Hong Kong Regulations

BUILDING (PLANNING) REGULATIONS - REGULATION 3A

Protection of openings

(1) Every opening placed on an external wall above the ground floor of any
building shall be protected by a barrier which shall be not less than 1100 mm
high and the lowermost 150 mm of such barrier shall be built solid.

(2) A barrier provided under paragraph (1) shall be so designed as to minimize
the risk of persons or objects falling, rolling, sliding or slipping through
gaps in the barrier, or persons climbing over the barrier. (L.N. 406 of 1987)