/RGE and invite representatives of concerned Government departments to discuss and examine the issues and principles involved. 6. It is recommended that AP/RSE/RGE should make use of this facility to consult BD as early as possible on the use of any new structural theory, materials or systems, sophisticated designs and unconventional construction methods prior to preparing the detailed design. 7. The officers in BD responsible for the above enquiry service are at chief or senior professional level.

/Processing ….

- 2 - Processing of Formal Submissions 8. For formal submissions of general building plans, superstructural plans and drainage plans, the curtailed check system will be further simplified to check on fundamental issues only. 9. In respect of general building plans, BD will check the fundamental issues concerning density, safety, health and environment, and major issues under the allied regulations. The items to be checked are detailed in Appendix A. 10. For superstructural plans, including those of curtain wall, window wall, cladding, space frame and similar superstructural elements, BD will check the master framing plans, notes, specifications on the design loads, design methods, materials, design codes and fire resistance period requirements. The items to be checked are detailed in Appendix B. 11. For drainage plans, BD will check the disposal system, underground drain layout, the connection to public sewers and access for maintenance/repair. The items to be checked are detailed in Appendix C. 12. As regards other types of plans (e.g. demolition, site formation, structural works other than superstructure), processing will continue to be generally on a curtailed basis. The items to be checked are detailed in Appendix D. 13. Non-fundamental issues will not be checked and will not be raised as disapproval items. These relate generally to matters that do not affect the basic design of the proposed building. It is the responsibility of the AP/RSE/RGE to ensure that all such non-fundamental issues fully comply with the relevant regulations and codes of practice. 14. To ensure that a high standard of self-regulation is maintained, BD carries out audit checks by examining in detail some submissions selected at random. BD will consider taking appropriate actions against AP/RSE/RGE who prepare plan submissions which blatantly or repeatedly contravene the requirements of the Buildings Ordinance (BO) and regulations. Enquiry Service 15. To assist AP/RSE/RGE in ensuring that design details comply with BD’s requirements, BD will also provide an enquiry service regarding compliance or interpretation of building regulations and codes of practice throughout the entire development process. BD will give an answer to these enquiries normally within four weeks. 16. The staff responsible for this service are at the senior or basic professional rank.

/Concept …..

- 3 - Concept Drawings 17. To assist AP in demonstrating to concerned Government departments that their basic design principles comply with government and statutory requirements, they are recommended to submit concept drawings for pre-submission conferences, when making enquiries or when making a formal submission of general building plans. Concept drawings are coloured key plans summarizing the basic design parameters on site coverage, plot ratio, accountable floor areas, fire safety strategy and barrier free access strategy in broad terms. General guidance on the content and preparation of concept drawings is provided in Appendix E. A set of sample concept drawings is provided for reference in BD’s web site at www.bd.gov.hk. Use of Computer for Mathematical Calculations 18. AP adopting the use of computer for calculating floor areas of buildings in the preparation of general building plans are required to provide BD with an electronic copy of the plan submission with the calculations in an accepted format capable of being verified by AutoCAD, MicroStation or other software accepted by BD. In this regard, AP should follow the guidelines at Appendix F. Minor Amendments 19. The requirement for prior approval and consent for all amendments to building works for which consent has been given may affect the construction process. 20. Subject to a modification of Building (Administration) Regulation (B(A)R) 33(1) being granted by the Building Authority (BA) under section 42(1) of the BO, prior approval and consent to the minor amendments of building, superstructure (including curtain wall, cladding, space frame and similar superstructural elements) and drainage works, for which first consent has already been given, would not be required except for the following amendments :

(a) For general building plan amendments and building (alteration

and addition) amendments :

• an amendment resulting in a major revision or localized major revision as per criteria specified in Practice Notes for Authorized Persons and Registered Structural Engineers (PNAP) 143;

• an amendment having material effect on the fundamental

issues;

• an amendment involving concern on stability/deformation of slopes, retaining walls, adjoining land and buildings;

/• an …..

- 4 -

• an amendment involving an application for exemption or modification of the BO and its subsidiary regulations;

• an amendment not in compliance with the relevant

Outline Zoning Plan or deviating from a scheme approved by the Town Planning Board; or

• an amendment involving works outside the lot boundary.

(b) For superstructural plan amendments and superstructural

(alteration and addition) amendments :

• an amendment affecting the overall structural stability of the building.

(c) For drainage plan amendments and drainage (alteration and

addition) amendments :

• an amendment involving the revision of the drainage layout as a result of a major revision of the building proposal;

• an amendment involving the change of drainage disposal

system or connections to public sewers;

• an amendment involving stability/deformation of slopes, retaining walls, adjoining land and buildings;

• an amendment involving an application for exemption or

modification of the BO and its subsidiary regulations;

• an amendment involving excavations deeper than 3 metres; and

• an amendment involving works outside the lot boundary.

21. AP/RSE/RGE adopting this option of deferring the submission of these types of amendments should ensure that the proposed amendments comply with the building regulations and the requirements of concerned Government departments and the lease conditions prior to the execution of the works. The amendments should be clearly documented and deposited in the site office. He should also ensure that approval and consent for all the amendments are obtained prior to certifying completion of the building works or applying for an occupation permit/temporary occupation permit.

/22. …..

