(Public Pack)Agenda Document for Central Sydney Planning ...€¦ · WINDTECH Consultants Pty Ltd....

Attachment C3

Solar Access Reports - CSPC 18 October 2018

126257

WINDTECH Consultants Pty Ltd ABN 72 050 574 037

Head Office: 607 Forest Road, Bexley, NSW 2207, Australia

P +61 2 9503 0300 E [email protected] W www.windtechconsult.com

Sydney | Abu Dhabi | Hong Kong | London | Melbourne | Mumbai | New York | Singapore

700 GEORGE STREET, SYDNEY

OVERSHADOWING IMPACT ASSESSMENT

WD574-05F02(REV1)- SA REPORT

MAY 15 2018

Prepared for:

Johnson Pilton Walker

Level 10 Plaza Building Australia Square, 95 Pitt Street, Sydney NSW 2000

127258

© Windtech Consultants Pty Ltd 700 George Street, Sydney

Sydney Office Overshadowing Impact Assessment

WD574-05F02(rev1)- SA Report Johnson Pilton Walker

May 15, 2018 Page ii

DOCUMENT CONTROL

Date Revision HistoryIssued

Revision

Prepared By

(initials)

Instructed By

(initials)

Reviewed &Authorised by

(initials)

May 2, 2018 Initial. 0 TH KP TH

May 15, 2018Updated with client

comments.1 TH KP TH

The work presented in this document was carried out in accordance with the Windtech Consultants Quality Assurance System, which isbased on International Standard ISO 9001.

This document is issued subject to review and authorisation by the Team Leader noted by the initials printed in the last column above. Ifno initials appear, this document shall be considered as preliminary or draft only and no reliance shall be placed upon it other than forinformation to be verified later.

This document is prepared for our Client's particular requirements which are based on a specific brief with limitations as agreed to withthe Client. It is not intended for and should not be relied upon by a third party and no responsibility is undertaken to any third partywithout prior consent provided by Windtech Consultants. The information herein should not be reproduced, presented or reviewed exceptin full. Prior to passing on to a third party, the Client is to fully inform the third party of the specific brief and limitations associated withthe commission.

128259




May 15, 2018 Page iii

EXECUTIVE SUMMARY

This report presents the results of a detailed assessment of the overshadowing impact of the

proposed development located at 700 George Street, Sydney, onto the living area windows of

the various residential apartments of the following neighbouring buildings as requested by

Council:

Aspect Apartments located at 2-4 Cunningham Street

Mosaic by Meriton located at 420-426 Pitt Street

Break Free on George located at 653-659 George Street

651 George Street based on the building approved under D/2015/1758

Peak Apartments located at 2 Quay Street, Haymarket

Century Tower located at 743-755 George Street

Miramar Apartments located at 398-408 Pitt Street

The analysis has been carried out utilising a detailed 3D computer model of the subject

development and surrounding buildings, and the shadows cast by these buildings can be

visualised within this model. Shadows are cast over the model based on the path of the sun

between 9am to 3pm on the mid-winter solstice (June 21). In addition to assessing the impact

of the proposed 700 George Street development onto the abovementioned buildings, the

impact of the approved DA builtform for 59 Goulburn Street and 651 George Street

developments, and the existing 700 George Street development were also assessed and

detailed further within the report.

The results of the analysis for the various neighbouring buildings between 9am to 3pm on the

winter solstice within the 3D computer model are summarised as follows:


The proposed 700 George Street building will cast a shadow onto seven south-

western corner residential apartments; 3103, 3203, 3303, 3403, 3502, 3602 and

3702, located on Levels 31 to 37.

All residential apartments will achieve a minimum of 2 hours of direct solar access

with the inclusion of the proposed 700 George Street building.

With the inclusion of the approved DA builtform massing of 59 Goulburn Street, the

proposed 700 George Street building will not cast any additional shadow onto the

above mentioned residential apartments

129260




May 15, 2018 Page iv


The proposed 700 George Street building will cast a shadow onto seven south-

western corner residential apartments; 271, 286, 291, 306, 311, 323 and 333,

located on Levels 27 to 33.

There will be no increase in the number of apartments that receive “no direct

sunlight” with the inclusion of the proposed 700 George Street building.

Residential apartment 333 receives less than 2 hours of direct sunlight to the living

area windows. With the inclusion of the proposed 700 George Street building the

amount of direct sunlight the residential apartment receives is reduced by 12.5%

which is within the 20% limit as specified in Design Guidance Point 3 of Objective 3B-

2 of the ADG.

The proposed 700 George Street building will not cast any additional shadows onto

the above-mentioned residential apartments in relation with the inclusion of the

approved DA builtform of the 59 Goulburn Street building.


All residential apartments will achieve a minimum of 2 hours of direct solar access

with the inclusion of the proposed 700 George Street building.


the residential apartments of the Break Free on George building as they will be

overshadowed by those casted from the neighbouring buildings.

651 George Street


the residential apartments of the approved 651 George Street building as they will be

overshadowed by those casted from the neighbouring buildings.



the residential apartments of Peak Apartments due to the location and distance

between the two buildings.



the residential apartments of Century Tower due to the location and distance between

the two buildings.

130261




May 15, 2018 Page v



the residential apartments of Miramar Apartments due to the location and distance

between the two buildings.

