Building Bye Laws for Buildings

1. BUILDING BYE LAWS

3. PROBLEMS
If no proper bye laws are implemented than
following problems are arise
• Irregular and narrow roads
• Frequent traffic problems
• Creation of noise and nuisance
• Problem in development of service like water
supply, drainage, telephone, fire, electricity
• Poor lighting and ventilation
• Lack of recreational facilities

4. Definition
Byelaws:-The construction of any building,
certain restrictions are laid down by Municipal
bodies, Urban Development Authorities and
other town planning trusts to clear open spaces
to be left round the building.
Example:- Government Department, City
Corporation,UDA,….ETC

5. What is building byelaws
Taking into consideration of local situation and
the actual requirements of local people the
local authorities or state government prepare
certain rules for the building and for the
development of town is known as building
byelaws.

6. TYPES OF BUILDINGS
ASSEMBLY BUILDING:-Means a building or part there of where groups of people
congregate or gather for social, religious, civil, travel and similar purposes.
Assembly building include buildings of drama and cinema theatres, city halls, town halls,
auditoria, exhibition halls, museums, marriage hall, restaurants, eating or boarding houses, place
of worship, dance halls, clubs,…etc.
BUSINESS BUILDING:-Means any building or part used for transaction of record for
offices, bank,…etc.
EDUCATIONAL BUILDING:-Means a building exclusively used for a school or college,
recognised by the appropriate Board or University.
Library, Staff Quarters can be considered as educational building.
HAZARDOUS BUILDING:-Means a building or part there of used for Storage, handling,
manufacture or processing of materials, products, Chemicals,…etc.
INDUSTRIAL BUILDING:-Means a building or part there of where in products or, material
are fabricated, assembled or processed, such as assembly plants, laboratories, power plants,
refineries, gas plants, mills dairies and factories.
INSTITUTIONAL BUILDING:-Means a building constructed by Government, Semi-
Government organisations, public sector undertakings, registered Charitable Trusts for their
public activities, such as education, medical, recreational and cultural , hostel for working
women or men or for an auditorium or complex for cultural activities

7. MERCANTILE BUILDING:-Means buildings used as shops, stores or markets, for display
and sale of wholesale or retail goods or merchandise, including office, storage.
OFFICE BUILDING:-Means a building used for purpose of administration, clerical work,
handling money, telephone, telegraph and computer operation, and clerical work" includes
writing, book keeping, sorting papers typing, duplicating.
SPECIAL BUILDING:-Means a building used for the purpose of a drama or cinema theatre,
picture a drive-in-theatre, an assembly hall or auditorium, town hall, lecture hall, an exhibition
hall, theatre museum, stadium, community hall, marriage hall.
RESIDENTIAL BUILDING:-Means a building in which sleeping accommodation with or
without cooking or dining facilities, lodging or boarding houses, hostels, dormitories, apartment
houses, flats and private garages of such buildings.
LOW-RISE BUILDING:- Mean a building having height up to 16.50 mts. and having
ground floor plus four floors.
HIGH-RISE BUILDING:-Mean building other than low-rise building provided the
maximum permissible height shall not exceed 40 mts.

8. DETACHED BUILDING:-Means a building with walls and roofs independent of any other
building and with open spaces on all sides. Plot Area:-More than 250 Sq.mtr

9. SEMI DETACHED BUILDING:-Means the building having one side attached with
wall and roof with other building. Plot Area:-125 to 250 Sq.mtr

10. ATTACHED BUILDING:-Means the building having two or more side attached with
wall and roof with other Building. Plot Area:- 50 to 125 Sq.mtr

11. Building Line:- It is a line upto which the plinth of a
building adjoining a street may be law-fully extended.
This line shown in development plan of town planning scheme.
The building line may change from time to time
as decided by the authority.

12. Control Line:- Line parallel to the center line of road at a
distance as decided by the authority.
Major public building like factory,hotels,hospitals etc.are not
permitted between control line and center line of road.
Security cabin, parking space..etc may be permitted considering
rules for building line

13. Building Unit:-It is one or more than plots
approved by the competent authority.
For width of plot less than 10.5 meter.
Types of Development Area of Plot (in m2)
Row Houses 50 to 125
Semidetached Building 125 to 250
Detached Building More than 250

14. PLOT AREA

15. Common Open Plot:- Shall mean a common open space
exclusive of margins and approaches, at a height not more than
ground level of the building unit.
 The common plot area shall be exclusive of approaches,
margins.
 No projection shall be permitted in common plot.
 Minimum size of the common plot shall be 225 sq.mts with
no side less than 10.50 Mts.
 No construction shall be permitted in the common plot. Only
electric substation, over head water tank, underground water
tank, watchman room, community hall, tube well.
 Minimum area should not be less than 10% or maximum
15% of respective common plot area.
 The area of this common plot shall be not deducted for the
consideration of Floor Space Index of a building unit.