- 5 - 22. AP/RSE/RGE should submit an application for modification of B(A)R 33(1) either after obtaining the first consent or simultaneously with the application for the first consent in respect of the specific type of works [i.e. building, building (alteration and addition), superstructural, superstructural (alteration and addition), drainage and drainage (alteration and addition) works]. 23. A practice note covering the above guidelines on minor amendments has been issued to Registered Contractors. Concurrent Applications for Approval and Consent 24. To streamline the approval process for certain types of building works meeting the relevant criteria, applications for approval of plans and consent to the commencement of the building works specified in the following paragraphs may be made concurrently. Alteration and Addition Works, Drainage Works, Curtain Wall Works and Cladding Works 25. For alteration and addition (A&A) works, drainage works, curtain wall works and cladding works, approval of plans and consent to the commencement of works may be applied for concurrently if the following criteria are met:

(a) The proposed works do not involve foundation works other than spread footing with excavation depth not exceeding 4.5m, and/ or works with significant geotechnical content;

(b) Carrying out the proposed works will not involve

precautionary works or other safety measures which are required to be completed to the satisfaction of the BA prior to the commencement of the proposed works;

(c) All the plans and documents prescribed under B(A)R 8 are

submitted for approval; and (d) All the requisite supporting information/documents for the

consent application are submitted. These may include, where appropriate, site supervision plans, hoarding plans or other supporting documents such as test reports or structural assessment reports required under PNAP 249. For curtain wall works, compliance certificates and other test reports as required under PNAP 106 may be submitted prior to the application for an occupation permit.

/Fast…..

- 6 - Fast Track Processing of Proposal for Simple A&A Works 26. For simple A&A works, where the AP/RSE confirms that the proposed works do not involve the structure of the building and do not affect the fundamental issues mentioned above (or if there are only minor changes and the AP/RSE confirms that such changes comply with the provisions of the BO) and referrals to the other Government departments/offices (except Fire Services Department) are not necessary, the concurrent applications for approval and consent will be processed within 30 days. A sample of the AP’s certification form is attached at Appendix G. Building a Two-storey Warehouse 27. With effect from 1st December 2008, the Efficiency Unit (EU) launches a pilot scheme to operate a One Stop Centre for receiving submissions and coordinating joint inspections for two-storey warehouse proposals on behalf of relevant Government departments (including BD) and utility companies. Details of the scheme are available from EU's website: http://www.eu.gov.hk/english/osc/osc.html. 28. Submission of a proposal for building a two-storey warehouse via the EU’s One Stop Centre to BD for processing under the BO shall include all relevant plans such as building plans, structural plans, drainage plans, demolition plans, site supervision plans, hoarding plans, etc and the corresponding consent application. Alternatively, such submission under the BO may be made to BD directly. 29. For building proposals satisfying the following criteria, approval and consent may be applied for concurrently either through the One Stop Centre or directly to BD for processing under the BO:

(a) The proposed building is a warehouse, for general storage, of not more than two storeys and has no basement;

(b) The site is a Class A, B or C site and emergency vehicular access is

provided in compliance with Building (Planning) Regulation 41D and the Code of Practice for Means of Access for Firefighting and Rescue;

(c) No compartment in the building shall exceed 7 000m3; and (d) The criteria as set out in paragraph 25 above are satisfied.

Fast Track Processing of Proposal for a Two-storey Warehouse 30. For proposals for building a two-storey warehouse satisfying the criteria in paragraph 29 above, BD undertakes to process the concurrent applications for approval and consent within 45 days from the date of submission, irrespective of whether the submission is made via the EU’s One Stop Centre or directly to the BD.

/Form…..

- 7 - Form BA8A 31. When submitting applications for approval and consent concurrently, AP/RSE should indicate the same in the covering letter and submit the consent application on Form BA8A as at Appendix H. Regarding the submission of Form BA8A, it should be noted that:

(a) The effective date of application for consent to the commencement of the proposed building works will be the date on which the BA gives his approval of the plans of the proposed building works or, where applicable, the date on which approval is deemed to have been given by the BA; and

(b) The application for consent to the commencement of the proposed

building works will not be processed if the prescribed plans and documents of the proposed building works are not approved.

(c) In cases where the BA considers that the approval applied for would be

given but finds proper grounds to refuse the consent application, the period of 28 days as stipulated under B(A)R 32(3) would run from the date of approval.

Approval of All Prescribed Plans before Commencement of Works 32. AP/RSE should note that there are cases where approval of other types of plans, apart from the simple A&A plans, A&A plans, drainage plans, plans for curtain wall works, cladding works or a two-storey warehouse submitted in the concurrent applications concerned, and consent in respect thereof, are required before the simple A&A works, A&A works, drainage works, curtain wall works, cladding works or building works for a two-storey warehouse concerned can be carried out. In such cases, the BA may disapprove the plans and accordingly refuse the concurrent application for consent. In cases where the BA approves the plans and grants the consent concurrently, notwithstanding that some of these other types of plans required have not been approved, the AP/RSE should ensure that the works consented to will not be commenced until such time approval and consent in respect of such other types of plans have been given. (AU Choi-kai ) Building Authority Ref. : BD GP/BOP/6 (VIII) BD GP/BREG/A/3 First issue July 2002 Last revision August 2005

- 8 - This revision December 2008 (AD/NB1) – General revision to include RGE and concurrent applications for approval and consent of curtain wall works, cladding works and 2-storey warehouse; Appendix H added Index under : Re-engineering the Building Approval Process Pre-submission Enquiry Processing of Formal Submissions Curtailed Check Concept Drawings Minor Amendments–Building (Administration) Regulation 33(1) Fast Track Processing of Simple A&A works Concurrent Applications for Approval and Consent

- 1 -


(ADM-19) Checklist for Checking Fundamental Issues of General Building Plans 1. Density

(a) Site Parameters

(i) Claimed site area acceptable? (ii) Site classification correct?

