(1) In this section strata title means a property title held under the Strata Titles Act 1998 .(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) , 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.