Insignificant Building Works
1. Building works carried out for or in connection with —
site formation works involving any excavation or filling not exceeding 1,500 millimetres in depth or height;
any trenches for the purpose of laying sewers not exceeding 1,000 millimetres in diameter in conjunction with any public sewerage system;
any boundary wall, boundary fence or gate;
any awning, windowhood or cantilevered roof constructed of glazed or clay tiles, and having a projection not exceeding 1,400 millimetres;
any awning, windowhood or cantilevered roof constructed of lightweight material, and having a horizontal projection not exceeding 3,000 millimetres;
any single storey trellis, pergola, shelter, gazebo and the like;
any canal or drain not exceeding 1,500 millimetres in depth;
any box culvert with a span not exceeding 5,000 millimetres and a depth not exceeding 1,500 millimetres;
any stall or shed of lightweight material within any premises used for the purpose of holding a trade fair, fun fair or any exhibition;
any pipe rack or support not exceeding 2,000 millimetres in height;
any height restriction gantry;
any concrete or brick vault used for housing underground tanks;
any plinth, platform or other base with a visible height not exceeding 1,000 millimetres from the ground level and erected for the purpose of supporting any mechanical plant, tank, equipment, machinery or other components (other than a building);
the enclosing of a balcony, yard or terrace with windows and glass panels in residential buildings;
the creation of any opening in a non-load bearing wall or the sealing up of any wall opening;
the demolition, restoration or reinstatement of any non-load bearing wall;
any retaining wall or earth retaining structure that is constructed with structural steel or reinforced concrete and with a visible height of not more than 1,500 millimetres, or any other retaining wall or earth retaining structure with a visible height of not more than 1,000 millimetres;
any retaining wall or earth-retaining structure for supporting the face of an excavation made for the purpose of constructing any pile cap, footing, sump, lift pit or trench, provided that the size of the pile cap, footing, sump, lift pit or trench does not exceed 10 square metres in area and 2 metres in depth.
2. Replacement or changing of windows and doors.
3. Replacement of existing floor and wall finishes.
4. Replacement or changing of any false ceiling with lightweight material.
5. One to one replacement of timber roof or other roof covering not involving any replacement of roof trusses.
6. Erection or alteration of —
any partition or partition wall in any bungalow, semi-detached, terrace or linked house; or
any partition or partition wall constructed of lightweight material in any other building.
7. Construction of any raised floor or the topping up of balconies, and the like, with lightweight materials.
8. Erection of any single storey detached booth, kiosk, guardhouse, bin centre, and the like, not exceeding an area of 10 square metres.
9. Installation of any roller shutter or grilled door.
10. Erection of any single storey lean-to extension with roof covering of glazed or clay tiles, or of any lighter material, in any bungalow, semi-detached, terrace or linked house, subject to compliance with building set-back and area of coverage requirements under the Planning Act (Cap. 232).
11. Erection of any single storey shed or hut not exceeding an area of 10 square metres for housing fuel tanks, mechanical or electrical equipment.
12. All air-conditioning works.
13. In this Schedule —
“lightweight material” means —
any sheet or board material such as timber board, plywood, fibreboard, plasterboard, aluminium sheet, corrugated metal sheet or polycarbonate sheet;
any concrete product made with lightweight aggregates such as pumice, perlite or vermiculite; or
any hollow concrete block, hollow glass block, autoclaved aerated concrete block and the like;
“non-load bearing wall” means a wall which supports no load other than its own weight;
“partition” means a temporary or an easily removable vertical panel of lightweight construction for the subdivision of spaces within a building.