122Complying development involving building work

#### 122 Complying development involving building work 122 Complying development involving building work > > (1) This section applies to an application for a complying development certificate that relates to development involving building work, including building work in relation to— > > > > > (a) a dwelling house, or > > > > > (b) a building or structure that is ancillary to a dwelling house. > > > (2) An application for a complying development certificate must contain the following— > > > > > (a) a detailed description of the development, > > > > > (b) building work plans and specifications. > > > (3) The detailed description of the development must indicate the following— > > > > > (a) for each new building— > > > > > > > (i) the number of storeys in the building, including underground storeys, and > > > > > > > (ii) the gross floor area of the building in square metres, and > > > > > > > (iii) the gross site area of the land on which the building will be erected in square metres, and > > > > > > > (iv) the site coverage, that is, the percentage of the site area that will be covered by a building, > > > > > (b) for each new residential building— > > > > > > > (i) the number of existing dwellings on the land on which the new building will be erected, and > > > > > > > (ii) the number of the existing dwellings that will be demolished in connection with the erection of the new building, and > > > > > > > (iii) the number of dwellings that will be in the new building, and > > > > > > > (iv) whether the new building will be attached to an existing building, and > > > > > > > (v) whether the new building will be attached to another new building, and > > > > > > > (vi) whether the land contains a dual occupancy, and > > > > > > > (vii) the materials to be used in the construction of the new building, using the relevant abbreviations. > > > (4) The building work plans and specifications must contain the following— > > > > > (a) detailed building work plans, drawn to a suitable scale and consisting of a block plan and a general plan, that show— > > > > > > > (i) a plan of each floor section, and > > > > > > > (ii) a plan of each elevation of the building, and > > > > > > > (iii) the levels of the lowest floor, an unbuilt yard or area that belongs to the lowest floor and the adjacent ground, and > > > > > > > (iv) the height, design, construction and provision for fire safety and fire resistance, if any, > > > > > (b) specifications for the development that— > > > > > > > (i) describe the construction and the materials to be used to construct the building, and > > > > > > > (ii) describe the method of drainage, sewerage and water supply, and > > > > > > > (iii) state whether the materials to be used are new or second-hand and contain details of any second-hand materials to be used, > > > > > (c) if the development involves building work to alter, expand or rebuild an existing building—a scaled plan of the existing building, > > > > > (d) for BASIX development, or BASIX optional development if the application is accompanied by a BASIX certificate—the other matters required by a relevant BASIX certificate. > > > (5) An application for a complying development certificate must also contain the following— > > > > > (a) if the building work involves a performance solution under the Building Code of Australia—a report about the performance solution prepared in accordance with the requirements set out in the Building Code of Australia, A2G2(4), > > > > > (b) a description of any building product or system accredited under the [Environmental Planning and Assessment (Development Certification and Fire Safety) Regulation 2021](/view/html/inforce/current/sl-2021-0689) for the purposes of the Act, section 4.28(4), > > > > > (c) copies of compliance certificates to be relied on. > > **s 122:** Am 2023 (71), Sch 1.3\[3\].