The standards specified for that development are that the development must--
(a) be located at least 3.5m behind the building line from any lot boundary, and
(b) be designed so as not to emit noise exceeding an LAeq of 5 dB(A) above background noise when measured at any lot boundary, and
(c) be located not more than 1m above the ridge of a pitched roof or 3m above a flat roof, and
(d) not relate to the cooking of food at the premises by barbecue or charcoal methods, and
(e) if it is located on bush fire prone land--be constructed or installed so that any opening is sealed against the entry of embers.
Note : If the mechanical ventilation system is a
"regulated system" within the meaning of the Public Health Act 2010 , the system must comply with the requirements of that Act and the regulations made under it, including AS/NZS 3666.1:2002, Air-handling and water systems of buildings--Microbial control, Part 1: Design, installation and commissioning .