Section 62 in West Bengal Municipal (Building) Rules, 2007
62. Bathroom and water closet.
(1) No bathroom shall have a floor area of less than 1.8 sq. metres and width less than 1.2 metres and a height less than 2.2 metres measured from the surface of a floor to the lowest point of the ceiling or the underside of any slabProvided that if it is a combined bathroom and a water closet, such floor area shall not be less than 2.6 sq. metres.(2)No water closet shall have a floor area of less than 1.2 sq. metres and a width less than 1.0 metre.(3)Notwithstanding the provisions of sub-rule (1) or sub-rule (2), in the case of any building referred to in rule 56.(a)an independent bathroom may have a floor area of 1.45 metres;(b)a combined bathroom and water closet may have a floor area of 2.0 sq. metres, with a minimum width of 1.1 metres.(4)Every bathroom or water closet shall(a)be so situated that at least one of its walls shall open to an interior open space or exterior open space or shaft and shall have an opening in the form of window or ventilator or louvre not less than 0.40 sq. metre in area;(b)not be directly over any room, other than a latrine or water closet or a washing place or a bathroom or a terrace, unless it has a water tight floor;(c)have the platform or seat made of water tight non-absorbent materials;(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 metre above the floor of such a room;(e)be provided with a door completely closing the entrance to it; and(f)be provided with an impervious floor covering sloping towards any drain with a suitable grade and not towards any verandah or other MOM.(5)No room containing any water closet shall be used for any purpose except as a lavatory and no such room shall open directly into any kitchen or cooking space or pantry by a door, window or other opening.
