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.

(2) (a) Subject to paragraph (b), 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 Local Government (Planning and Development) Acts, 1963 to 1993), and

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

(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 or industrial building to which Part III, or Part III of the Building Control Regulations, 1991 and 1994, do not apply.