Need for Building (Planning) Regulation 19(2) determination? (iii) Required private street/service lane acceptable? Deducted from site area and not built over?

(b) Site Coverage (SC) and Plot Ratio (PR)

(i) Configurations of gross floor area (GFA) diagrams (accountable, non-accountable and exempted areas) correct?

(ii) Configurations of SC diagrams (accountable, non-accountable and

exempted areas) correct? (iii) Exempted areas and non-accountable areas acceptable? (iv) Dedication/Surrender in return for bonus acceptable? (v) Overall PR & SC acceptable? (i.e. check the proposed PR and

SC against the permissible PR and SC, including any granted bonus SC & PR, mean street level and height of podium/building).

2. Safety

(a) Means of Access for Firefighting and Rescue (MOA)

(i) Number and disposition of fireman’s lifts/firefighting & rescue stairway (FRS) acceptable? (MOA 5 & 10.4)

(ii) Initial access to fireman’s lifts and FRS provided? (MOA 9 &

16) (iii) Emergency vehicular access provided? (MOA 24 & 25)

(b) Means of Escape (MOE)

(i) Single staircase building acceptable? (MOE 9)

- 2 -

(ii) MOE table: Occupancy factor and the required/provided number and width of the exit doors and exit routes acceptable? (MOE Table 1 & 2)

(iii) Discharge value calculation in order? (MOE 15) (iv) Discharge at G/F:

Directly to street, lane or to open area? (MOE 8.2) Exits at ground storey acceptable? (MOE 12)

(v) Inter-relationship between staircases acceptable? (MOE 8.3,

11.2, 13.3 & 14.3) (vi) Direct distance and travel distance acceptable? (MOE 14) (vii) Independent staircase serving the basement, kindergarten or child

care centre provided? (MOE 20 & PNAP 117) (viii) Disposition of refuge floors acceptable? (MOE 21.1 & 21.5) (ix) PPE premises: Site, exit routes and staircases acceptable?

(MOE 22, 23, 25 & 26) (c) Fire Resisting Construction (FRC)

(i) FRC table: Required/provided fire resistance period (FRP) against

the compartment volume and use acceptable? (FRC 6.1, 6.2, 6.3, 8.1 & 14.1)

(ii) Protection of adjoining buildings acceptable? (FRC 7) (iii) External walls of required staircases/lobbies acceptable?

(FRC 11.7) (iv) Smoke vent disposition acceptable? (FRC 15.2) (v) Bridge and tunnel : Fire shutter and by-pass lobby provided?

(FRC 16) 3. Health and Environment

(a) Lighting and Ventilation

(i) Window provided for habitable room, kitchen and office? (ii) Disposition of windows acceptable?

(b) Open space: Required/provided area and its disposition acceptable?

4. Major issues under allied legislations

(a) Facilities for persons with a disability

(i) Initial access for wheelchair provided? (ii) Access for wheelchair to required areas provided? (iii) Disabled toilet provided?

(b) Fire certificate issued? (c) Outline Zoning Plan complied with? (d) Vehicular run-in/out acceptable to Transport Department and Highways

Department? (e) Geotechnical assessment under PNAP 78 required and acceptable to

Geotechnical Engineering Office? (f) Airport height restriction complied with? (g) Railway protection acceptable to Mass Transit Railway

Corporation/Kowloon Canton Railway Corporation? (Rev. 12/2004)

- 3 -

Appendix B (PNAP 272)

(ADM-19)

Checking of Fundamental Issues of Superstructural Plans

For superstructural plans, submissions are divided into two parts, viz. :

(i) master framing plans in which all the requirements on materials, design loadings, workmanship and the structural framing of the structure are stipulated; and

(ii) structural detailed plans in which details of every structural

members of a building, including the size of members, quantity and arrangement of steel bars inside the members are given.

2. BD’s check on the master framing will focus on the following aspects :

(i) Stability and framing; (ii) Fire Resistance Period (FRP) requirements; (iii) Loading; and (iv) Materials.