16. BUILT UPAREA:-Area of all floors above or below the
ground level of the buildings.
It includes Basements
Building structures
Out houses
Garages
W.C. and Bath
Servants rooms
Ramps
Ducts
Swimming pools
Covered cantilever portion
It is not includes
Steps, Verandah, otta,Chokdi,Kundi,Soakpit,
water tanks,Manhole,Fountains.

17. PLOT AREA AND BUILT UP AREA
AREA OF PLOT IN M2
MAXIMUM PERMISSIBLE AREA ON ANY
FLOOR . % OF PLOT AREA
18 to 25 75%
25 to 50 75% or 19 m2 whichever is more
50 to 90 75%
90 to 150 60 % or 67.5 m2 whichever is more
150 to 250 50 % or 90 m2 whichever is more
More than 250 45% or 150 m2 whichever is more
High rise building having 1500 m2 or
more area
25%

18. FLOOR AREA:-It is the usable area on each floor
CARPET AREA:- Net usable area within building which
exclude areas that is covered by walls.
Following area is deducted verandah, passages, porch, lift,
w.c, Bath, Kitchen, Canteen, Store, Open to sky, thickness of
wall.
PLINTH AREA:-Area of each floor covered by roof.
BASEMENT:-It is the cellar below the ground level OR
lower storey of a building having minimum half the clear floor
height of the basement.

19. MARGINS:-It is the space left from the
plot boundary to the building
Right Margin
Front Margin
Left Margin
Rear Margin
R O A D

20. MARGINS
WIDTH OF ROAD ROAD SIDE MARGIN
9.0 m or Less 3.0 m
9m to 12m 4.5 m
12m to 18m 6.0 m
18m to 30m 7.5 m
30m to 60m 9.0 m
More than 60 m 12.0 m
FRONT OR ROAD SIDE MARGINS

21. Margins on side other than road
AREA OF PLOT (in M2) MARGINS (in m)
18 to 25 1.0
25 to 50 1.5
50 to 75 2.0
90 to 150 2.25
150 to 250 2.5 (Backside), 1.5 (Other sides)
More than 250 3.0

22. FLOOR SPACE INDEX (FSI) OR
FLOOR AREA RATIO (FAR)
It is a quotent obtained by dividing the total
covered area(plinth)on all floors by the area of the plot.
It does not include parking, ducts, basement
used for parking, security cabins, water room, electricity
room, stair cabin, water tank.
FSI = Total covered area of all floors
Plot area

23. F.S.I OR F.A.R for Zones
ZONE Maximum Permissible F.S.I
Residential
(sanctioned)
Residential
(New Proposed)
1.8
1.2
Natural growth of village 1.2
Commercial 1.8
Industrial 1.0

24. Planning for a Residential Building
• PLOT SIZE: 17000 X 14000
• PLINTH HEIGHT: 600
• FLOOR HEIGHT:3000
• WALL THICKNESS 300 & 200
• PARAPET:600
• SLAB THICKNESS :150
•Road Width: 9000
•FSI:1.2
•STAIR STEP DESIGN :- MAXI. RISER : 150
MIN TREAD : 300
PROVIDE:-
DRAWING ROOM,
BED ROOM,
KITCHEN,
VERANDAH ,
BATH,
W.C…ETC.
All Dimension in mm

25. 17000
14000
N
9.0 Mtr WIDE ROAD IN SOUTH
PLOT: 17000 X 14000
G.F. BUILT UP AREA(88.00m2)
F.M. 3000
R.M. 3000
S.M.
3000
S.M.
3000
11
8

26. PERMISSIBLE BUILT-UP AREA
• PLOT SIZE: 17000 X 14000 (238.00m2)
• Rules 01 = 45% of Plot Area
= {(45% *(17 * 14)}
= 107.10m2
G.F Built up Area =11.00 X 8.00
= 88.00m2 < 107.10m2
Then OK…

27. FSI CALCULATION
FSI = Total covered built up area of all floors
Plot area
1.2 = Total covered built up area of all floors
238.00
Total covered built up area of all floors = 285.60m2
NOS OF FLOOR = 285.60 = 3.24
88.00

28. 17000
14000
N
9.0 Mtr WIDE ROAD IN SOUTH
PLOT: 17000 X 14000
G.F. BUILT UP AREA(88.00m2)
F.M. 3000
R.M. 3000
S.M.
3000
S.M.
3000
11
8
F.F. BUILT UP
AREA(54.00m2)
09
6

29. PRAPOSED FSI
G.F Built up Area = 11.00 X 8.00
= 88.00m2
F.F Built up Area = 9.00 X 6.00
= 54.00m2
FSI = Total covered area of all floors
Plot area
= G.F. Built up Area + FF. Built up Area + S.F..+ T.F…
Plot area
= 88.00 + 54.00 + 54.00 + 54.00
238.00
Use FSI = 1.05 < 1.2 then OK….

30. PLINTH:-Height of plinth should not be less than 45 cms. above
the level of the plot.
Not plinth height is necessary for a garage.
PARAPET:- Means a low wall or railing built along the edge of
roof of a floor.
VERANDAH:-A covered area with at least one side open to the
outside with the exception of 1m high parapet on the upper floors to
be provided on the open side.
PASSAGES:- Means horizontal circulation in house.
VENTILATION:- The area of clear opening excluding frames
like, windows.
 The area should not be less than 1/10 of the floor area.
.

