New South Wales Consolidated RegulationsIn localities where a rear building setback applies, the objectives of the rear building setback controls are:
• to create a sense of openness in rear yards, and
• to preserve the amenity of adjacent land, and
• to maintain the visual continuity and pattern of buildings, rear gardens and landscape elements, and
• to provide opportunities to maintain privacy between dwellings, and
• in medium density areas, to minimise the visual effect of podiums and to control the density of development, and
• to provide opportunities for the planting of substantial native trees.