131262




May 15, 2018 Page vi

CONTENTS

Executive Summary iii

1 Methodology 1

2 Results of Analysis 8

2.1 Aspect Apartments located at 2-4 Cunningham Street 8

2.2 Mosaic by Meriton located at 420-426 Pitt Street 13

2.3 Break Free on George located at 653-659 George Street 18

2.4 651 George Street (D/2015/1758) 27

2.5 Peak Apartments located at 2 Quay Street, Haymarket 31

2.6 Century Tower located at 743-755 George Street 33

2.7 Miramar Apartments located at 398-408 Pitt Street 35

3 References 37

APPENDIX A - Solar Chart for the Sydney Region

132263




May 15, 2018 Page 1

1 METHODOLOGY

The overshadowing analysis is carried out based on a shadow diagram analysis for the

proposed development and the adjacent surroundings in a 3D CAD environment. The study

takes into account any overshadowing effects caused as a result of buildings and their eaves,

overhead protruding balcony slabs, blade walls, etc, and any other feature which may affect

overshadowing. The properties selected for analysis were identified by the City of Sydney

Council as being potentially impacted by the proposed development of 700 George Street. The

assessment of the overshadowing onto the neighbouring buildings will be undertaken for the

following scenarios:


1. The existing surrounds with the inclusion of the existing 700 George Street

building and existing 59 Goulburn Street building.


building and approved DA builtform of the 59 Goulburn Street building.

3. The existing surrounds with the inclusion of the proposed 700 George Street















building.


building.

133264




May 15, 2018 Page 2

3. The existing surrounds with the inclusion of the approved DA builtform of the

651 George Street building.


building and approved DA builtform of the 651 George Street building.

651 George Street (D/2016/1758)


building.


building.



building.


building.



building.


building.










Shadows are cast over the model which is based on the path of the sun on the winter solstice

(June 21) respective of the site location between 9am to 3pm. The residential apartments on

the neighbouring buildings that may be affected by the overshadowing impacts of the proposed

700 George Street development will be determined and compared with the abovementioned

surrounds scenarios. For the affected apartments that currently achieve more than 2 hours of

134265




May 15, 2018 Page 3

direct solar access, this can be reduced to a minimum of 2 hours. For the remaining affected

apartments that currently achieve less than 2 hours of direct solar access, they will be

compared against the relevant Design Guidance; Point 3 of Objective 3B-2 and Point 5 of

Objective 4A-1, as outlined the Apartment Design Guide (ADG).

Design Guidance Point 3 of Objective 3B-2 states that “Where an adjoining property does not

currently receive the required hours of solar access, the proposed building ensures solar access

to neighbouring properties is not reduced by more than 20%”.

Design Guidance Point 5 of Objective 4A-1 states that “To maximise the benefit to residents of

direct sunlight within living rooms and private open spaces, a minimum of 1m2 of direct

sunlight, measured at 1m above floor level, is achieved for at least 15 minutes”. An apartment

that does not satisfy this design guidance is considered to be receiving “no direct sunlight”.

Perspective images of the 3D CAD model used for the analysis are presented in Figures 1a to

1d.

135266




May 15, 2018 Page 4

Figure 1a: Perspective Image of the 3D Computer Model

with the Proposed 700 George St Building

(view from the north-east)

136267




May 15, 2018 Page 5

Figure 1b: Perspective Image of the 3D Computer Model with the Proposed 700

George St Building (view from the north-west)

137268




May 15, 2018 Page 6

Figure 1c: Perspective Image of the 3D Computer Model with the Proposed 700

George St Building (view from the south-east)

138269




May 15, 2018 Page 7

Figure 1d: Perspective Image of the 3D Computer Model with the Proposed 700

George St Building, approved DA 59 Goulburn St & 651 George St Buildings

(view from the north-west)

139270




May 15, 2018 Page 8

2 RESULTS OF ANALYSIS

The results of the study for the various neighbouring buildings outlined in Section 1 of this

report are presented in the following sub-sections for each building respectively.

2.1 Aspect Apartments located at 2-4 Cunningham Street

An assessment of the existing Aspect Apartments located at 2-4 Cunningham Street has been

undertaken for the four surrounds scenarios as detailed in Section 1 of this report.

The results of the study indicates seven south-western corner residential apartments; 3103,

3203, 3303, 3403, 3502, 3602 and 3702, located on Levels 31 to 37 of the Aspect Apartment

building are affected by the shadows casted from the proposed 700 George Street building

between 2:50pm to 3pm on the winter solstice. Figures 2a and 2c indicates the seven south-

western corner residential apartments that are affected by the shadows casted from the

proposed 700 George Street building with the inclusion of the existing 59 Goulburn Street

building at 2:50pm to 3pm on the winter solstice respectively.

However a further analysis of Scenario 2; the existing surrounds with the inclusion of the

existing 700 George Street building and approved DA builtform of the 59 Goulburn Street

building, indicates the approved DA builtform of the 59 Goulburn Street building will have an

even greater overshadowing impact onto the abovementioned south-western corner residential

apartments between 2:50pm to 3pm on the winter solstice. This is indicated in Figures 2b and

2d respectively.

Hence the proposed 700 George Street building will not cast any additional shadows onto

affected south-western corner residential apartments of Aspect Apartment between 9am to

3pm on the winter solstice with inclusion of the overshadowing impact of the approved DA

builtform of the 59 Goulburn Street building.

