http://www.legislation.gov.uk/asc/2026/5/section/103Building Safety (Wales) Act 2026enStatute Law Database2026-06-22Expert Participation2026-04-28 PART 3ENFORCEMENT AND INVESTIGATORY POWERSFunctions of authorised officersPower to enter premises not being used as a residential unit 103 1 An authorised officer may enter any premises not being used as a residential unit where— a the officer considers it necessary to enter the premises for a relevant purpose, and b unless the officer considers that it would frustrate the purpose— i entry takes place at a reasonable time of day, and ii reasonable notice is given to the occupier or‍ to a person appearing to the officer to be in charge of the premises. 2 An authorised officer may enter any premises not being used as a residential unit by force (if necessary) where— a the officer considers that it is necessary to enter the premises for a relevant purpose, and b a warrant has been issued by a justice of the peace under subsection (3). 3 A justice of the peace may issue a warrant under this subsection only if satisfied, on sworn information in writing from an authorised officer— a that it is necessary for an authorised officer to gain entry for a relevant purpose, and b that either of the following is the case— i entry has been, or is likely to be, refused, or ii it is otherwise appropriate for the officer to be authorised to enter by force (if necessary). 4 A warrant issued under subsection (3)— a authorises an authorised officer to enter premises specified in the warrant by force (if necessary); b may specify when, or how often, entry may take place. 5 In this section and section 104, “residential unit” includes premises that would be a residential unit but for regulations made under section 5(6)(a). S. 103 not in force at Royal Assent, see s. 138(2)