Bathrooms and Water-Closets 

Height 
        The height of a bathroom or water-closet measured from the surface of the floor to the lowest point in the ceiling (bottom of slab) shall not be less than 2.1 m. 

Size 
        The area of a bathroom shall not be less than 1.8 m2 with a minimum width of 1.2 m. The floor area of water-closet shall be 1.1 m2 with a minimum width of 0.9 m. If bath and water-closet are combined, its floor area shall not be less than 2.8 m2 with a minimum width of 1.2 m. 

Other Requirements Every bathroom or water-closet shall: 

a) be so situated that at least one of its walls shall open to external air; 
b) not be directly over or under any room other than another water-closet, washing place, bath or terrace, unless it has a water-tight floor; 
c) have the platform or seat made of water-tight non-absorbent material; 
d) be enclosed by walls or partitions and the surface of every such wall or partition shall be finished with a smooth impervious material to a height of not less than 1 m above the floor of such a room; 
e) be provided with an impervious floor covering, sloping towards the drain with a suitable grade and not towards VERANDAH or any other room; and 
f) have a window or ventilator, opening to a shaft or open space, of area not less than 0.3 m2 with side not less than 0.3 m. 

**No room containing water-closets shall be used for any purpose except as a lavatory and no such room shall open directly into any kitchen or cooking space by a door, window or other opening. Every room containing water-closet shall have a door completely closing the entrance to it.