Building Act 1984

8 (1) Building regulations may be made with respect to—

(a) alterations and extensions of buildings and of services, fittings and equipment in or in connection with buildings,

(b) new services, fittings or equipment provided in or in connection with buildings,

(c) buildings and services, fittings and equipment in or in connection with buildings, so far as affected by—

(i) alterations or extensions of buildings, or

(ii) new, altered or extended services, fittings or equipment in or in connection with buildings,

(d) the whole of a building, together with any services, fittings or equipment provided in or in connection with it, in respect of which there are or are proposed to be carried out any operations that by virtue of section 123(1) of this Act constitute the construction of a building for the purposes of this paragraph,

(e) buildings or parts of buildings, together with any services, fittings or equipment provided in or in connection with them, in cases where the purposes for which or the manner or circumstances in which a building or part of a building is used change or changes in a way that constitutes a material change of use of the building or part within the meaning of the expression “material change of use ” as defined for the purposes of this paragraph by building regulations.

(2) So far as they relate to matters mentioned in sub-paragraph (1) above, building regulations may be made to apply to or in connection with buildings erected before the date on which the regulations came into force but, except as aforesaid (and subject to section 2(2) of this Act), shall not apply to buildings erected before that date.