Urban Drainage (General) Regulations 2026
4Prescribed structures
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4 Prescribed structures
(1) For the purposes of section 13(1) of the Act and subject to subregulation (2) , a prescribed structure means any structure other than the following:
(a) a non-roofed deck that –
(i) is made of timber products; and
(ii) is not more than one metre above finished ground level; and
(iii) is not situated within one metre laterally from the outer edge of a public stormwater system;
(b) a pergola, garden arch, trellis or frame if the structure –
(i) does not exceed 20 square metres in total area; and
(ii) is not more than 3 metres above finished ground level at its highest point; and
(iii) is not covered or is covered only by open-weave material which allows water through;
(c) a swimming pool or water feature if –
(i) the maximum possible water surface area is not more than 9 square metres; and
(ii) the maximum possible water depth is not more than 300 millimetres;
(d) a non-roofed windmill or a mast, antenna or flagpole or a support structure of a wind turbine if the windmill, mast, antenna, flagpole or support structure –
(i) is not attached to a building and is not more than 6 metres high; or
(ii) is not situated within one metre laterally from the outer edge of a public stormwater system;
(e) a fence or wall, constructed of masonry or concrete, that is not higher than 1.2 metres;
(f) a fence or wall, constructed of material other than masonry or concrete, that is not higher than 2.1 metres;
(g) a builder's site shed that is –
(i) being used in connection with building work for which a building permit is in force; or