Water Sensitive SA

WSUD policy

Planning and Design Code water sensitive urban design policy

The Draft Planning and Design Code policies for stormwater management can be found in the Planning and Design Code under:

  • Small-scale residential Part 3 – Overlays – Stormwater Management, PO 1.1, DTS/DPF 1.1
  • Medium-scale residential Part 4 – Design in urban areas, water sensitive urban design, PO36.1, DTS/DPF 36.1 (water quality) and DTS/DPF 36.2 (flow and volume management).

Following is a guide on how the stormwater runoff quality and peak flow rate management requirements can be met for a range of scales of development.

Planning approval pathway and key policies for water sensitive urban design - March 2021

Planning approval pathway and key policies for water sensitive urban design – March 2021

SA State water sensitive urban design policy – extract

Water conservation

Demonstrated compliance with SA residential building requirements for water efficiency

Non-residential: Water efficient techniques in commercial, industrial & other non-residential urban settings

Irrigated open spaces: Best practice irrigation management in outdoor irrigated open spaces

Stormwater runoff quality

45%

retention of typical annual urban load of total nitrogen

60%

retention of typical annual urban load of total phosphorus

80%

retention of typical annual urban load of suspended solids

Waterway protection

Rate of runoff discharged from the site does not exceed the pre-urban development for the 1 year average recurrence interval (ARI) peak flow

Flood management

Capacity of the existing drainage system is not exceeded

No increase in the 5 year ARI peak flow compared to existing conditions

No increase in flood risk for the 100 year ARI peak flow, compared to existing conditions

Download a copy of the SA water sensitive urban design policy (refer to page 11)