Servicing growth & release areas

Houses being constructed next to road

We're planning new water and wastewater services for Sydney's south-west.

We're planning and building new water and wastewater infrastructure to enable development in the growth areas. This infrastructure is essential to allow development as outlined in the NSW Government’s A Plan for Growing Sydney.

NSW Planning and Environment is responsible for rezoning land and the sequence of land release in priority growth areas. They work in consultation with relevant local councils, NSW Government agencies and developers.

What we're doing

Sydney's North West is growing, with half a million people expected to live and work in the area by 2040. To ensure we're ready to meet future demand, we've started the $450 million Lower South Creek Treatment Program (LSCTP). 

This is one of the largest wastewater programs in the country, which will:

  • increase the size and capacity of our wastewater treatment plant in Riverstone
  • upgrade our water recycling plants at Quakers Hill and St Marys
  • introduce new leading-edge wastewater technology - an Australian first that will deliver significant sustainability benefits. 

Delivered by a joint venture between UGL Limited and WSP Parsons Brinckerhoff, the program is adopting several Australian-first innovative wastewater technologies including:

  • thermal hydrolysis which will be used at St Marys to reduce energy costs by producing more renewable electricity onsite
  • leading edge wastewater technology from the Netherlands which will be used at Quakers Hill. It is energy efficient and has a significantly lower carbon footprint than the standard technology.

Construction has started at our Riverstone, Quakers Hill and St Marys sites. We expect to complete the work by the end of 2021.

To know more, contact us by:

We're building new drinking water and wastewater infrastructure to service about 33,000 new homes in the Blacktown, Hawkesbury and Hills local government areas.

  • Location - Box Hill, Marsden Park, Riverstone, Rouse Hill, Schofields and Vineyard
  • Timeframe - in stages between 2009 and 2019

Learn more about the North West Growth Area.

South West Growth Area

The South West Growth Area (SWGA) was established in 2005 to encourage a sustainable plan for Sydney's greenfield land development. The total area of the SWGA is 17,000 hectares that is split into 18 precincts. We define the SWGA as the area south of Elizabeth Drive to Oran Park.

We're building new drinking water and wastewater infrastructure to service about 200,000 new homes in Sydney's south west. The SWGA is covered by both Camden and Liverpool Local Government Areas.

  • Location - Austral, Leppington, Leppington North, Edmondson Park, Oran Park, Catherine Fields, Turner Road, Spring Farm
  • Timeframe - in stages between 2015 and 2030

Learn more about the South West Growth Area.

Wilton Growth Area

  • Location - Wilton
  • Timeframe - in stages between 2018 and 2025

We're planning new drinking water, wastewater, recycled water and stormwater services for about 15,000 new homes at Wilton, located in the Wollondilly Shire.

Learn more about the Wilton Growth Area.

The West Dapto Urban Release Area and Adjacent Growth Areas are about 15 kilometres south west of Wollongong. They're within Wollongong and Shellharbour City Council areas.

New water and wastewater infrastructure will be needed for about 30,000 homes and about 500 hectares of non-residential development in the Illawarra region.

Dunmore Urban Release Area

  • Location - Dunmore
  • Timeframe - in stages between 2017 and 2020 

We're planning new drinking water and wastewater infrastructure to service about 500 new dwellings in the Shellharbour local government area.
Learn more about the Dunmore Urban Release Area.

West Dapto Urban Release Area and Adjacent Growth Areas

  • Location - Avondale, Cleveland, Kembla Grange, Sheaffes/Wongawilli, West Horsley, and Yallah/Marshall Mount. Adjacent areas Calderwood, Huntley, Tullimbar and Tallawarra
  • Timeframe - in stages between 2014 and 2048

Learn more about the West Dapto Urban Release Area and Adjacent Growth Areas.

Green Square Stormwater Drain Project

  • Location - Green Square Town Centre
  • Timeframe - construction started in May 2015 and is expected to be completed by mid 2019

We're building a new stormwater drain to reduce the risk of flooding in Green Square Town Centre.

This work is being done in partnership with City of Sydney Council.

Learn more about Green Square Stormwater Drain Project.

Have your say about our projects

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Your feedback is important to us.

Visit Sydney Water Talk to learn more about our projects and provide feedback.