BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - CHAPTER 123G BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - LONG TITLE Empowering section VerDate:30/06/1997 (Cap 123, section 38) [1 January 1960] (G.N.A. 77 of 1959) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 1 Citation VerDate:30/06/1997 PART I PRELIMINARY These regulations may be cited as the Building (Private Streets and Access Roads) Regulations. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 2 Interpretation VerDate:30/06/1997 In these regulations, unless the context otherwise requires- "area of mixed usage" (混合用途區) means an area developed or to be developed with buildings used or to be used wholly or partly for purposes of habitation and with buildings used or to be used wholly or partly for the purposes of industrial undertakings or of offices or of other commercial uses, not being a residential area or an industrial area; "carriageway" (車路) means that part of a private street, cul-de-sac or access road used or intended for use by vehicular traffic; "cul-de-sac" (盡頭路) means a private street which is closed at one end; "footpath" (行人路) means that part of a private street, cul-de-sac or access road used or intended for use only by pedestrian traffic; "industrial area" (工業區) means an area developed or to be developed primarily with buildings used or to be used wholly or mainly for the purposes of industrial undertakings or of offices or of other commercial uses; "pedestrian way" (行人徑) means a private street used or intended for use only by pedestrian traffic; "public street" (公眾街道) means a street vested in and maintained by the Government; "residential area" (住宅區) means an area developed or to be developed primarily with buildings used or to be used wholly or mainly for purposes of habitation. "area of mixed usage" (混合用途區) "carriageway" (車路) "cul-de-sac" (盡頭路) "footpath" (行人路) "industrial area" (工業區) "pedestrian way" (行人徑) "public street" (公眾街道) "residential area" (住宅區) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 3 New streets, etc. to be accessible from existing street VerDate:30/06/1997 PART II PLANNING OF PRIVATE STREETS AND ACCESS ROADS Every new private street, cul-de-sac and access road shall be accessible from an existing street or another new street. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 4 Footpaths VerDate:30/06/1997 (1) Every private street and cul-de-sac shall have a footpath on each side thereof. (2) Every access road shall have a foot path on at least one side thereof. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 5 Width of private streets and cul-de-sacs VerDate:30/06/1997 (1) (a) In every residential area- (i) the width of the carriage way of and of each footpath in any private street shall be not less than the width specified in Table I; and (ii) the width of the carriageway of any cul-de-sac shall be not less than 5 m and the width of each footpath therein shall be not less than 2.75 m. TABLE I Type of street Width of carriageway Width of footpath Major Minor 7.3 m 5.5 m 3.7 m 2.75 m (L.N. 294 of 1976) (b) In every industrial area and in every area of mixed usage- (i) the width of the carriage way of and of each footpath in any private street shall be not less than the width specified in Table II; and (ii) the width of the carriageway of any cul-de-sac shall be not less than 7.3 m and the width of each footpath therein shall be not less than 2.75 m. TABLE II Type of street Width of carriageway Width of footpath Major Minor 10.5 m 7.3 m 3.7 m 2.75 m (L.N. 294 of 1976) (2) For the purposes of this regulation- (a) the Building Authority shall determine- (i) whether any area is a residential area, an industrial area or an area of mixed usage; and (ii) whether a street is a major or a minor street; and (b) any cul-de-sac which is more than 120 m in length measured along the centre line of the carriageway thereof from the junction of the cul-de-sac with a street which is a thoroughfare, shall be deemed to be a private street. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 6 Width of access roads VerDate:30/06/1997 (1) Save as provided in paragraph (2), the width of the carriageway of every access road shall be not less than 5 m and the width of the footpath therein shall be not less than 1.6 m. (2) Where- (a) an access road provides or will provide access to not more than 12 separate buildings or not more than 24 flats, whether such flats are in the same building or not; and (b) the aggregate of the areas of the floors in all the buildings or flats does not exceed 3500 m2; and (c) spaces, to enable vehicles to pass, are provided at distances along the access road not exceeding 60 m in length, the width of the carriageway of the access road may be not less than 2.75 m and the width of the footpath not less than 1.5 m. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 7 Pedestrian ways VerDate:30/06/1997 Every pedestrian way shall be- (a) not less than 3.5 m wide; and (L.N. 294 of 1976) (b) so protected as to prevent vehicles entering therein. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 8 Kerb radius VerDate:30/06/1997 At every junction of a private street, cul-de-sac or access road with any street, the radius of the kerb line shall- (a) where the footpaths in the streets or in the cul-de-sac or access road and the street, as the case may be, are of the same width, be not less than the width of such footpaths; or (b) where such footpaths are of different widths, be not less than the width of the wider footpath. