Consent shall not be granted to accessible housing or multi-dwelling housing unless the consent authority is satisfied that the housing will contribute to the provision of housing choice within the locality and--
(a) the housing incorporates a range of dwelling sizes, particularly contributing to the increased provision of single and two bedroom dwelling stock, and
(b) the housing shall include a minimum of 33 per cent (to the nearest whole number) of the proposed dwellings with a gross floor area not greater than 100 square metres.