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…