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 9 Junctions to be at right angles, etc. VerDate:30/06/1997 The junction of any private street, cul-de-sac or access road with any street shall be made at right angles, and (a) where the junction is of a new private street or cul-de-sac with an existing street, the line of the carriageway of the new private street or cul-de-sac shall continue at such angle for a distance of not less than 30 m from the place at which such street or cul-de-sac enters the junction; (b) where the junction is of 2 or more new private streets, the line of the carriageway or each such street shall continue at such angle for a distance of not less than 30 m from the place at which each street enters the junction; and (c) where the junction is of an access road with a street, the line of the carriageway of the access road shall continue at such angle for a distance of not less than 7.5 m from the place at which such access road enters the junction. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 10 No undulation on major street VerDate:30/06/1997 The carriageway of any minor street shall, at the junction of such carriageway with the carriageway of a major street, be graded into the carriageway of such major street in such a manner as to avoid undulation on the major street. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 11 Gradients VerDate:30/06/1997 (1) Subject to the provisions of paragraphs (2) and (3), no private street, cul-de-sac or access road shall have a gradient greater than 1 in 6. (2) In every private street and cul-de-sac, the gradient shall, for a distance of 30 m from the junction of the private street or cul-de-sac with any street, not exceed 1 in 30. (3) In every access road, the gradient shall, for a distance of 7.5 m from the junction of the access road with any street, not exceed 1 in 30. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 12 Horizontal curves VerDate:30/06/1997 (1) The radius of any horizontal curve in any private street or cul-de-sac shall be not less than 30 m measured to the centre line of the carriageway of the street or cul-de-sac. (2) The radius of any horizontal curve in an access road shall be not less than 9 m, measured to the centre line of the carriageway of the access road. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 13 Vertical curves VerDate:30/06/1997 Any vertical curve in a private street, cul-de-sac or access road shall be such that from a point 1 m above any part of the carriageway thereof a clear view can be obtained of the top of an object 1 m high at all distances along the carriageway up to 40 m from such point. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 14 Widening of private streets and cul-de-sacs on curve in certain cases VerDate:30/06/1997 Where, under regulation 27, the Building Authority permits the radius of a horizontal curve in any private street or cul-de-sac to be less than 30 m, the carriageway thereof shall be gradually widened, on the outer edge of the curve, from the tangent points to the middle point of the curve so that, at the middle point of the curve, the widening is not less than that specified in Table III. (L.N. 294 of 1976) TABLE III Width of Carriageway Permitted radius of curve at centre line Minimum widening 6 m or less Less than 18 m 1.2 m 18 m to 24 m inclusive 1.0 m Over 24 m 0.6 m More than 6 m Less than 18 m 1.0 m 18 m to 24 m inclusive 0.6 m Over 24 m 0.3 m (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 15 Turning space for vehicles in cul-de-sacs and access roads VerDate:30/06/1997 (1) There shall be provided, at the closed end of every cul-de-sac, adequate space to enable vehicles to turn. (2) Where any access road is not a thoroughfare, there shall be provided, at that end of the access road furthest from its junction with a street, adequate space to enable vehicles to turn. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 16 Surfacing of private streets, cul-de-sacs and access roads VerDate:30/06/1997 PART III CONSTRUCTION OF PRIVATE STREETS, ACCESS ROADS AND SERVICE LANES The carriageway of every private street, cul-de-sac and access road shall be surfaced with- (a) concrete not less than 150 mm thick, laid on rolled hardcore not less than 75 mm thick; or (L.N. 439 of 1990) (b) bitumen macadam not less than 75 mm thick, laid on rolled hardcore not less than 200 mm thick, and covered with a layer of fine bitumen macadam not less than 25 mm thick; or (c) other approved material. (L.N. 156 of 1977) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 17 Surfacing of pedestrian ways and service lanes VerDate:30/06/1997 Every pedestrian way and service lane shall be surfaced with- (a) concrete not less than 100 mm thick laid on rolled hardcore not less than 75 mm thick; or (L.N. 439 of 1990) (b) bitumen macadam not less than 50 mm thick, laid on rolled hardcore not less than 75 mm thick, and covered with a layer of fine bitumen macadam not less than 25 mm thick; or (c) other approved material. (L.N. 156 of 1977) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 18 Surfacing of footpaths VerDate:30/06/1997 Every footpath shall be surfaced with- (a) concrete not less than 50 mm thick, and covered with granolithic paving not less than 12.5 mm thick; or (L.N. 294 of 1976; L.N. 439 of 1990) (b) other approved material. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 19 Kerbstones VerDate:30/06/1997 (1) Every kerbstone shall be 150 mm in width, 300 mm in height and not less than 750 mm in length. (L.N. 294 of 1976) (2) Every kerbstone in a private street or cul-de-sac shall be constructed of granite and every kerbstone in an access road shall be constructed of granite or concrete. (L.N. 439 of 1990) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 20 Height of kerbs VerDate:30/06/1997 The top of every kerb shall be not less than 75 mm nor more than 175 mm above the level of the channel adjacent thereto. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 21 Camber and crossfall VerDate:30/06/1997 (1) Save where a bend in any private street, cul-de-sac or access road is super-elevated, the carriageway therein shall have a camber of 1 in 40. (2) Every footpath shall have a crossfall towards the kerb of 1 in 48. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 22 Grade of manhole covers and gratings VerDate:30/06/1997 (1) Any manhole cover or grating situated in the carriageway of any private street, cul-de-sac or access road shall be of a grade equal to Grade A as specified in the current relevant British Standard Specification. (2) Any manhole cover or grating in any footpath, pedestrian way or service lane shall be of a grade equal to Grade B as specified in the current relevant British Standard Specification. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 23 Shape of manhole covers VerDate:30/06/1997 (1) The cover of every manhole, in a private street, cul-de-sac, access road, pedestrian way or service lane, provided for a drain or sewer provided for the carriage of foul water shall be rectangular on plan. (2) The cover of every such manhole provided for a drain or sewer provided for the carriage of surface water shall be rounded on plan. (3) For the purposes of this regulation, the expressions "foul water" (髒水) and "surface water" (地面水) shall have the meaning assigned to them by regulation 2 of the Building (Standards of Sanitary Fitments, Plumbing, Drainage Works and Latrines) Regulations (Cap 123 sub. leg.). "foul water" (髒水) "surface water" (地面水) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 24 Drainage of private streets, etc. VerDate:30/06/1997 (1) Every private street, cul-de-sac, access road, pedestrian way and service lane shall be provided with channels and drains and sewers for the carriage of rain-water and surface water. (2) The size and gradient of every such channel, drain or sewer shall be adequate to carry off all rain-water falling on and surface water draining to the private street, cul-de-sac, access road, pedestrian way or service lane. (3) For the purposes of this regulation, the intensity of rainfall shall be calculated- (a) where the Time of Concentration is less than 30 minutes, at the rate of not less than 150 mm/h; and (b) where the Time of Concentration is 30 minutes or more than 30 minutes, at the rate of not less than 100 mm/h. (L.N. 294 of 1976) BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 25 Channels VerDate:30/06/1997 (1) Every channel in any private street, cul-de-sac, access road and pedestrian way shall be- (a) constructed of concrete not less than 150 mm in thickness nor less than 300 mm in width; (L.N. 294 of 1976; L.N. 439 of 1990) (b) laid to a fall of 1 in 30 towards the kerb in cross-section; and (c) save as provided in paragraph (2), laid to a fall of not less than 1 in 100 in longitudinal section. (2) Where the Building Authority is satisfied that it is impracticable to lay any channel to a fall of not less than 1 in 100 in longitudinal section, he may permit the channel to be laid to a fall of not less than 1 in 250. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 26 Any work in public street to be carried out by Building Authority VerDate:30/06/1997 PART IV MISCELLANEOUS (1) Where- (a) the forming or laying out of any private street, cul-de-sac, access road or pedestrian way; or (b) the provision of any means of access to a building fronting or abutting on a public street, necessitates the carrying out of any work in or the alteration of any public street, such work or alteration shall be carried out by the Building Authority who may recover the cost thereof from the owner of the private street, cul-de-sac, access road, pedestrian way or building, as the case may be. (2) Where, in contravention of this regulation, any work has been carried out otherwise than by the Building Authority, the Building Authority may remove, alter or demolish such work and may carry out such other work as he considers necessary, and may recover the cost of any work carried out under this paragraph as if such work had been carried out pursuant to the provisions of paragraph (1). BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 27 Power of Building Authority to waive requirements of regulations 9, 11, 12 and 13 and to require other work to be carried out in lieu thereof VerDate:30/06/1997 Where, in any case, the Building Authority is satisfied that, owing to the nature of the ground or for other sufficient reason, compliance with the requirements of regulation 9, 11, 12 or 13 is impracticable, he may waive such requirement and, upon any such waiver may, by order in writing, require such street works to be carried out, in lieu of compliance with such requirement, as he considers necessary. BUILDING (PRIVATE STREETS AND ACCESS ROADS) REGULATIONS - REGULATION 28 Power of Building Authority to waive requirements of regulation 16 VerDate:30/06/1997 Where adequate tests have been carried out to determine the bearing capacity of the ground forming the foundation of any carriageway and the results thereof have been submitted to the Building Authority, the Building Authority may, if he is satisfied with the tests and the results thereof, waive the requirements of regulation 16 and, upon such waiver may, by order in writing, require materials used in the surfacing of the carriageway to be based on the results of such tests.