31. PARKING SPACE:- Means an enclosed or
unenclosed covered or open area sufficient in size to park
vehicles, including driveway connecting them with a
street.
Vehicle Area required for
parking
Car 14 m2
Scooter/Bike..etc 1.25 m2
Cycle 0.8 to 1.0 m2

32. Height of building:-Maximum height of building will depend
upon the width of street on which the building constructed.
Height should not exceed 33 m.
Parapet up to 1.5 m which shall not be considered for calculating
the height of building.
Width of road Permissible height of
building up to
6 to 9 m 10 m
9 to 12 m 13 m
More than 12 m As per high rise building

33. Habitable Room:-A room occupied or designed for occupancy
by one or more persons for study,living,sleeping,kitchen if it is used
as living room.(Not including:- bathrooms, water
closet,store,pantries,..etc.)
Height of habitable room not greater than 2.75 m
Head Room:-Clear Height from top floor to the bottom of
ceiling.
Mezzanine floor:-It is an additional floor provided between two
consecutive floors.
It should not be used as a kitchen
It should be properly ventilated and its area should not be less than
9.5 m2

34. Dimensions of rooms
ROOMS WIDTH HEIGHT AREA
Habitable room, living room, bed
rooms, drawing rooms, dining,
study room
2.4 m 2.75 m 9.5 m2
Kitchen only 1.8 2.75 4.5
Kitchen + Store 1.8 2.75 5.0
Kitchen + Dining 2.1 2.75 7.5
Bath rooms 1.2 2.0 1.8
Bath + W.C. 1.2 2.0 2.8
W.C. 0.9 2.0 1.1
Store 2.2 3.0
Note:-Minimum Requirements Dimensions Of Rooms as per NBC

35. STAIR
Minimum width
TYPES OF BUILDING WIDTH OF STAIR IN
METER
Residential 1.0
Hotels 1.5
Cinema, theatres,
auditorium
1.5
Educational institution
Upto 24.0 height
More than 24.0 height
1.5
2.0
Hospitals
Upto 10 beds
More than 10 beds
1.5
2.0
Other building 1.5
Minimum Tread:
25 cm for residential
30 cm for other
Maximum Riser:
19 cm for residential
15 cm for other

36. COLOUR CODE FOR DRAWING
NO ITEM PLAN SYMBOL
1 Boundary Plot lines Thick Black
2 Existing street Green
3 Proposed road, Future street Green dotted
4 Permissible building line Thick dotted black
5 Open space No colour
6 Existing work Blue
7 Work proposed to be demolished Yellow hatched
8 Proposed work Red
9 Drainage and sewage work Red dotted
10 Water supply work Black dotted thin

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39.  PREPARED BY:
SUDHIR b. PRAJAPATI
(G.E.S. CLASS-II OFFICER)

40. SR.
NO
NAME OF ROOM MIN. AREA
SQ.M
MIN.
HEIGHT
IN m.
1 BED ROOM /
DINING ROOM
12 3.0
2 DRAWING ROOM 15 3.0
3 KITCHEN 5.5 3.0
4 STORE 5.5 2.5
5 BATH 1.8 2.2
6 W.C. 1.1 2.2
7 VERANDAH 1.5M.WIDE 2.2
8 BATH WITH W.C. 2.8 2.2
AREA OF ROOM

41. Planning for a SINGLE STOREYED
RESIDENTIAL BUILDING
• PLOT SIZE: 19000 X 16000
• PLINTH HEIGHT: 600
• FLOOR HEIGHT:3000
• WALL THICKNESS 300 & 200
• PARAPET:600
• SLAB THICKNESS :150
• Road Width: 9500
•STAIR CASE DESIGN :- MAXI. RISER : 150
MIN TREAD : 300
PROVIDE:-
DRAWING ROOM,
BED ROOM,
KITCHEN,
VERANDAH ,
BATH,
W.C.,
INSIDE STAIR….
ETC.

42. PLANNING FOR A SINGLE STOREYED RESIDENTIAL BUILDING
DATA
LAST
DIGIT
NO.
PLOT SIZE IN MM POSITION
OF NORTH
ROAD SIDE
1 16000 X 18000 NORTH
2 17000 X 19000 EAST
3 18000 X 19000 SOUTH
4 19000 X 16000 WEST
5 20000 X 15000 WEST
6 16000 X 18000 SOUTH
7 17000 X 19000 EAST
8 18000 X 19000 NORTH
9 19000 X 16000 EAST
0 20000 X 15000 WEST

43. STAIR
CASE
DESIGN
PLINTH
RISE
TREAD
LANDING
FLOOR
Height 3000
1000
200
300
1000
Landing Plan
Section xy
x Y
09
11 12
08 07 06 05 04 03 02 01
13 14 15 16 17 18 19
10
1000

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