23616 DA - Change a Development Approval [As Published] · 132003.221132.4

PROVISIONS
Rain Water Harvesting

PI

Dwellings must integrate with the water management practices developed for the site,
contribute positively to the quality, and reduce the quantity of stormwater run off from
individual allotments

A1.1

All houses shall be fitted with a rainwater collection and reuse system. This system will
be appropriately designed such that runoff from all major roof areas is collected and
delivered to a rainwater tank of at least the following capacity for a given precinct.

« Contemporary Residential 10kL
« Conservation and Premium Residential 15kL
+ Forest Cluster Precinct Group Housing 15kL
AND
A1.2

Water collected in the tanks will be suitable for ail non-potable (non drinking water) uses
in the house and garden. These tanks must be fitted with a pressure pump with
collected rainwater plumbed into the house to supply appropriate uses, including:

+ Garden watering;

+ Toilet flushing;

+ Hot water supply (optional; and

« Washing machine use (optional)

AND

A1.3
Rainwater tanks should not be visible from the street unless integrated into the
architectural form of the dwelling.

Moulded plastic tanks shall be located to the rear of dwellings, located underground, or
suitably screened.

AND

A1.4

The rainwater tank must be fitted with an appropriate float switch or equivalent system,
such that it can be supplemented as required from potable supply. This float switch is to
ensure that there is always at least 10% capacity maintained in the rainwater tank. There
should be a suitable ’air gap’ provided between the top water supply level in the tank and
the supplement supply to prevent backflow.

AND

STOCKLAND DOONELLA ESTATE AUGUST 2006 v5.0
RESIDENTIAL DESIGN GUIDELINES