Some of Building Regulations in Sri Lanka

Some of Building Regulations in Sri Lanka

Regulatory bodies for planning and building in Sri Lanka

• Local Authorities, Municipal Councils.
• Urban Development Authority
• Condominium Management Authority (for high rise Buildings)
• Central Environment Authority
• Board of Investment in Sri Lanka (for factories, hotels, spa, international schools)
• Geological Mines & Survey Bureau.
• Irrigation Department
• Department of Wildlife Conservation
• Department of Forestry
• Department of Archaeology
• Coast conservation Department
• Ministry of Education (For government schools)
• Ministry of Defence
• Airport &Aviation Services
• Ceylon Electricity Board/Lanka Electric Company
• National Water Supply &Drainage Board
• Parliament of Sri Lanka
• Fire Brigade

There are several UDA (Urban Development Authority) regulations have to be considered while constructing buildings. It should be vary according to the area & the type of buildings.

Over hangs and other sun-shading devices for buildings

• The over hangs, canopies, wings or other sun-shading devices of a building shall be permitted to project up to 1.0m beyond the building line, provided that the roofing materials used are of the non-combustible type.

Rear space

• For the proper ventilation there should be 3m (10ft) space should be provided for rear side of the building. (should be 2.25m for 2 storey building)

Minimum width of buildings

• Every new house, shop building or other building shall have a minimum width of 6.0m measured between the centers of external walls.

Floor area of Buildings

• Ground Floor Area should be minimum 2/3 from construction area (land area) for residential buildings.
• Ground Floor area should be minimum 4/5 from construction area  (land area) for commercial buildings
• Total floor area (sum of all floor area) should be minimum 3000 sq. ft for residential buildings.
• Floor area for room should be greater 90sqft except pantry, Kitchen, Storerooms, bathrooms, Garage, open veranda.
• Floor area for Kitchen should be greater 60sq.ft.
• Should be minimum one bed room with 120 sq.ft floor area in residential buildings.
• Should be minimum 1.5 Sq.m for bathrooms

Width of buildings

• Minimum width for bath room should be 0.9m.
• Minimum width should be 8ft in bed room

Height of Buildings

• General Height of the building should be 10 ft, but minimum height should be 7 ft from ground level.
• For bathrooms, balconies, terraces and garages not less than 2.2 m.
• For living rooms and bedrooms not less than 2.8 m 
• For kitchens not less than 2.8 m

Doors & Windows

• Open window area should be 1/7 from floor area in rooms.(the window sashes open to be outside from building).
• Open window area can be minimize 1/15 from floor area, if the room have doors to be open outside the building).
• Open window area should be 1/10 from floor area in toilets & Garages.
• The Ventilation space should be 7 1/2ft for openbely windows & doors for outside from the building.

Water Supply & Sewerage

• No well-used for the supply of drinking water shall be located less than 15.0m from a septic tank.
• In areas where there no pipe borne water supply systems are installed, the minimum lot size should be 20 perches in extent.
• The bottom level of soakage pit, or septic tank should not be lower than the water table of such area.

Parking Space

• 8’X 16’ size area Should be minimum parking space for greater than 2000 sq.ft building.

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