3. To assist RSE in making superstructural submissions, a list of the items appropriate to the type of structural plans which will be checked in processing master framing plans is enclosed at Appendix B1 for general guidance. RSE should complete the checklist and include them into Part I of the calculations (prepared in accordance with PNAP 121) for submission with the structural plans for approval. (7/2002)

- 1 -

Appendix B1 (PNAP 272)

(ADM-19)

Checklist for Checking Fundamental Issues of Superstructural Plans

Items to be checked

Remarks

Structural Stability & Safety

(1) Structural System Beam-column/core wall/shear wall Flat Slab/Prestressed/Precast Beam-Slab Curtain Wall/Cladding/Window Wall Others:

(2) Compatibility Check Wind modelling Structural layout compatible with building plans Loading compatible with foundation plans

(3) Stability Check Comply with B(C)R 15 Max. lateral deflection = (d/H = 1/ ) Anchorage system : cast-in/drill-in/through bolt Supporting structure for curtain wall/cladding/window wall Robustness of the building and in particular those adopting precast concrete construction

(4) FRP Requirements Comply with building plans’ requirements Comply with 1996 Code

Loading

(5) Floor Loads Comply with building plans’ requirements Comply with B(C)R 17(1) & (2)

(6) Lateral Loads Wind loads comply with HK Wind Code Impact loads comply with B(C)R 17(3) & (4) Design soil pressure and surcharge loads Others:

(7) Dynamic Loads Comply with B(C)R 17(5) Others:

Design Standard

(8) Design Codes 1987 Concrete Code BS 8110:1985 (modified) BS 8110:1985 1987 Steel Code BS 5950:Pts 1&2:1990 Others:

(9) Design Method Working Stress Method Limit State Method

Others:

(10) Computer Programme Pre-acceptance programmes: Others:

Material Specification

(11) Concrete Not exceeding 45D Exceeding 45D, please specify : __________________

(12) Reinforcement Grade 250/460 complying with CS2:1995 Others:

(13) Prestressed Tendon Grade complying with

(14) Structural Steel Grade complying with

(15) Aluminum Grade complying with

(16) Glass Type: Permissible stress = complying with

(17) Others

/2002)

(7

- 2 -

Appendix C (PNAP272) (ADM-19)

Checklist for Checking Fundamental Issues of Drainage Plans 1. Method of disposal

(a) Public sewers (including nullah, culvert and streamcourse) available for connection and acceptable to Drainage Services Department (DSD)?

(b) Private sewers available for connection and acceptable to DSD? (c) Sewage treatment plant septic tank and soakaway design acceptable to

Environmental Protection Department (EPD)? (d) Trade/industrial effluent discharge acceptable to EPD?

2. Layout of Underground drain

(a) Direction of flow in order? (b) No surface water discharging into foul water drains? (c) No foul water discharging into surface water drains? (d) Underground drains on newly reclaimed land acceptable? (PNAP 227) (e) Underground drains kept out of slopes? (PNAP 183)

3. Connection to Public Sewer

(a) Terminal manhole and invert levels acceptable to DSD?

(b) Sizes of connection pipe acceptable to DSD? 4. Access for maintenance/repair

(a) Common underground drain located in common area? (PNAP 211) (b) No water-borne pipe embedded in structural elements? (PNAP 230) (c) Condensate disposal system for air-conditioning units provided?

(PNAP 238)

- 1 -

5. Other related issues

(a) Well construction acceptable? (PNAP 17) (b) Drain within a gathering ground acceptable to Water Services

Department?

(c) Discharge proposal for sites within 200m of seaward boundaries of a marine fish culture zone acceptable to EPD?

(d) Railway protection zone :

(i) Deep excavation acceptable to Mass Transit Railway Corporation (MTRC)?

(ii) Installation of wells including bored well acceptable to MTRC?

(7/2002)

- 2 -

Appendix D (PNAP 272) (ADM-19)

1. Checklist for Checking Fundamental Issues of Demolition Plans

(a) Precautionary measures particularly the hoarding, covered walkways and any necessary propping and shoring;

(b) The codes and standards proposed to be adopted;

(c) Appraisal of the building to be demolished, methods statement, sequence of

demolition and the safe use of any powered mechanical plant;

(d) Stability of the framing system during demolition and of any remaining structures after demolition; and

(e) Effects on all affected buildings, slopes structures, lands and services and the

provision of supports and protection, if necessary. 2. Checklist for Checking Fundamental Issues of Site Formation Works

(including Slope Works) and Deep Excavation and Lateral Support Works

(a) The geotechnical parameters and assumptions adopted in the design;

(b) The margin of safety;

(c) The safety of the structural elements;

(d) The buildability such as the construction sequence, working space and safety under temporary condition; and

(e) The effects of the proposed works on surrounding land, structures and

utilities. 3. Checklist for Checking Fundamental Issues of Structural Works other than

Superstructure, such as Foundation and Excavation and Lateral Support Works

(a) Codes and standards adopted;

(b) The geotechnical parameters and assumptions adopted in the design;

(c) Loadings;

(d) Stability of framing and foundation systems;

(e) Structural adequacy of major structural elements;

- 1 -

(f) The margins of safety of the framing and foundation systems;

(g) Adequacy of precautionary measures;

(h) Effects on adjoining buildings, structures, lands, streets and utility services;

(i) Construction sequence and safety under temporary condition;

(j) Ground settlement estimates; and

(k) Groundwater drawdown estimates.

(7/2002)

- 2 -

Appendix E

(PNAP 272)

(ADM-19) General Guidelines for Concept Drawings

1 Basic Information in Concept Drawings

Site coverage including accountable, non-accountable and exempted SC

area;

GFA including accountable, non-accountable and exempted domestic

and non-domestic GFA;

Fire safety strategy including MOE, MOA and FRC arrangements;

Barrier free access including basic provision of access and facilities for

wheelchair-users.

2 Sample Drawings

Sample concept drawings are available in BD’s website at

www.info.gov.hk/bd for reference.

3 Size

A2, A3 or A4 depending on size of development.

