Where it appears to the local housing authority that survey or examination of any premises is necessary in order to determine whether any powers under this Part should be exercised in respect of the premises, a person authorised by the authority may at any reasonable time, on giving 24 hours’ notice of his intention to the occupier, and to the owner if the owner is known, enter the premises for the purpose of such a survey and examination.

A person authorised by the local housing authority may at any reasonable time, without any such prior notice as is mentioned in subsection (1), enter any premises for the purpose of ascertaining whether an offence has been committed under any of the following provisions of this Part—

• section 346(6) (contravention of or failure to comply with provision of registration scheme),

• section 355(2) (failure to comply with requirements of direction limiting number of occupants of house),

• section 358(4) (contravention of overcrowding notice),

• section 368(3) (use or permitting use of part of house with inadequate means of escape from fire in contravention of undertaking),

• section 369(5) (contravention of or failure to comply with regulations prescribing management code),

• section 376(1) or (2) (failure to comply with notice requiring execution of works).

An authorisation for the purposes of this section shall be in writing stating the particular purpose or purposes for which the entry is authorised F1and shall, if so required, be produced for inspection by the occupier or anyone acting on his behalf.