PART III

SpaceLight and

Ventilation

sec 30 to sec 47

30. Open spaces to be provided 31. Open spaces not to be altered or roofed 32. Space about buildings abutting a street and a back lane 33. Space about buildings on lots abutting a street and having no back

lane 34. Space about detached buildings 35. Access from a street 36. Splayed corners 37. Projections over the street and over the building line 38. Width of footway 39. Natural lighting and ventilation 40. Air-wells 41. Mechanical ventilation and air-conditioning 42. Minimum area of rooms in residential buildings 43. Minimum dimensions of latrines, water-closets and bathrooms 44. Height of rooms in residential buildings, shophouses, schools, etc. 45. Places of public resorts 46. Heights of rooms in buildings 47. Project longs over verandah-way

30. Open spaces to be provided

Every building must have sufficient open space unless the local authority have of the opinion that

in any particular case air space is otherwise sufficiently and permanently provided.

31. Open spaces not to be altered or roofed

The open space that provided in the building that constructed in connection with these building by laws was prohibited:• Make or maintain any alteration, upgrading

and make a change in such open space;• To build, construct or to alter the roof over any

portion of such open space.Unless there is an approval from the local authority in written was granted.

31. Open spaces not to be altered or roofed - cont

If the local authority is satisfied that the free movement of air is not impeded or hindered, the approval will be issue.Any one that are acting in contravention of this part, local authority can by notice in writing to order to remove and dismantle any alteration.

32. Space about buildings abutting a street and a back lane

Residential building Not less than one third of the built area

Non-residential building

Not less than one-tenth of the built area

• The open space for building abutting a street and back lane shall be:

For the purpose of calculating the open space required by paragraph (1) of by-law 32

a) Two-story shop house that occupied by any annexe shall not be considered as built-on area or open space.

b) Half the width of the back lane abutting a building shall be counted as open space.

32. Space about buildings abutting a street and a back lane - cont

For the purpose of calculating the open space required by paragraph (1) of by-law 32

d) Balconies, passage-ways and sun-shade may project over any open space provided they do not project than one meter.

e) Open space provided between the street and the set back line of terrace house can’t be counted as open space.

32. Space about buildings abutting a street and a back

lane - cont

3) where open space not abutting a back lane is provided, it must have a min clear dimension of not less than 2.5m.

32. Space about buildings abutting a street and a back lane

33. Space about buildings on lots abutting a street and having no

back lane

In the case of the building that do not having the back lane, the open space shall be situated at the rear of the building and extended until the full width/end of the lot.

34. Space about detached buildings

1. Unless stated in part VII, it required that detached building there shall be not less than 2m clear space measured between the extreme projection of the building and boundaries of it lot and 4m clean space between such building and any other building unless they are within the same building lot.

2. In this by law, semi detach building will be consider to be one building on a single lot.

35. Access from a street

Every building that does not front a street must provide access from and to a nearer existing street/road. The access layout plan must be

constructed in accordance with sound engineering practice and approved by local

authority.

36. Splayed corners

In case of two building constructed near the junction and the layout plan does not shown

any degree of splay or rounding, the building must be rounded or splay to

prevent collision/rubbing with turning vehicle from and to the junction. There must be at least 5 meter high and three meter side

clearance from the junction.

37. Projections over the street and over the building line

1. Allowable over the street projection :

Width of the street in meters minus 10 meters2

Maximum projection permitted under this formula is 1.25m

2. Projection in nature canopies over entrance in excess of 1.25m

3. All projection at least 5m.4. Projection above the ground floor over such

building line may be permitted provided that such not exceed 1.83m and not exceed one half of the building frontage to the building line.

37. Projections over the street and over the building line

38. Width of footway

The verandah or uncovered walkways must at least 2.25 meter wide. Maximum depth permitted to construct pier on street is 600mm. The width of verandah should be determined by measurement from road boundary to outside wall of building. Any step, threshold and or other structure that attached to the building are consider part of the building. The split level between footpath should be provided with step. The risers for that step must not exceed 150mm and its treads must at least 275mm. If ramp is constructed, it should not more that 1:10 in gradient.

39. Natural lighting and ventilation

Room Windows Opening

1

Residential, business or other purposes except hospitals and schools

<10% of floor area

<5% of floor area

Windows and openings allowing uninterrupted air passage should be provided for every room:

39. Natural lighting and ventilation - cont

Room Windows Opening

2 Hospitals<15% of floor

area<10% of floor

area

3 Schools<20% of floor

area<10% of floor

area4 Toilets 0.2 m2 Provided

40. Air-wells

Buildings Minimum size1 2 storeys 7m2

2 4 storeys 9m2

3 6 storeys 11m2

4 8 storeys 13m2

5 > 8 storeys 15m2

Minimum size of air wells of buildingsMinimum width of air-well is 2.5 m

40. Air-wells - cont

Buildings Minimum size1 2 storeys 3.5m2

2 4 storeys 4.0m2

3 6 storeys 4.5m2

4 8 storeys 5.0m2

5 > 8 storeys 5.5m2

Minimum size of air wells of toiletsMinimum width of air-well 2.5 m

41. Mechanical ventilation and air-conditioning

1. Windows and openings allowing uninterrupted air passage is not necessary if the rooms is equipped with mechanical ventilation or air-conditions.

2. In case of air-conditioning failure there should be alternative ways to introduced fresh air into the room within half an hour.

41. Mechanical ventilation and air-conditioning - cont

3. This provision apply to building with mechanically ventilated or air-conditioning.

4. Windows and openings allowing uninterrupted air passage is not necessary if the toilets is equipped with mechanical ventilation or air-conditions.

42. Minimum area of rooms in residential buildings

Rooms Minimum area1 1st 11.0m22 2nd 9.3m23 Others 6.5m2

The area of habitable room in residential buildingThe width of every habitable room shall not be < 2

meters.The area and width of kitchen shall not < 4.5m2 and

1.5m2 respectively.

43. Minimum dimensions of latrines, water-closets and

bathroomsToilets Area

1 Water closet with pedestal-type 1.5m x 0.75m

2Water closet other than pedestal-type

1.25m x 0.75m

3 Bathrooms1.5m2

(Width not <0.75)

4 Bathrooms with close fittings2m2

(Width not <0.75)

44. Height of rooms in residential buildings, shop houses, schools,

etc

Rooms Minimum height1 Living rooms and bedrooms 2.50m2 Kitchens 2.25m

3Toilets, porches, balconies, verandahs & garages

2.00m

Height of room in residential other than shop houses:

All residential room shall be < 2 m height

44. Height of rooms in residential buildings, shop houses, schools,

etc - cont

Rooms Minimum height1 Ground floor 3.0m2 Upper floor 2.5m

Height of room in shop houses:

The height of rooms in schools shall not < 3mThe height of rooms in hospitals shall not < 3mThe height of rooms in factories shall not < 3m

45. Places of public resorts

The height of rooms other than toilets, cloakrooms, corridors and room to which public do not have

access shall not < 3.5mThe height of balcony shall not < 3.5m

46. Heights of rooms in buildingsThe height of rooms other than specified in provision 44 and 45 shall not < 3.0m

The height of any basement shall not < 3.0m

The height of ground floor parking shall not < 2.5m

The height of headroom shall not < 2.0m

The height of any verandah shall not < 3.0m

47. Project longs over verandah-way

Projection due to beams, stairways, screen, blind or signboards above the paved verandah and have at least minimum height of 2.5 meter

may be permitted by local authorities.