A further analysis indicates that all seven south-western corner residential apartments will

achieve a minimum of 2 hours of direct solar access to the living area window(s) between 9am

to 3pm on the winter solstice. This is because the proposed 700 George Street building and

approved DA builtform of the 59 Goulburn Street building will only have an overshadowing

impact on the living area window along the western façade of these apartments. The living area

window(s) along the northern façade of these apartments remain unaffected and are exposed

to direct solar access in the earlier periods of the day.

140271




May 15, 2018 Page 9

Figure 2a: Perspective Image of the shadows casted by the proposed 700 George

Street Building & Existing Surrounds onto Aspect Apartment (2:50pm)

141272




May 15, 2018 Page 10

Figure 2b: Perspective Image of the shadows casted by the proposed 700 George

Street Building, approved DA builtform of the 59 Goulburn Street Building & Existing

Surrounds onto Aspect Apartment (2:50pm)

142273




May 15, 2018 Page 11

Figure 2c: Perspective Image of the shadows casted by the proposed 700 George

Street Building & Existing Surrounds onto Aspect Apartment (3:00pm)

143274




May 15, 2018 Page 12

Figure 2d: Perspective Image of the shadows casted by the proposed 700 George

Street Building, approved DA builtform of the 59 Goulburn Street Building & Existing

Surrounds onto Aspect Apartment (3:00pm)

144275




May 15, 2018 Page 13

2.2 Mosaic by Meriton located at 420-426 Pitt Street

An assessment of the existing Mosaic by Meriton located at 420-426 Cunningham Street has

been undertaken for the four surrounds scenarios as detailed in Section 1 of this report.

The results of the study indicates seven south-western corner residential apartments; 271,

286, 291, 306, 311, 323 and 333, located on Levels 27 to 33 of the Mosaic by Meriton building

are affected by the shadows casted from the proposed 700 George Street building between

2:50pm to 3pm on the winter solstice. Figures 2a and 2c indicates the seven south-western

corner residential apartments that are affected by the shadows casted from the proposed 700

George Street building with the inclusion of the existing 59 Goulburn Street building at 2:50pm

to 3pm on the winter solstice respectively.

However a further analysis of Scenario 2; the existing surrounds with the inclusion of the

existing 700 George Street building and approved DA builtform of the 59 Goulburn Street

building, indicates the approved DA builtform of the 59 Goulburn Street building will have an

even greater overshadowing impact onto the abovementioned south-western corner residential

apartments between 2:50pm to 3pm on the winter solstice. This is indicated in Figures 2b and

2d respectively.

Hence the proposed 700 George Street building will not cast any additional shadows onto

affected south-western corner residential apartments of Mosaic by Meriton building between

9am to 3pm on the winter solstice with respect to the overshadowing impact of the approved

DA builtform of the 59 Goulburn Street building.

A further analysis of the existing solar conditions indicates that residential apartments 271,

286, 291, 306, 311 and 323 are considered to be receiving “no direct sunlight” as they do not

achieve at least 15 minutes of direct sunlight for an area 1m2 measured at 1m above floor level

as per Design Guidance Point 5 of Objective 4A-1 of the ADG.

Residential apartment 333 however does satisfy Design Guidance Point 5 of Objective 4A-1 of

the ADG; however the analysis indicates it will only achieve 80 minutes of direct sunlight to the

living area windows between 9am to 3pm on the winter solstice due to the overshadowing

impacts of the existing surrounding buildings. The inclusion of the proposed 700 George Street

building and/or the approved DA builtform of the 59 Goulburn Street building will reduce the

amount of direct sunlight from 80 minutes to 70 minutes. This represents a 12.5% reduction in

available direct sunlight, which is within the 20% limit of Design Guidance Point 3 of Objective

3B-2 of the ADG.

Hence, with the inclusion of the proposed 700 George Street building and/or the approved DA

builtform of the 59 Goulburn Street building there will be no increase in the number of

apartments that receive “no direct sunlight” and for the residential apartment that currently

receives less than the minimum of 2 hours, the reduction in available solar access is within the

20% limit as specified in Design Guidance Point 3 of Objective 3B-2 of the ADG.

145276




May 15, 2018 Page 14


Street Building & Existing Surrounds onto Mosaic by Meriton (2:50pm)

146277




May 15, 2018 Page 15


Street Building, approved DA 59 Goulburn Street Building & Existing Surrounds onto

Mosaic by Meriton (2:50pm)

147278




May 15, 2018 Page 16


Street Building & Existing Surrounds onto Mosaic by Meriton (3:00pm)

148279




May 15, 2018 Page 17


Street Building, approved DA 59 Goulburn Street Building & Existing Surrounds onto

Mosaic by Meriton (3:00pm)

149280




May 15, 2018 Page 18

2.3 Break Free on George located at 653-659 George Street

An assessment of the existing Break Free on George building located at 653-659 George Street

has been undertaken for the Street has been undertaken for the four surrounds scenarios as

detailed in Section 1 of this report.

The results of the study indicate that the three residential apartments will be affected by the

shadows casted from the proposed 700 George Street building between 9am to 10:10am on

the winter solstice. However an analysis of the existing solar conditions with the inclusion of the

existing 700 George Street building indicates the three residential apartments are already

exposed to a greater overshadowing impact from the existing high-rise towers of the World

Square Site between 9am to 10:40am. Hence the results of the study indicates the proposed

700 George Street building will not cast any additional shadows onto residential apartments of

the Break Free on George building between 9am to 3pm on the winter solstice.