4 Colour Scheme

It is recommended that the colour schemes for designation of different

types of SC & GFA and barrier free access in sample concept drawings

be adopted.

5 Signs and Indicators

It is recommended that the signs and indicators for MOE, MOA and

FRC arrangements in the sample concept drawings be adopted.

(7/2002)

Appendix F (PNAP 272)

(ADM-19) Notes on Submission Drawing Standards in Electronic Format

Electronic Submission for Mathematical Calculation of Areas

Introduction

The purpose of this supplementary note is to advise on the electronic format and the pre-requisites for checking of area calculations in CAD drawing files electronically. 2. When the requirements set out in the following paragraphs are complied with and clearly shown in the submitted CAD drawing files, diagrammatic breakdowns and details on calculation of the gross floor area, usable floor area, site coverage, plot ratio, refuge floor area and green feature area etc. would not be required to be included in plan submission. For avoidance of doubt, annotation and dimension of the areas concerned are required to be indicated on plans for checking purpose. Samples of the dimensioned plans are in Annex 1 for reference.

3. For area calculations computed electronically, soft copies of the building floor plans containing the area diagram layer(s) are required to facilitate verification of the calculations. For approval purpose, hard copies of the general building plans showing floor area layouts, area diagrams and calculations without breakdowns are required. Information shown in both the soft and hard copies of the plans submitted for approval must be identical to each other. Plans may be rejected if discrepancy between the two is found. The AP should certify on each of the CD-ROM discs with a permanent marker signifying that information in the electronic drawing files are identical to the submitted hard copies and that all files are prepared under his supervision. His signature shall be deemed to be his assumption of responsibility for the electronic plans and the calculations.

4. The following minimum requirements in CAD drawing format should be observed and provided for in the area calculations computed electronically. Plans may be rejected on grounds of insufficient information if these requirements are not complied with.

4.1 Format and Software Version

(a) The submitted CAD drawing files should be stored in non-rewritable CD-ROM discs. Except otherwise agreed by the Building Authority all other electronic submission formats are not acceptable.

(b) CAD drawings using AutoCAD version R14 or later or

MicroStation version SE, J, V8 or later are acceptable. (c) AutoCAD files should be saved in “.dwg” format and

MicroStation files in “.dgn” format only. All other

- 1 -

compressed or zipped file formats are not acceptable.

(d) Title blocks completed with drawing number showing revision

legends, site/project title, drawing title etc. should be inserted in every drawing for identification purpose. Each CAD file shall contain one hard copy drawing only. Typical title block sample is attached in Annex 2 for reference.

4.2 Referencing System

File Name/Drawing Number Convention (a) Each file shall contain one drawing only, default zoomed to

full drawing extent. (b) All information for approval shall be contained in the same

drawing file. The need to cross-reference or hyper-link with another CAD file to enable verification of the area calculations in the CD ROM is not acceptable except in situation covered in (c) below.

(c) In situation where the layering number and the system are

limited due to software constraint, limited referencing system might be used provided that all information and model files which compose the final drawings are clearly visible and intact when files are open in the computer. A clear and systematic path trial in hard copy format highlighting the list of file(s) for area checking purpose should be provided to facilitate the verification exercise. All drawing files and model files are to put into the same folder to ensure coherent path recognition. Cross-referencing and hyper-linking within folder should be kept to the minimum.

(d) Naming and numbering of drawing files in the hard copy

should be identical to those in the submitted soft copy. (e) A completed hard and soft copy of the drawing index listing all

file names, drawing numbers with brief description on location and contents of the submitted drawings shall be provided. Drawings under different revision must carry a revision letter (e.g. A to Z) for identification purpose. For large and complicated project involving numerous drawing versions/amendments, a revision legend should also be provided as well.

e.g. B-01_ A. DWG

Drawing No. Rev. A

- 2 -

4.3 Layering Organization

(a) CAD drawing files including floor plans, tables and

calculations etc. shall contain all information identical to the hard copy. Each file shall accommodate different elements such as floor layout plans, usable floor area, gross floor area and dimension etc. into the relevant layers. The “layering” drafting technique isolates elements of a drawing and places them into separate layers for easy reference and manipulation. The same principle applies to “level” in MicroStation files.

(b) To facilitate checking of the area calculations, general

building plans shall contain GFA and other areas diagram layer(s) for verification and calculations. To reconcile the requirements of other government departments and to adopt the rules under CAD Standards for Works Projects (CSWP) of Environment, Transport and Works Bureau, AP shall name the relevant layers in a format specified below:

Layer Name Convention

Diagram A: Rules of Layer Name Convention of CSWP (abstracted)

ARC 082 4 0 Field 3 - Addition/Deduction Type Field 2 - Building Plan Area Type (Sub-class) Field 2 - CSWP Element Code assigned for

Building Plan Area Calculation (Class) Field 1 - Agent Responsible Code (ARC) e.g. ADA Field Description Length/Type Coding

1 Agent Responsible Code 3 (alphanumeric) See www.etwb.gov.hk/cswpCSWP Element Code assigned for Building Plan Area Calculation (Class)

3 (numeric) a) 082 for BD’s area calculation, b) 086 for LandsD’s area calculation

2

Building Plan Area Type (Sub-class)

