The standards specified for that development are that the development must--
(a) not be visible from any public place outside the site of the building concerned, and
(b) be securely fixed and installed in accordance with--(i) AS/NZS 1170.0:2002, Structural design actions, Part 0: General principles , and(ii) AS/NZS 1170.2:2011, Structural design actions, Part 2: Wind actions .