A further analysis indicates that all three residential apartments will achieve a minimum of 2

hours of direct solar access to the living area window(s) between 9am to 3pm on the winter

solstice for four scenarios as detailed in Section 1 of this report. This is due to the three

residential apartment’s exposure to direct sunlight during the remainder of the day from

10.40am onwards. Perspective images of the shadows casted by the proposed 700 George

Street building, high-rise towers of the World Square Site and approved DA builtform of the

651 George Street building between 9am to 3pm on the winter solstice are indicated in Figures

4a to 4h.

150281




May 15, 2018 Page 19


Street Building, high-rise towers of the World Square Site & approved DA 651 George

Street Building onto the Break Free on George Building (9:00am)

151282




May 15, 2018 Page 20




152283




May 15, 2018 Page 21




153284




May 15, 2018 Page 22




154285




May 15, 2018 Page 23

Figure 4e: Perspective Image of the shadows casted by the proposed 700 George


Street Building onto the Break Free on George Building (12:00pm)

155286




May 15, 2018 Page 24

Figure 4f: Perspective Image of the shadows casted by the proposed 700 George



156287




May 15, 2018 Page 25

Figure 4g: Perspective Image of the shadows casted by the proposed 700 George



157288




May 15, 2018 Page 26

Figure 4h: Perspective Image of the shadows casted by the proposed 700 George



158289




May 15, 2018 Page 27

2.4 651 George Street (D/2015/1758)

An assessment of the approved DA builtform of the 651 George Street development has been

undertaken for the two surrounds scenarios as detailed in Section 1 of this report.

The results of the study indicates only the residential apartments along the George Street

frontage are affected by the shadows casted from the proposed 700 George Street building

between 9am to 10am on the winter solstice as indicated in Figures 5a and 5c. However an

analysis of the existing solar conditions with the inclusion of the existing 700 George Street

building indicates the residential apartments are already exposed to a greater overshadowing

impact from the existing high-rise towers of the World Square Site between 9am to 10am as

indicated in Figures 5b and 5d. Hence the results of the study indicates the proposed 700

George Street building will not cast any additional shadows onto residential apartments of the

651 George Street building between 9am to 3pm on the winter solstice.


Street Building onto the 651 George Street Building (9:00am)

159290




May 15, 2018 Page 28


Street and high-rise Towers of the World Square Site onto the 651 George Street

Building (9:00am)

160291




May 15, 2018 Page 29


Street Building onto the 651 George Street Building (10:00am)

161292




May 15, 2018 Page 30


Street and high-rise Towers of the World Square Site onto the 651 George Street

Building (10:00am)

162293




May 15, 2018 Page 31

2.5 Peak Apartments located at 2 Quay Street, Haymarket

An assessment of the existing Peak Apartments Tower located at 2 Quay Street, Haymarket has

been undertaken for the two surrounds scenarios as detailed in Section 1 of this report.

The results of the study indicate that the proposed 700 George Street building will not have an

overshadowing impact on the Peak Apartments Tower between 9am to 3pm on the winter

solstice due to the location and large distance between the two buildings. The shadows casted

only by the proposed 700 George Street building are indicated in Figures 6a and 6b below at

9am and 10am respectively on the winter solstice. The figures indicate the shadow casted by

the proposed 700 George Street building will not be projected onto the Peak Tower from 9am

onwards as Peak Tower is located to the south-east of 700 George Street and the shadows will

travel westward throughout the remainder of the day.

Figure 6a: Perspective Image of the shadows casted by the proposed 700 George St

Building onto the Peak Apartments (9:00am)

163294




May 15, 2018 Page 32


Street Building onto the Peak Apartments (10:00am)

164295




May 15, 2018 Page 33

2.6 Century Tower located at 743-755 George Street

An assessment of the existing Century Tower located at 743-755 George has been undertaken

for the two surrounds scenarios as detailed in Section 1 of this report.


overshadowing impact on the Century Tower between 9am to 3pm on the winter solstice due to

the location and large distance between the two buildings. The shadows casted only by the

proposed 700 George Street building are indicated in Figures 7a and 7b below with the site

location of the Century Tower marked in red at 9am and 10am respectively on the winter

solstice. The figures indicate the shadow casted by the proposed 700 George Street building

will not be projected onto the Century Tower from 9am onwards as Century Tower is located to

the south-east of 700 George Street and the shadows will travel westward throughout the

remainder of the day.

Figure 7a: Perspective Image of the shadows casted by only the proposed 700 George

Street Building onto the Century Tower site location (9:00am)

165296




May 15, 2018 Page 34

Figure 7b: Perspective Image of the shadows casted by only the proposed 700 George

Street Building onto the Century Tower site location (10:00am)

166297




May 15, 2018 Page 35

2.7 Miramar Apartments located at 398-408 Pitt Street

An assessment of the existing Miramar Apartments located at 398-408 Pitt Street has been

undertaken for the four surrounds scenarios as detailed in Section 1 of this report.


overshadowing impact on Miramar Apartments between 9am to 3pm on the winter solstice due

to its location directly west of the 700 George Street building site. Similarly, the approved DA

builtform of the 59 Goulburn Street building will also not have an overshadowing impact on

Miramar Apartments between 9am to 3pm. Perpective images of the shadows casted by only

the proposed 700 George Street and approved DA 59 Goulburn Street buildings at 3pm on the

winter solstice are indicated in Figures 8a and 8b.


