A multi-unit property development must meet the open space standard (B28) which varies from council to council. The amount of open space is specified in the schedule which accompanies the zoning of the land.

In most instances, the requirement is 40 square metres of private open space on the ground with 25 square metres of it being dedicated to a secluded area, where the occupants enjoy greater privacy. This amount of space can generally be achieved by an architect or designer. The objective of…