New South Wales Consolidated RegulationsThe Council shall not consent to a dual occupancy unless the area of the allotment on which the 2 dwellings will be situated is not less than:
(a) 600 square metres in the case of 2 attached dwellings resulting from development described in clause 27 (1) (a), or
(b) 700 square metres in the case of 2 attached dwellings resulting from development described in clause 27 (1) (b) or (c), or
(c) 900 square metres in the case of 2 detached dwellings resulting from development described in clause 27 (1) (d) or (e).