New South Wales Consolidated Regulations(cf clause 80B of EP&A Regulation 1994)
(1) This Part applies to all buildings except as follows:(a) only Division 7A applies to class 1a and class 10 buildings,(b) only Division 8 applies to temporary structures.
(2) In this clause, a reference to a class 1a or class 10 building:(a) in the case of the erection of a new building, is a reference to a building that will be a class 1a or class 10 building when completed, and(b) in the case of the rebuilding, alteration, enlargement or extension of an existing building, is a reference to an existing class 1a or class 10 building, and(c) in the case of the change of building use for a building, is a reference to a building that will be a class 1a or class 10 building as a result of the change of building use.