Street Building onto Miramar Apartments (3:00pm)

167298




May 15, 2018 Page 36


Street and approved DA 59 Goulburn Street Buildings onto Miramar Apartments

(3:00pm)

168299




May 15, 2018 Page 37

3 REFERENCES

Phillips, R.O., 1992, “Sunshine and Shade in Australasia”, Sixth Edition, CSIRO Publishing.

State Environmental Planning Policy No. 65 (SEPP65), 2015, “Apartment Design Guide”, NSW

Department of Planning and Environment.

169300




May 15, 2018 Page 38

APPENDIX A - SOLAR CHART FOR THE SYDNEY REGION

170301




May 15, 2018 Page 39

Figure A1: Solar Chart for the Sydney Region

171302

WINDTECH Consultants Pty Ltd ABN 72 050 574 037

Head Office: 607 Forest Road, Bexley, NSW 2207, Australia

P +61 2 9503 0300 E [email protected] W www.windtechconsult.com

Sydney | Abu Dhabi | London | Melbourne | Mumbai | New York | Shanghai | Singapore

700 GEORGE STREET, SYDNEY

OVERSHADOWING IMPACT ASSESSMENT

WD574-04F04(REV2)- SA REPORT

DECEMBER 20 2017

Prepared for:

KGH Co Pty Ltd as trustee for KGH Unit Trust

8/142 James Ruse Drive Parramatta, NSW 2150

172303



WD574-04F04(rev2)- SA Report KGH Co Pty Ltd as trustee for KGH Unit Trust

December 20, 2017 Page ii

DOCUMENT CONTROL

Date Revision HistoryIssued

Revision

Prepared By

(initials)

Instructed By

(initials)

Reviewed &Authorised by

(initials)

November 28, 2017

Update of previous report(ref: WD574-01F04(rev0),dated September 21, 2017)

due to design changes.

0 NP/TH KP AB

December 19, 2017 Updated time range 1 TH KP TH

December 20, 2017Updated figures and

comments2 TH KP TH

The work presented in this document was carried out in accordance with the Windtech Consultants Quality Assurance System, which isbased on International Standard ISO 9001.

This document is issued subject to review and authorisation by the Team Leader noted by the initials printed in the last column above. Ifno initials appear, this document shall be considered as preliminary or draft only and no reliance shall be placed upon it other than forinformation to be verified later.

This document is prepared for our Client's particular requirements which are based on a specific brief with limitations as agreed to withthe Client. It is not intended for and should not be relied upon by a third party and no responsibility is undertaken to any third partywithout prior consent provided by Windtech Consultants. The information herein should not be reproduced, presented or reviewed exceptin full. Prior to passing on to a third party, the Client is to fully inform the third party of the specific brief and limitations associated withthe commission.

173304




December 20, 2017 Page iii

EXECUTIVE SUMMARY

This report presents the results of a detailed assessment of the overshadowing impact of the

proposed development located at 700 George Street, Sydney, onto the living area windows of

the various residential apartments of the neighbouring Inmark building, located to the south of

the proposed development site. The analysis has been carried out utilising a detailed 3D

computer model of the subject development and surrounding buildings, and the shadows cast

by these buildings can be visualised within this model.

Shadows are cast over the model based on the path of the sun between 9am to 3pm on the

mid-winter solstice (June 21). The number of residential apartments of the Inmark building

achieving at least 2 hours of direct solar access to at least 1m2 of the living area window(s)

with and without the proposed 700 George Street development has been determined. The

results of the assessment are summarised as follows:

55.3% of the residential apartments of the Inmark Building (126 out of 228) achieve

at least 2 hours of direct solar access to the living area window(s) with the inclusion

of the proposed development of 700 George Street between 9am to 3pm on the mid-

winter solstice (June 21).

84.2% of the residential apartments of the Inmark Building (192 out of 228) achieve

at least 2 hours of direct solar access to the living area window(s) without the

inclusion of the proposed development of 700 George Street between 9am to 3pm on

the mid-winter solstice (June 21).

It should be noted that several design considerations have been made in order to maximise the

direct solar access available to the Inmark Building directly to the south of the 700 George

Street development site. These include increasing the setback distance from the northern

boundary of the Inmark Building beyond the typical 4-6m and the staggered design of the roof

towards the northern boundary. Given the dense, high-rise location of the development, as well

as the orientation and site constraints of 700 George Street, it should be noted that it is

expected to be impractical for a high-rise development within this site to have a similar

overshadowing impact onto the Inmark Building when compared with the existing conditions,

which are comprised of low-rise three storey high buildings.

An additional analysis was undertaken with the time range extended to between 9am to

3:30pm. The results of the analysis indicates that with the inclusion of the proposed

development of 700 George Street, an additional 48 residential apartments; for a total of 174

out of 228 apartments (76.3%), within the Inmark Building will achieve at least 2 hours of

direct solar access to the living area window(s) on the mid-winter solstice (June 21).

Furthermore, expanding the time range up till 4:50pm; which is a conservative estimate of

sunset on the mid-winter solstice, a further 25 residential apartments; for a total of 199 out of

174305




December 20, 2017 Page iv

228 apartments (87.3%), within the Inmark Building will achieve at least 2 hours of direct solar

access to the living area window(s) on the mid-winter solstice (June 21).

