New South Wales Consolidated RegulationsThe objectives for control of the height of buildings in Central Sydney are:
(a) to allow sunlight access to key areas of the public domain by ensuring that:(i) further overshadowing of certain parks and community places is avoided or limited during nominated times, and(ii) existing overshadowing of certain parks and community places is reduced in the long term, and
(b) to provide a transition of building heights between localities and street blocks, and
(c) to provide high quality urban form for all buildings, while maintaining satisfactory sky exposure and daylight:(i) to the public areas of Central Sydney, including the parks, places, streets and lanes, and(ii) to existing buildings and to the sides and rear of tower forms, and
(d) to confine ground level wind speeds to velocities which ensure pedestrian comfort and amenity of the public domain, and
(e) to allow for and promote the ventilation of the City by the free movement of air around and between tower structures, and
(f) to provide sun access to significant sandstone buildings in Special Areas in order to improve the ground level environmental quality of public spaces, and
(g) to ensure that tower development occurs on sites capable of providing appropriate urban form and amenity, and
(h) to nominate heights that will provide a transition in built form and land use intensity between the City Centre zone and adjoining lower scale localities within and adjacent to Central Sydney, and
(i) to provide for view sharing along the edges of Central Sydney, and
(j) to ensure an appropriate height transition between new buildings and heritage items or Special Areas.