Hong Kong Regulations

BUILDING (PLANNING) REGULATIONS - REGULATION 25

Space about domestic buildings

(1) (a) Every domestic building on a class A or B site or on a class C site
shall have within the site an open space at the rear, or partly at the rear
and partly at the side, at a level of not less than 150 mm below the floor of
the lowermost storey in accordance with the Second Schedule: Provided that
where the Building Authority considers it necessary for proper and equitable
development or redevelopment of an adjacent site, he may require the provision
of more open space than that specified in the Second Schedule. (G.N.A. 97 of
1962; L.N. 82 of 1963)

   (b)  The open space provided pursuant to sub-paragraph (a) shall be such
        that no part of the building which bounds on such open space at any
        level shall be within 1.5 m, measured horizontally, of a line drawn
        vertically from a point in the boundary of the open space immediately
        opposite thereto. (L.N. 33 of 1966)

(2) No part of any domestic building shall be erected within 1.5 m of the rear
boundary of the site. The open space so provided shall be counted as part of
the open space required under this regulation. (L.N. 33 of 1966)

(3) No existing domestic building which has an open space of equal or less
area than that required by this regulation shall be altered in such manner as
to reduce the existing amount of open space.

(4) No existing domestic building which has a greater area of open space than
that required by this regulation shall be altered in such a manner as to
reduce the area of open space to less than that required by this regulation.

(5) Where any open space or area is at a level more than 600 mm below an
adjoining open space, safe parapet walls, railings or fences shall be provided
by the person creating the difference in levels.

(6) Access shall be provided to every open space. (L.N. 294 of 1976)