175306




December 20, 2017 Page v

CONTENTS

Executive Summary iii

1 Methodology 1

2 Results of Analysis 4

3 References 17

APPENDIX A - Solar Chart for the Sydney Region 18

APPENDIX B - Images From 3D Model – With Proposed Building 20

APPENDIX C - Images From 3D Model – Without Proposed Building 28

176307




December 20, 2017 Page 1

1 METHODOLOGY

The overshadowing analysis is carried out based on a shadow diagram analysis for the

proposed development and the adjacent surroundings in a 3D CAD environment. The study

takes into account any overshadowing effects caused as a result of buildings and their eaves,

overhead protruding balcony slabs, blade walls, etc, and any other feature which may affect

overshadowing. The assessment of overshadowing onto the Inmark building has been

undertaken with and without the proposed 700 George Street development. Perspective images

of the 3D CAD model used for the analysis are presented in Figures 1a to 1d.

Shadows are cast over the model which is based on the path of the sun on the winter solstice

(June 21) respective of the site location. From this simulation, the number of residential

apartments of the Inmark building achieving at least 2 hours of direct solar access to at least

1m2 of the living area window(s) with and without the inclusion of the proposed 700 George

Street development has been calculated.

Figure 1a: Perspective Image of the 3D Computer Model with the Proposed Building

(view from the south-west)

177308





Figure 1b: Perspective Image of the 3D Computer Model with the Proposed Building

(view from the south)

Figure 1c: Perspective Image of the 3D Computer Model with the Proposed Building

(view from the north-east)

178309





Figure 1d: Perspective Image of the 3D Computer Model with the Proposed Building

(view from the west)

179310





2 RESULTS OF ANALYSIS

Perspective images of the 3D CAD model with shadows being cast at various times between

9am and 3pm on June 21 are presented in Appendices B and C of this report with and without

the inclusion of the proposed 700 George Street development. From this the number of

residential apartments of the Inmark building achieving at least 2 hours of direct solar access

to at least 1m2 of the living area window(s) with and without the inclusion of the proposed 700

George Street development has been calculated. The results are summarised below, and

detailed within Table 1.

55.3% of the residential apartments of the Inmark building (126 out of 228) achieve

at least 2 hours of direct solar access to the living area window(s) with the inclusion

of the proposed development of 700 George Street.

84.2% of the residential apartments of the Inmark building (192 out of 228) achieve

at least 2 hours of direct solar access to the living area window(s) without the

inclusion of the proposed development of 700 George Street.

It should be noted that several design considerations have been made in order to maximise the

direct solar access available to the Inmark Building directly to the south of the 700 George

Street development site. These include increasing the setback distance from the northern

boundary of the Inmark Building beyond the typical 4-6m and the staggered design of the roof

towards the northern boundary. Given the dense, high-rise location of the development, as well

as the orientation and site constraints of 700 George Street, it should be noted that it is

expected to be impractical for a high-rise development within this site to have a similar

overshadowing impact onto the Inmark Building when compared with the existing conditions,

which are comprised of low-rise three storey high buildings.

An additional analysis was undertaken with the time range extended to between 9am to

3:30pm. The results of the analysis indicates that with the inclusion of the proposed

development of 700 George Street, an additional 48 residential apartments; for a total of 174

out of 228 apartments (76.3%), within the Inmark Building will achieve at least 2 hours of

direct solar access to the living area window(s) on the mid-winter solstice (June 21). The result

of analysis is detailed in Table 2.

Furthermore, expanding the time range up till 4:50pm; which is a conservative estimate of

sunset on the mid-winter solstice, a further 25 residential apartments; for a total of 199 out of

228 apartments (87.3%), within the Inmark Building will achieve at least 2 hours of direct solar

access to the living area window(s) on the mid-winter solstice (June 21). The result of analysis

is detailed in Table 2.

180311





Table 1: Direct Solar Access for Each Residential Apartment of the Inmark Building

(between 9am and 3pm on the mid-winter solstice)

ApartmentNumber

Achieving at least 2 hours of direct solar accessto 1m2 of the living area window(s)? Affected by the

