Building Regulations 1993

(1) For section 48D(1) of the Act, prescribed building work is work for or in connection with the construction of any of the following:

(b) a Class 10 building attached to a Class 1a detached house if it is constructed at the same time as the house is constructed;

(c) a retaining wall (whenever constructed) that is not attached to a Class 1a detached house but on which the integrity of such a house depends.

Examples of Class 10 buildings for subregulation (1)(b)

1. A garage attached to a detached house.

2. A retaining wall attached to a detached house.

(2) However, the prescribed building work does not include work for or in connection with the construction of any of the following:

(a) renovations or alterations to an existing Class 1a detached house if there is no increase in the floor area of the house;

(b) a Class 10 building or verandah attached to a Class 1a detached house if it is constructed at any time after the house was constructed;

(c) a Class 10 building (whenever constructed) that is not attached to a Class 1a detached house, other than a retaining wall referred to in subregulation (1)(c).

Examples of renovations and alterations for subregulation (2)(a)

1. The re-cladding of the roof or walls of a detached house.

2. The replacement of windows in a detached house.

3. The construction of new external openings in a detached house.

4. The enlargement or filling in of existing external openings in a detached house.

Examples of Class 10 buildings for subregulation (2)(c)

1. A freestanding garage or shed.

2. A retaining wall that is not attached to a detached house and on which the integrity of a detached house does not depend.