72Works that amend existing building boundary

### 72 Works that amend existing building boundary > > (1)  In this section – > > > > > ***strata title*** means a property title held under the [Strata Titles Act 1998](/view/html/inforce/2026-04-12/act-1998-017) . > > > (2)  A person intending to change the boundary of an allotment, or of a strata title, of an existing building must obtain a building permit and perform work under this Act if the change would, without performing the work – > > > > > > (a) have an adverse effect on the safety, health and amenity of persons accommodated in, or using, the existing building; or > > > > > > > (b) increase the risk of the spread of fire between adjacent buildings or from a fire source feature. > > > > Penalty:  In the case of – > > > > > > (a) a natural person, a fine not exceeding 50 penalty units; or > > > > > > > (b) a body corporate, a fine not exceeding 250 penalty units. > > > (3)  Despite [subsection (2)](#GS72@Gs2@EN) , a person must not change the boundary of an allotment, or of a strata title, of an existing building so that the building no longer complies with the provisions of this Act. > > > > Penalty:  In the case of – > > > > > > (a) a natural person, a fine not exceeding 100 penalty units; or > > > > > > > (b) a body corporate, a fine not exceeding 500 penalty units.