ProposedDevelopment?With the proposed

developmentWithout the proposed

development

301 YES YES NO

302 NO YES YES

303 NO NO NO

304 NO NO NO

305 YES YES NO

306 YES YES NO

307 YES YES NO

308 YES YES NO

309 YES YES NO

310 YES YES NO

401 YES YES NO

402 NO YES YES

403 NO NO NO

404 NO NO NO

405 YES YES NO

406 YES YES NO

407 YES YES NO

408 YES YES NO

409 YES YES NO

410 YES YES NO

501 YES YES NO

502 NO YES YES

503 NO NO NO

504 NO NO NO

505 NO NO NO

506 NO NO NO

507 YES YES NO

508 YES YES NO

509 YES YES NO

510 YES YES NO

511 YES YES NO

512 YES YES NO

601 YES YES NO

602 NO YES YES

603 NO YES YES

604 NO YES YES

605 NO NO NO

181312





ApartmentNumber




development

606 NO NO NO

607 NO NO NO

608 YES YES NO

609 YES YES NO

610 YES YES NO

611 YES YES NO

612 YES YES NO

613 YES YES NO

701 YES YES NO

702 NO YES YES

703 NO YES YES

704 NO YES YES

705 NO NO NO

706 NO NO NO

707 NO NO NO

708 YES YES NO

709 YES YES NO

710 YES YES NO

711 YES YES NO

712 YES YES NO

713 YES YES NO

801 YES YES NO

802 NO YES YES

803 NO YES YES

804 NO YES YES

805 NO NO NO

806 NO NO NO

807 NO NO NO

808 YES YES NO

809 YES YES NO

810 YES YES NO

811 YES YES NO

812 YES YES NO

813 YES YES NO

901 YES YES NO

902 NO YES YES

903 NO YES YES

904 NO YES YES

905 NO NO NO

906 NO NO NO

182313





ApartmentNumber




development

907 YES YES NO

908 YES YES NO

909 YES YES NO

910 YES YES NO

911 YES YES NO

1001 YES YES NO

1002 NO YES YES

1003 NO YES YES

1004 NO YES YES

1005 NO NO NO

1006 NO NO NO

1007 YES YES NO

1008 YES YES NO

1009 YES YES NO

1010 YES YES NO

1011 YES YES NO

1101 YES YES NO

1102 NO YES YES

1103 NO YES YES

1104 NO YES YES

1105 NO NO NO

1106 NO NO NO

1107 YES YES NO

1108 YES YES NO

1109 YES YES NO

1110 YES YES NO

1111 YES YES NO

1201 YES YES NO

1202 NO YES YES

1203 NO YES YES

1204 NO YES YES

1205 NO NO NO

1206 NO NO NO

1207 YES YES NO

1208 YES YES NO

1209 YES YES NO

1210 YES YES NO

1211 YES YES NO

1301 YES YES NO

1302 NO YES YES

183314





ApartmentNumber




development

1303 NO YES YES

1304 NO YES YES

1305 NO NO NO

1306 NO NO NO

1307 YES YES NO

1308 YES YES NO

1309 YES YES NO

1310 YES YES NO

1311 YES YES NO

1401 YES YES NO

1402 NO YES YES

1403 NO YES YES

1404 NO YES YES

1405 NO NO NO

1406 NO NO NO

1407 YES YES NO

1408 YES YES NO

1409 YES YES NO

1410 YES YES NO

1411 YES YES NO

1501 YES YES NO

1502 NO YES YES

1503 NO YES YES

1504 NO YES YES

1505 NO NO NO

1506 NO NO NO

1507 YES YES NO

1508 YES YES NO

1509 YES YES NO

1510 YES YES NO

1511 YES YES NO

1601 YES YES NO

1602 NO YES YES

1603 NO YES YES

1604 NO YES YES

1605 NO NO NO

1606 NO NO NO

1607 YES YES NO

1608 YES YES NO

1609 YES YES NO

184315





ApartmentNumber




development

1610 YES YES NO

1611 YES YES NO

1701 YES YES NO

1702 NO YES YES

1703 NO YES YES

1704 NO YES YES

1705 NO NO NO

1706 NO NO NO

1707 YES YES NO

1708 YES YES NO

1709 YES YES NO

1710 YES YES NO

1711 YES YES NO

1801 YES YES NO

1802 NO YES YES

1803 NO YES YES

1804 NO YES YES

1805 NO NO NO

1806 YES YES NO

1807 YES YES NO

1808 YES YES NO

1809 YES YES NO

1810 YES YES NO

1901 YES YES NO

1902 NO YES YES

1903 NO YES YES

2001 YES YES NO

2002 NO YES YES

2003 NO YES YES

2101 YES YES NO

2102 NO YES YES

2103 NO YES YES

2201 YES YES NO

2202 NO YES YES

2203 NO YES YES

2301 YES YES NO

2302 NO YES YES

2303 NO YES YES

2401 YES YES NO

2402 NO YES YES

185316





ApartmentNumber




development

2403 NO YES YES

2501 YES YES NO

2502 NO YES YES

2503 NO YES YES

2601 YES YES NO

2602 NO YES YES

2603 NO YES YES

2701 YES YES NO

2702 NO YES YES

2703 NO YES YES

2801 YES YES NO

2802 NO YES YES

2803 NO YES YES

2901 YES YES NO

2902 NO YES YES

2903 NO YES YES

3001 YES YES NO

3002 NO YES YES

3003 NO YES YES

3101 YES YES NO

3102 YES YES NO

3103 YES YES NO

3201 YES YES NO

3202 YES YES NO

3203 YES YES NO

3301 YES YES NO

3302 YES YES NO

3303 YES YES NO

3401 YES YES NO

3402 YES YES NO

3403 YES YES NO

186317





Table 2: Direct Solar Access for Each Residential Apartment of the Inmark Building

with the inclusion of the proposed development at 700 George St.

(between 9am to 3:30pm/4:50pm on the mid-winter solstice)

Apartment Number

Achieving at least 2 hours of direct solar accessto 1m2 of the living area window(s)?

