Building Bye Laws - Important of Byelaws.

• Introduction:

These are the restriction laid down by the municipal, town planning, town planning or revenue authorities on construction and planing of different type of buildings.so that Building Bye-Laws is very important to know before you construct any type of structure small as well as big. this construction is must be constructed based on building bye-laws if this construction is not as per government building bye-laws then the government has legally destroyed your structure so that we must need to know all building bye-laws before construction of ay type of structure.

Building Bye Laws - Important of Byelaws

• What is building Bye-Laws?

    According to the definition, building bye-laws are the norms set forth by the government authorities such as Ministry of Urban Development Affairs (MUDA), City Corporation and Developing Authorities, for

These norms are legal tools that regulate architectural and construction aspects of buildings to achieve orderly development in an area.

• Thus building Byelaws is different from place to place as per it need for example building bye laws is not same as that of the same district or taluka place having municipality.

• Important / uses of Building bye-laws :

1. Future us of land , widening of the street , controlling the ribbon development.
2. For Proper ventilation of the building, privacy purposes.
3. For laying water supply line in the residential area.
4. To ensure that every citizen will receive facilities like water, sanitation, electric supply parking and safety. 

• Building Byelaws for residential buildings and Regulations: The building byelaws oversee the following rules and regulations of building features.

1.     Set back or building line

2.     Floor Area Ratio (FAR) or Floor Space Index (FSI) or Total built-up area

3.     Open space requirements all over the building

4.     Internal dimensions of rooms, kitchen, living, etc.

5.     Height of building and floor height.

6.     Lighting & ventilation of rooms.

1.Set Back or building line:

  It is the distance measured from centerline of road up to which plinth of building may extended.it is provided for road widening, parking,circulation of air,etc. 

Type of Road	Maximum setback distance		Ratio of column 3 to column 2
	Residential Building	Industrial Building
Village Road	9 m	15 m	1.67
Major district Road	15 m	24 m	1.60
National or State Highway	30 m	45 m	1.50

2. Floor Area Ratio (FAR) or Floor Space Index (FSI) or Total built-up area:

• Total Build-Up Area = Total site area - open site spaces area

• Floor Area = Built-up area(plinth area) - area of wall thickness

SL. NO.	Plot Area	Max. Allowable built-up area
1.	Less than 200 sq. m	60% with 2 storied structure
2.	From 200 – 500 sq.m	50 % of the plot area
3.	From 500 – 1000 sq.m	40% of the plot area
4.	Above 1000 sq.m	33.33% of the plot area

3.Open space requirement all over the buildings:

 open space is provided for lightening,ventilation,future expansion,and approch.

sr.no	Height of building	Open space (setback) requirement
1.	< 10 m	row2 column3
2.	From 10 m – 25 m	Requirement as per above item no. 1 is increased at the rate of 1 m for every 3 m or fraction thereof.
3.	From 25 m – 30 m	Minimum 10 m.
4.	> 10 m	Min. 10 m. is increased by at the rate of 1 m for every 5 m or fraction thereof subject to a max. 16 m

Sr.no	Height of building in Meters	Exterior open spaces/setbacks to be left on all sides. Minimum in meters
1	Above 9.5 up to 12	4.5
2	Above 12 up to 15	5
3	Above 15 up to 18	6
4	Above 18 up to 21	7
5	Above 21 up to 24	8
6	Above 24 up to 27	9
7	Above 27 up to 30	10
8	Above 30 up to 35	11
9	Above 35 up to 40	12
10	Above 40 up to 45	13
11	Above 45 up to 50	14
12	Above 50	15

4. Internal dimension of building:

Internal dimension is very important for get good/more space for movement.

Sr.no	Type of room	Minimum area
1	One habitable room	9.5 sq.m, Min. width – 2.4 m
2	Two habitable rooms	Min. area of 1 room 9.5 sq.m & of other 7.5 Sq.m with min. width of 2.4 m
3	Kitchen only	4.5 sq.m, Min. width 1.8 m
4	Kitchen including storeroom	5.5 sq.m, Min. width of the kitchen – 1.8 m
5	Kitchen cum dining room	9.5 sq.m, Min. width 2.4 m
6	Bathroom	1.8 sq.m or Min. size 1.5 m x 1.2 m
7	Water closet (WC)	1.1 sq. m Floor Area
8	Bath & WC combined	2.8 sq.m (Floor area) – Min. width 1.2 m
9	Mezzanine floor (Living room )	9.5 sq.m ( > 1/3rd of the plinth area of the Building)

5.Hight of the buildings:

Hight of building for prevent water in rainy season.

Sr.no	Height of the building	Width of the Road
1	General criteria – 1.5 times the width of the road	-
2	Not more than 12 m	Above 8 m or Equal to 12 m
3	Not more than road width and not > 24m	Above 12 m

6.For lighting and ventilation building: 

Sr.no	Openings of the building	The floor area of the room
1	For dry and hot climate excluding door areas	Min. 1/10th of floor area
2	For Wet hot climate excluding door areas	Min. 1/6th of floor area
3	The total doors, windows, and ventilators	< than 1/7th of floor area

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