(1)Subject to the provisions of this section, sections 156 to 161 apply—
(a)to a building which is not a house but comprises separate dwellings, two or more of which lack either or both of the following—
(i)a sanitary convenience accessible only to those living in the dwelling, and
(ii)personal washing facilities so accessible, and
(b)to a building which is not a house but comprises separate dwellings, two or more of which are wholly or partly let in lodgings or occupied by members of more than one family,
being in either case a building all the dwellings in which are owned by the same person, as if references in those sections to a house which, or part of which, is let in lodgings or which is occupied by members of more than one family included references to any such building.
(2)A notice under section 161(3)(b) shall not by virtue of this section be served in respect of such a building.
(3)A direction under section 166 shall not by virtue of this section be given in relation to such a building.
(4)If a local authority make an order under section 157, as applied by subsection (1), in respect of any building at a time when another order under that section is in force as respects one of the dwellings in the building, they shall revoke the last-mentioned order.
(5)References to a house in sections 163, 164, 175 and 177 shall include references to a building to which this section applies.