1 (numeric) See Diagram B

3 Addition/Deduction Type 1 (alphanumeric) See Diagram C

Diagram B

Code Building Plan Area Type 1 Site Coverage (SC) – Non-domestic 2 Site Coverage (SC) –Domestic 4 Gross Floor Area (GFA) –

Non-domestic 5 Gross Floor Area (GFA) – Domestic 9 Usable Floor Area (UFA) 0 Open Space (OS) _ Elements common to all area type

- 3 -

Diagram C

Code Addition/Deduction Type

Remarks

0 Base Area 4 Deduction Area For area to be deducted from the outline of area

layers under the Buildings Ordinance. 5 Deduction Area For area to be deducted from the outline of area

layers under the Lands Department requirement. 6 Deduction Area For area to be deducted from the outline of area

layers under the Planning Department requirement. 8 Dimension

Diagram D: Layer Names generated from the above rules for this PNAP

Code Description Remarks

ARC08240 Non-domestic area Layer

For outline of non-domestic GFA layer.

ARC08244 Non-domestic area to be deducted from area calculations

For non-domestic area to be deducted from the outline of non-domestic area layers under the Buildings Ordinance.

ARC08246 Non-domestic area to be deducted from area calculations

For non-domestic area to be deducted from the outline of non-domestic area layers under the Planning Department requirements.

ARC08250 Domestic area Layer For outline of domestic GFA layer.

ARC08254 Domestic area to be deducted from area calculations

For domestic area to be deducted from the outline of domestic area layers under the Buildings Ordinance.

ARC08256 Domestic area to be deducted from area calculations

For domestic area to be deducted from the outline of domestic area layers under the Planning Department requirements.

ARC082_8 Dimension layers All dimensions for the floor layout plans are automatically generated from the computer software (not to be manually inserted by text input construction)

ARC08210 Area for non-domestic site coverage calculations

For outline of non-domestic site coverage layer.

ARC08214 Non-domestic site coverage deducted from calculations

Deduction complying with requirements of the Buildings Department.

ARC08216 Non-domestic site coverage deducted from calculations

Deduction complying with requirements of the Planning Department.

ARC08220 Area for domestic site coverage calculations

For outline of domestic site coverage layer.

- 4 -

ARC08224 Domestic site

coverage deducted from calculations

Deduction complying with requirements of the Buildings Department.

ARC08226 Domestic site coverage deducted from calculations

Deduction complying with requirements of the Planning Department.

ARC08200 Area for open space calculations

For outline of open space layer.

ARC08204 Area to be deducted from open space calculations

For area to be deducted from outline of the open space under the Buildings Ordinance.

ARC08290 Area for usable floor area calculations

For outline of usable floor area layer.

ARC08294 Area to be deducted from the usable floor area calculations

For area to be deducted from outline of the usable floor area under the Buildings Ordinance.

(c) The layer names required by LandsD are not listed in this

PNAP and AP should make reference to the Practice Note issued by LandsD. AP should also refer to CSWP of Environment, Transport and Works Bureau (at www.etwb.gov.hk/cswp) for other layer name convention.

(d) Layering organization of the file(s) in hard copy format shall

be submitted. If more layering description is required in the submitted general building plans, AP could lengthen the above list with additional input along similarly constructed methodology. All layering organizations must be clearly shown.

Layer contents (e) CAD file for the floor plan shall contain all elements and

information that have to be shown on the drawings to facilitate approval, including, inter alia, the area and the dimension layers. Elements such as lighting, electric appliances and the like where approval from the Building Authority is not required should not be shown in the submitted drawings.

4.4 Presentation Style

Drawing Scale

(a) CAD drawings should be drawn in true size (i.e. 1 drawing

unit = 1mm or metre) with precision rounded up to the nearest mm unit.

Drawing Object within area diagram (b) The position of the drawing shall be close to World

- 5 -

- 6 -

Coordination 0,0 and drawing objects in area diagram shall not be grouped or blocked.

Polyline (c) All line drawings intended for area calculations in area layer(s)

shall be in closed polyline diagram (or in complex shape in MicroStation files).

Dimension (d) All dimensions should be true dimensions generated

automatically by the software and laid in the specified layers. Text figures or figures manually inserted, amended or constructed for calculation purpose in the CAD file is not acceptable.

Decimal places of areas and volumes (e) All areas and volumes should be presented in m2 and m3 units

respectively and rounded up to 3 decimal places.

Suggested Text Font (f) Text style is not compulsory. Conventional text fonts are

suggested. Common type such as “Romans” font is recommended for use in the text. For MicroStation, “Engineering” font could be adopted.

Review 5. These guidelines will be refined taking into the experience gained. Suggestions to facilitate and/or to improve the electronic vetting procedures are always welcomed.

First issue : August 2003 This revision : September 2006 (Layer Name Convention amended)

Annex 1

Samples for Dimensioned and Annotated GFA Diagrams The following part diagrams shown with dimensions and annotations are for reference only. They are intended to illustrate the minimum information required to facilitate electronic verification of the area calculations more effectively. Illustrations shown are by no means exhaustive.

Sample 1 Rectangular shape GFA diagram

Sample 2 GFA diagram with curve(s) and annotations

- 1 -

Sample 3 GFA diagram (part) with dimension and annotation

Sample 4 GFA diagram (part) with grid line and dimension.

