New South Wales Consolidated Regulations New South Wales Consolidated RegulationsDevelopment is not to unreasonably reduce sunlight to surrounding properties.
In the case of housing:
• sunlight, to at least 50% of the principal private open spaces, is not to be reduced to less than 2 hours between 9 am and 3 pm on June 21, and
• where overshadowing by existing structures and fences is greater than this, sunlight is not to be further reduced by development by more than 20%.