The standards specified for that development are that the development must--
(a) be for residential uses only, and
(b) be located at least 3m from each side boundary, and
(c) be not higher than 1.8m above the highest point of the roof of the building on which it is mounted, and
(d) be constructed or installed so that any opening created is adequately weather proofed, and
(e) not involve work that reduces the structural integrity of the building, and
(e1) be designed so as not to operate--(i) during peak time--at a noise level that is more than 5 dB(A) above the ambient background noise level measured at any property boundary, or(ii) during off peak time--at a noise level that is audible in habitable rooms of adjoining residences, and
(f) if it is located on bush fire prone land--be constructed of non-combustible material and be adequately sealed or protected to prevent the entry of embers, and
(g) if it is constructed or installed in a heritage conservation area or a draft heritage conservation area--be located in the rear yard and must not be visible from a public road.
Note : For further information about noise control see the Noise Guide for Local Government (ISBN 978 1 74232 942 0) published by the Department of Environment, Climate Change and Water NSW in October 2010.