Sample 5 Overview of a sample GFA diagram with calculations

- 2 -

- 1 -

Annex 2

Sample Title Panel

Original Drawing No. (if any)

AUTH

NOTES

REVISIONS INITIAL AND DESIG

Information Panel

NATIONNO. DESCRIPTION AND DATE DWN CKD

NAME AND DESIGNATION

AUTHORIZED

CHECKED

DRAWN

DATE INITIAL

Revision Column

Officers Concern

PROJECT

Site/Project TitleDRAWING TITLE

SCALE

DRAWING NO

SOURCE

Drawing Title

Scale Drawing Number (with revision)

Company Logo (if any)

*Information box shown in bold letter is compulsory for BD submission

Appendix G (PNAP 272)

(ADM-19)

Request for Fast Track Processing of Plans of Alteration and Addition Works and Certificate of Preparation of Plans

To the Building Authority In accordance with paragraph 23 of PNAP 272, I hereby request for fast track processing of the plans submitted for the proposed A & A works to be carried out at . 2. I confirm that the A & A works as shown on the enclosed drawings (drwg. no. ____________ to ___________________ ) do not involve the structure of the building and do not involve changes to the latest approved plans of the affected areas in the following aspects :

∗ Density - site parameter, plot ratio, site coverage; ∗ Fire safety - means of access, means of escape in case of fire, fire resistance,

compartmentation; ∗ Health and environment - lighting, ventilation, open space; ∗ Fundamental issues required under allied legislation - fire safety, OZP, access for

persons with a disability, airport height restrictions, railway route protection. 3. I also confirm that the A & A works as shown on the enclosed drawings (drwg. no. __________________ to __________________ ) involve changes to the latest approved plans of the affected areas in the following aspects :

∗ Fire safety - means of access, means of escape in case of fire, fire resistance, compartmentation;

∗ Health and environment - lighting, ventilation, open space; ∗ Minor changes to structural elements of the building;

and that such changes as shown on the said drawings comply with the provisions of the Buildings Ordinance. 4. A Form BA 8 applying for your consent to the commencement and carrying out of the A & A works mentioned in paragraph 1 above is enclosed.

Date Signature of authorized person

(Name in full)

Signature of Registered Structural Engineer

* delete whichever is inapplicable (Name in full) (7/2002)

Appendix H (PNAP 272)

(ADM-19) Form BA 8A

BUILDINGS ORDINANCE (Chapter 123)

Section 14(1)(b) BUILDING (ADMINISTRATION) REGULATIONS

Regulation 31

Application for Concurrent Consent to the Commencement of Building Works

Date To the Building Authority, In accordance with the provisions of section 14(1)(b) of the Buildings Ordinance and Regulation 31 of the Building (Administration) Regulations, *I/We, (name of applicant) submit this Form for your custody, and consideration where appropriate, in relation to obtaining concurrent consent for commencement of the following building works upon approval of the relevant proposal, at (number and name of street and locality) on (Lot No.) as shown on the plans mentioned in paragraph 2 below :

* Simple Alteration & Addition Works/Alteration & Addition Works/Drainage Works/Curtain Wall Works/Cladding Works/Building Works for a Two-storey Warehouse

2. I confirm that the proposed building works which are to be carried out at the abovementioned address as shown on the plans (drwg. No. ) submitted together with this form satisfy the following criteria :

I General Criteria

Yes No(a) The proposed works do not involve foundation works, other than spread

footing with excavation depth not exceeding 4.5m, and/or works with significant geotechnical content;

(b) Carrying out the proposed building works will not involve precautionary works or other safety measures which are required to be completed to the satisfaction of the Building Authority prior to the commencement of the proposed works;

(c) All the plans and documents prescribed under Building (Administration) Regulation 8 are submitted for approval; and

(d) All the requisite supporting information/documents for the consent application are submitted. (The supporting information/documents may include, where appropriate, site supervision plans, hoarding plans or other supporting documents such as test reports or structural assessment reports required under PNAP 249. For curtain wall works, compliance certificates and other test reports as required under PNAP 106 may be submitted prior to the application for an occupation permit.)

II Specific Criteria for Building Works for a Two-storey Warehouse

Yes No(a) The proposed building is a warehouse, for general storage, of not more

than two storeys and has no basement;

(b) The site is a Class A, B or C site and emergency vehicular access is provided in compliance with Building (Planning) Regulation 41D and the Code of Practice for Means of Access for Firefighting and Rescue;

(c) No compartment in the building shall exceed 7000m3

3. I understand that this application for consent to the commencement of the proposed building works will not be considered if the prescribed plans and documents of the proposed building works are not approved. I further understand and agree that for the purpose of Building (Administration) Regulation 32(3), the effective date of this application for consent to the commencement of the proposed building works will be the date on which the Building Authority gives his approval of the plans of the proposed building works or, where applicable, the date on which approval is deemed to have been given by the Building Authority.

Signature

Capacity of signatory 4. To be filled in by the Building Authority

Type of plans Date of approval BA’s Ref. No.

