7. (1) Subject to sub-article (2) and articles 3 and 6, this Part applies to—

(a) the erection of a building,

(b) the material alteration or extension of a building, and

(c) a material change of use of a building,

to which the Building Regulations apply.

F19[(2) (a) Subject to paragraph (b) and paragraph (c), this Part shall not apply to works or a building as regards which a material change of use takes place, where—

(i) the works are or the material change of use is exempted development for the purposes of the Planning and Development Acts 2000 to 2022, and

(ii) Part III, or Part III of the Building Control Regulations, 1991 and 1994, do not apply to the works or building.

F20[(b) This Part applies to works in connection with the material alteration (excluding a material alteration consisting solely of minor works) of a shop, office, industrial building – normal hazard, industrial building – high hazard, storage building – normal hazard, or storage building – high hazard to which Part III, or Part III of the Building Control Regulations, 1991 and 1994, do not apply.]

(c) This Part applies to works in connection with the design and construction of a new dwelling or an extension to a dwelling involving a total floor area greater than 40 square metres.]

F21[(3) This Part shall not apply to works to a Tier 1 building or a Tier 2 building provided that the works are carried out in accordance with the Code of Practice for the Remediation of Fire Safety Defects, published under Section 18(A) of the Fire Services Acts 1981 and 2003.]