42.—(1) The room standard is contravened when the number of persons who sleep in the HMO and the number of rooms available as sleeping accommodation are such that any person aged 13 or over must sleep in the same room as—
(a)any person of the opposite sex who is also aged 13 or over, or
(b)a couple (within the meaning given by section 88(3)(a)).
(2) For this purpose, a room is available as sleeping accommodation if it is of a type normally used in the locality either as a bedroom or as a living room.