Note : Reference to be made to paragraph 31 of PNAP 272 * Delete whichever is inapplicable. (12/2008)

Re-issued under new categorization in August 2009 as Practice Note for Authorized

ersons, Re ADM-20gistered Structural Engineers and Registered Geotechnical Engineers P


292

Central Data Bank (CDB)

A Central Data Bank (CDB), which contains lists of building materials, components and construction systems that have been accepted by some government departments, has been set up. The CDB will initially contain information accepted by the Buildings Department (BD). Purpose 2. The CDB aims to provide a web-based point of reference to authorized person (AP), registered structural engineer (RSE) and other parties concerned in the building industry. It is intended to help sharing of information amongst government departments and to enhance public access to information. Scope 3. The CDB contains information of building materials, components and systems that have been accepted by some government departments. In the case of the Buildings Department (BD), such acceptance will generally be based on tests and assessments carried out by the accredited laboratories and assessed and certified by the AP/RSE as meeting the standards stipulated at the time of submission to BD, in accordance with Practice Note for APs and RSEs (PNAP) 251. APs and RSEs are reminded that the information included in BD’s list is historical data. Listing Procedures 4. For structural products, a building material, component or construction system may be included in the BD’s list in the CDB if:

(a) its use in a particular building project has been accepted by the BD and plans of the building project are submitted after the launch of the CDB;

(b) it is currently on BD’s List of Recognized Types of Piles; or

(c) a BD’s no-objection letter has been issued on the basis of pre-approval

acceptance prior to the implementation of PNAP 251.

5. For non-structural products, the primary source of information for inclusion in the BD’s list is from the Schedule of Building Materials and Products submitted in accordance with PNAP 53. BD will randomly select some of the building products from the Schedules received after the launch of the CDB for audit check as to the relevance of the laboratory tests and assessments. Relevant information will then be transferred to the BD’s list in the CDB.

/ 6…..

- 2 - 6. Due to copyright consideration, the design details and the test and assessment reports associated with the product will not be exhibited in the CDB. A sample of BD’s list in the CDB is provided at Appendix A. 7. As the CDB contains only historical information on material acceptance in respect of a building development, BD will not accept direct application from a supplier, manufacturer or alike for including its products in the BD’s list. Use of Data 8. APs/RSEs who make use of or relies on any information in the CDB shall take full responsibility for the application and performance of a building material, component or construction system. They should ensure the materials, components or systems adopted have been properly tested according to the latest standards. If they are satisfied with the use of such materials and do not wish to submit hard copies of the test reports which are identical to the reports listed in the BD’s list in the CBD, they may quote the reference data from the CDB in their certification. Any supplementary test or assessment reports that are not indicated in the BD’s list should however be submitted. For the purpose of the Schedule of Building Materials and Products, the AP may quote the reference number of the BD’s list in the “Remarks/Comments” column of the Schedule. A sample Schedule is provided at Appendix B. Enquiries and Feedback 9. BD will follow up on enquiries and feedback on BD’s lists and may refer matters affecting the general operation of the CDB to the Working Group on Central Data Bank, comprising representatives of various government departments. Enquiries and feedback may be sent to the Technical Support Section of BD by mail, by fax (2537 4992) or by email ([email protected]). ( Marco M H WU ) Building Authority

Ref. : BD GR/1-55/182

First issue January 2005 (DD)

Index under : Central Data Bank Schedule of Building Materials and Products

Appendix A (PNAP 292) (ADM-20)

Sample BD’s Reference List under Central Data Bank

Reference List for Fire Resisting Doorsets

Fire Resisting Performance

(minutes)

Details of Test or Assessment Report Ref. No. Product Name

Name of Manufacturer and

Place of Manufacture (City

and Country) Integrity Insulation Name of Laboratory

Accreditation Body

Name of Laboratory /

Assessing Organization

Report no. Date of Test /

Assessment Report

Validity Date

Date of Posting on

CDB

Remarks/ Comments

BD-D010 Fire Door ABC ABC Ltd. Co., Edinburgh, UK

30 30 United Kingdom Accreditation System

XYZ International Fire Ltd.

Test Report 12345

20/6/2003 1/2/2005

BD-D011

BD-D012

Appendix B (PNAP 292) (ADM-20)

Sample Schedule of Building Materials and Products (under PNAP 53 App A) Re : xx Nathan Road, Kowloon, Hong Kong (Address of development site) (A) Fire Resisting Products

Fire Resisting Performance

(minutes)

Details of Test or Assessment Report Building Product

Product Name

Name of Manufacturer and Place of Manufacture

(City and Country)

Insulation

Compliance with Relevant

Building Regulations &

Codes of Practice

Name of Laboratory

Accreditation Body

Integrity Name of Laboratory /

Assessing Organization

Report no. Date of Test /

Assessment Report

Validity Date

Remarks/ Comments

a) Fire resisting doorset

G01 Fire Door ABC

ABC Ltd. Co., Edinburgh, UK

30 30 FRC Code para. 6.5 & 11.3

United Kingdom Accreditation System Ditto

XYZ International Fire Ltd. Ditto

Test Report 12345# Assessment Report 98765

20/6/2003 10/1/2004

10/1/2006

BD-D010#

b) Lift landing door

c) Fire resisting glazing

d) Fire-stop or sealing system in wall/ floor/ curtain wall, etc

e) Others (e.g. proprietary products, fire shutter, etc)

# Copy of test report not submitted as it is identical to the report shown in BD’s reference list (Ref. No. BD-D010) under the CDB. Signature of Authorized Person 1/3/2005 Date

ADM Output

Documents

Transcript of ADM Output