Between 9am to 3:30pmBetween 9am to 4:50pm

(sunset estimate)

301 YES YES

302 NO NO

303 YES YES

304 YES YES

305 YES YES

306 YES YES

307 YES YES

308 YES YES

309 YES YES

310 YES YES

401 YES YES

402 NO YES

403 YES YES

404 YES YES

405 YES YES

406 YES YES

407 YES YES

408 YES YES

409 YES YES

410 YES YES

501 YES YES

502 NO YES

503 NO NO

504 YES YES

505 YES YES

506 YES YES

507 YES YES

508 YES YES

509 YES YES

510 YES YES

511 YES YES

512 YES YES

601 YES YES

602 NO YES

603 NO NO

604 NO NO

187318





Apartment Number



(sunset estimate)

605 YES YES

606 YES YES

607 YES YES

608 YES YES

609 YES YES

610 YES YES

611 YES YES

612 YES YES

613 YES YES

701 YES YES

702 YES YES

703 NO NO

704 NO NO

705 YES YES

706 YES YES

707 YES YES

708 YES YES

709 YES YES

710 YES YES

711 YES YES

712 YES YES

713 YES YES

801 YES YES

802 YES YES

803 NO NO

804 NO NO

805 YES YES

806 YES YES

807 YES YES

808 YES YES

809 YES YES

810 YES YES

811 YES YES

812 YES YES

813 YES YES

901 YES YES

902 YES YES

903 NO NO

904 NO NO

905 YES YES

188319





Apartment Number



(sunset estimate)

906 YES YES

907 YES YES

908 YES YES

909 YES YES

910 YES YES

911 YES YES

1001 YES YES

1002 YES YES

1003 NO NO

1004 NO NO

1005 YES YES

1006 YES YES

1007 YES YES

1008 YES YES

1009 YES YES

1010 YES YES

1011 YES YES

1101 YES YES

1102 YES YES

1103 NO YES

1104 NO NO

1105 YES YES

1106 YES YES

1107 YES YES

1108 YES YES

1109 YES YES

1110 YES YES

1111 YES YES

1201 YES YES

1202 YES YES

1203 NO YES

1204 NO NO

1205 YES YES

1206 YES YES

1207 YES YES

1208 YES YES

1209 YES YES

1210 YES YES

1211 YES YES

1301 YES YES

189320





Apartment Number



(sunset estimate)

1302 YES YES

1303 NO YES

1304 NO NO

1305 YES YES

1306 YES YES

1307 YES YES

1308 YES YES

1309 YES YES

1310 YES YES

1311 YES YES

1401 YES YES

1402 YES YES

1403 NO YES

1404 NO NO

1405 YES YES

1406 YES YES

1407 YES YES

1408 YES YES

1409 YES YES

1410 YES YES

1411 YES YES

1501 YES YES

1502 YES YES

1503 NO YES

1504 NO NO

1505 YES YES

1506 YES YES

1507 YES YES

1508 YES YES

1509 YES YES

1510 YES YES

1511 YES YES

1601 YES YES

1602 YES YES

1603 NO YES

1604 NO NO

1605 YES YES

1606 YES YES

1607 YES YES

1608 YES YES

190321





Apartment Number



(sunset estimate)

1609 YES YES

1610 YES YES

1611 YES YES

1701 YES YES

1702 YES YES

1703 NO YES

1704 NO NO

1705 YES YES

1706 YES YES

1707 YES YES

1708 YES YES

1709 YES YES

1710 YES YES

1711 YES YES

1801 YES YES

1802 YES YES

1803 NO YES

1804 NO NO

1805 YES YES

1806 YES YES

1807 YES YES

1808 YES YES

1809 YES YES

1810 YES YES

1901 YES YES

1902 NO YES

1903 NO NO

2001 YES YES

2002 NO YES

2003 NO YES

2101 YES YES

2102 NO YES

2103 NO YES

2201 YES YES

2202 NO YES

2203 NO NO

2301 YES YES

2302 NO YES

2303 NO NO

2401 YES YES

191322





Apartment Number



(sunset estimate)

2402 NO YES

2403 NO NO

2501 YES YES

2502 NO YES

2503 NO NO

2601 YES YES

2602 NO YES

2603 NO NO

2701 YES YES

2702 NO YES

2703 NO NO

2801 YES YES

2802 NO YES

2803 NO NO

2901 YES YES

2902 NO YES

2903 NO NO

3001 YES YES

3002 YES YES

3003 NO YES

3101 YES YES

3102 YES YES

3103 YES YES

3201 YES YES

3202 YES YES

3203 YES YES

3301 YES YES

3302 YES YES

3303 YES YES

3401 YES YES

3402 YES YES

3403 YES YES

192323





3 REFERENCES

Phillips, R.O., 1992, “Sunshine and Shade in Australasia”, Sixth Edition, CSIRO Publishing.

State Environmental Planning Policy No. 65 (SEPP65), 2015, “Apartment Design Guide”, NSW

Department of Planning and Environment.

193324





APPENDIX A - SOLAR CHART FOR THE SYDNEY REGION

194325





Figure A1: Solar Chart for the Sydney Region

195326





APPENDIX B - IMAGES FROM 3D MODEL – WITH PROPOSED BUILDING

196327





Figure B1: Perspective View from the North-West (9:00am)


197328






Figure B4: Perspective View from the North-West (12:00pm)

198329







199330






Figure B8: Perspective View from Above (9:00am)

200331







201332





Figure B11: Perspective View from Above (12:00pm)


202333







203334





APPENDIX C - IMAGES FROM 3D MODEL – WITHOUT PROPOSED BUILDING

204335





Figure C1: Perspective View from the North-West (9:00am)


205336






Figure C4: Perspective View from the North-West (12:00pm)

206337







207338






Figure C8: Perspective View from Above (9:00am)

208339







209340





Figure C11: Perspective View from Above (12:00pm)


210341







211342

(Public Pack)Agenda Document for Central Sydney Planning ...€¦ · WINDTECH Consultants Pty Ltd....

Documents

Transcript of (Public Pack)Agenda Document for Central Sydney Planning ...€¦ · WINDTECH Consultants Pty Ltd....