Minimum provisions designed from National Building Code (published in 1970, revised in 2005) by
Town Planning Authorities, Urban Development Authorities and Municipalities, to
protect the inmates living in the house, neighbours and public passing by the
side of the building against structural failures, fire accidents and insanitary
conditions are called BUILDING BYE-LAWS.
PURPOSE OF BUILDING BYE-LAWS
Modes of construction varies from region to region depending upon motive of owners, availability of materials, labour, construction and weather conditions. If certain rules and regulations are not made, house owner
may construct residential building as per his whims and fancies. Hence, it is
essential to maintain and implement the bye-laws to provide proper ventilation,
privacy, security and safety between the neighbours.
OBJECTIVES OF
BUILDING BYE-LAWS
•
Allows disciplined and systematic growth of
buildings and towns and prevent haphazard development.
•
Protect safety of public against fire, noise,
health hazards and structural failures.
•
Provide proper utilization of space. Hence,
maximum efficiency in planning can be derived from these bye laws.
•
They give guidelines to the architect or an
engineer in effective planning and useful in preplanning the building
activates.
•
They provide health, safety and comfort to the
people who live in buildings.
•
Due to these bye-laws, each building will have
proper approaches, light, air and ventilation which are essential for health,
safety and comfort.
MINIMUM PLOT SIZES
AND BUILDING FRONTAGE
• That is, it is the width of clearance of land to be left (before a road) within the private plot to facilitate
• Widening of roads in future,
• More sight distance at junctions avoiding blind corners,
• Minimizing sound pollution for inmates of the house, and
• To create a buffer space between public (i.e. roads) and private (plot) properties.
• Residential buildings require minimum clearance. Public buildings require more clearance. Commercial buildings as cinema halls which release a lot of rush at a time need still more clearance.
• Set back line or Front building line is the line (inside the plot) upto which we can extend our construction.
• Each plot shall have a minimum size of frontage corresponding to the type of development as given in table.
|
Type of residential building
|
Plot size (sq. m)
|
Frontage (m)
|
|
Detached
building
|
Above
250
|
Above
12
|
|
Semi-detached
building
|
125-250
|
8 to 12
|
|
Row
type building
|
50-125
|
4.5
to 8
|
 |
| Figure 1. Building Set-back |
OPEN SPACES
FRONT OPEN SPACE
|
Width of Street abutting the
plot (m)
|
Front open space minimum (m)
|
|
Upto
7.5
|
1.5
|
|
7.5 to 18
|
3.0
|
|
18
to 30
|
4.5
|
|
Above 30
|
6.0
|
SIDE AND REAR OPEN
SPACE
|
Height of building (m)
|
Side and rear open spaces (m)
|
|
10
|
3
|
|
15
|
5
|
|
18
|
6
|
|
21
|
7
|
|
24
|
8
|
|
27
|
9
|
|
30
|
10
|
|
40
|
12
|
|
45
|
13
|
|
50
|
14
|
|
55
and above
|
16
|
INTERIOR SPACE
REQUIREMENT
MINIMUM SIZE OF
DIFFERENT ROOMS
|
NO.
|
NAME OF ROOM
|
MINIMUM SIZE
|
|
1
|
Habitable
room
a) Bed
room
b) Living
room
c) Drawing
room
d) Dining
room
e) Study
room
|
9.5
sq. m
|
|
2
|
Kitchen
|
5 sq. m
|
|
3
|
a) Bath
room
b) Water
closets
|
1.8
sq. m
1.1
sq. m
|
|
4
|
Store room
|
3 sq. m
|
|
5
|
Garage
|
12.5
sq. m
|
|
6
|
Staircase
|
15 sq. m
|
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