Building Regulations 1993

For section 48A(1)(a) of the Act, a building contractor residential (unrestricted) may, subject to any conditions imposed on the building contractor's registration, commence, carry out or supervise building work that is work for or in connection with the construction of any of the following:

(b) a Class 10 building attached to a building referred to in paragraph (a) if it is constructed at the same time as that building;

(c) a retaining wall (whenever constructed) that is not attached to a building referred to in paragraph (a) but on which the integrity of such a building depends.