Mark Dodgson , of  Edgecliff NSW, made the following submission on the project:

Proposed amendment to parking provisions for boarding houses: ARHSEPP

This is a bad idea if you wish to continue to create small scale
affordable housing.

The ability to produce small scale affordable housing without the need
for basement excavations will be substantially curtailed.
It is generally accepted that small scale development is the best form
of development to enable integration of these type of schemes into
neighbourhoods.
Development of basements is of course a very expensive additional
cost.

As an alternative you could have existing parking for schemes upto
(say) 12 units with larger developments required to met the higher
threshold.