Muscat MunicipalityLocal Order No. 23/92

Building Regulation For Muscat

ReemAsma

1. Area and Dimensions of Rooms : • The minimum areas and dimensions of rooms in buildings are

determined a cording to the following :•

Description Minimum area ( Sq. . M)

Least Dimension

Bedrooms 12.00 3.00

Office 8.10 2.70

Shop or showroom 8.10 2.70

Kitchen 5.00 2.00

Bathroom 4.00 1.80

Toilet 1.50 0.90

Bedroom Office & Shop or showroom

Kitchen

Bathroom

Toilet

mm

mm

m

m

mm

m m

• Rooms and other building facilities should be provided with an opining or openings ( windows ) for ventilations and natural lighting .

• The minimum area of an opining should be as follows :1. 7% the ground area of a residential room or office .2. 5% the ground area of a bathroom and toilet .3. 6% the ground area of a stair will in the same floor .

Description Minimum area ( Sq. . M)

The minimum area of an opining

Bedrooms 12.00 12*(7/100)

Office 8.10 8.10* (7/100)

Shop or showroom 8.10 8.10*(7/100)

Kitchen 5.00 5.00*(6/100)

Bathroom 4.00 4.0*(5/100)

Toilet 1.50 1.5*(5/100)

2- windows and Door

3. Internal Heights :• Article 1 : • In residential areas the minimum headroom shall be as follows

:A. Ground floor or one-storey buildings . 3.00 m up to 4.00 m

maximum .B. Upper floors 2.80 m up to 3.60 m maximum .

2.8 to 3.6

2.8 to 3.6

3.00 up to 4.00

Ground floor or one-storey buildings

• Article 2 :• In Commercial and Commercial Residential Building the

minimum net headroom shall be follows :A. Ground floor 4.00 m up to 4.75 m maximum in case there is

no mezzanine .B. In case of mezzanine , the minimum height of ground floor

should be 6m.C. The minimum height of mezzanine is 2.60 m to 3.00 m

maximum .D. Upper floors 2.80 to 3.60 maximum .

6m

2.60 m to 3.00m

2.80 m to 3.60m

With mezzanine

2.8 to 3.6m

2.8 to 3.6 m

4.00 up to 4.75 m

Without mezzanine

mezzanine

4. Industrial Areas :

A. The height for workshops , store rooms and factories with sheds should be 8m maximum .

B. For workshops and stores built in reinforced concrete with no mezzanine the height may be 4.5 m minimum or 6 m t0 7 m maximum .

8m

store rooms and factories with sheds

4 or 6-7 m

workshops and stores built in reinforced concrete

Building A set-back area

single storied buildings or the ground floor of multistoried building

1.50 m. minimum shall be left

up to seven floors, ground floor is not included

A set-back 3 m shall be left ,openings is less than 15% of

floors above the 7th floor (ground floor not included

set-back shall be 5 m

No openings or windows road, of width 6 m. minimum

edge of the road shall be half the difference between the width of the

existing road and.6 m.

5-Set-backs

building

Road 6m

edge

Ground floor

1.50 m

1-7 floor

3.0 m

more7 floor

5.0 m

edge =0.5(the existing road -6)

A

B

B

C

6. Car Parks : • Car parks shall be provided in each building according to the

use of the building .Area No. Parking

Residential Areas 1 car park

Commercial and Commercial-Residential Area 1 car for flat, shop, office, plus 1 for every additional 50 sq.m.

Industrial and Warehouses Area One car park at least for every five employees.

Cinemas, Theatres and Entertainment Centres One car park at least for every 15 seats.

Clubs and Similar Facilities One car park at least for every 12 Sq.m.

Hotels

Five Star Hotels : A car park for every 3 beds

Four Star Hotels : A car park for every 5 beds

Three Star Hotels : A car park for every 10 beds

Examples : • A commercial all of area 300 m2 .

300 – 100 = 200 m2 . 200/50 = 4No of car = 4+1 = 5 car parking .

• The dimension of parks whether on road sides :

Length : 5m Width : 2.40 m

2.40 m

W

5.00

m

L

• The minimum width of paths within car parks is as follows : A. * Parallel Parking :

B . Inclined Parking :

C. Perpendicular ( Right angle ) :

Path = 3 m

Path = 3.5 m makes an angle of 45

Path = 6 m .

8

7

6

5

4

3

2

1

more than three floors or height more than 13.5m &area more than 350 sq.m

corridors, emergency exits or additional stairs leading directly outside

7- Safety means and Precautions against Fire

4

3

2

1

Less than four floors and floor area of 450 sq.m., maximum

staircase condition provided and no need for other.

exit

not be more than 10m

Door

The distance from escape staircase

20 cm

90 cm

The staircase provided for escape

The number of steps Seeding in one direction shall not exceed 12

exit not be more than 7.50m

Door

The distance from the door at any bedroom

• Staircases, emergency exits, corridors and walls shall

be capable of resisting fire for half an hour.

• Doors of bedrooms, kitchen and the main entrance of

the unit shall be fire resistant for half an hour at least.

Materials use for safety

corridors

emergency exits

stairs leading directly outside

Thank you…