Growing our water and wastewater network

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We’re investing in water and wastewater infrastructure to support housing growth and ensure our community has access to reliable water services now and into the future.

Why we are growing our networks

We’re working with the State Government and industry leaders to deliver effective water and wastewater solutions to support housing growth. This is the biggest expansion of our metropolitan water and wastewater network in decades, and it’s crucial for new housing developments on the outskirts of Adelaide, particularly in the northern suburbs. These areas need large-scale infrastructure to ensure reliable water and wastewater services for growing communities.

Unlocking new homes for the future

As part of the State Government’s Housing Roadmap, SA Water are investing $1.5 billion during the next 4 years to grow and expand our water and wastewater networks to enable an estimated 40,000 new homes to be built across South Australia. This includes an unprecedented $1.2 billion investment in critical growth infrastructure specifically across Adelaide’s north and south to directly unlock 11,000 new homes where they’re needed the most.

With ongoing investment, the network will eventually support up to 50,000 new homes by the 2050s, helping create sustainable and thriving communities. Read more about how we're supporting housing growth

What’s included in the upgrades?

Our planned works include:

  • 30 kilometres of new trunk water mains
  • 54 kilometres of trunk wastewater mains
  • 9 new water and wastewater pumping stations
  • 2 new water storage tanks

Where the upgrades are happening

This directly enables new homes to be built in development areas across Adelaide’s north and south, including:

  • Angle Vale
  • Blakeview
  • Eyre
  • Gawler East
  • Riverlea
  • Roseworthy
  • Onkaparinga Heights (formerly Hackham)
  • Virginia

Minimising disruptions while we deliver

To deliver this essential infrastructure, we’re working across multiple sites, mainly in Adelaide’s northern suburbs. We work closely with local communities throughout construction to minimise disruptions and make sure the work is completed safely and efficiently.

What happens to roads and footpaths after our works?

We work closely with the local council and follow all required reinstatement obligations, reinstating the parts of the road, footpath or the environment directly impacted by our works.

Find out more about reinstatement

Keep informed and get involved

We’re keeping local communities and stakeholders informed as we deliver these essential network upgrades. Through communication with residents and businesses, online updates, local advertising, and regular meetings with local and state government, we’re making it easy for everyone to learn about the project, share feedback, and stay updated on progress and impacts in their area.

Read our Community Newsletter

Find out more about how you can connect with our team

Learn more

Find out about planned works near you


Find out about detours near you


Davoren Park, Elizabeth North

Edinburgh North and Penfield

Gawler Belt, Roseworthy

Munno Para, Munno Para West, Blakeview

Smithfield, Smithfield Plains

Virginia


We’re investing in water and wastewater infrastructure to support housing growth and ensure our community has access to reliable water services now and into the future.

Why we are growing our networks

We’re working with the State Government and industry leaders to deliver effective water and wastewater solutions to support housing growth. This is the biggest expansion of our metropolitan water and wastewater network in decades, and it’s crucial for new housing developments on the outskirts of Adelaide, particularly in the northern suburbs. These areas need large-scale infrastructure to ensure reliable water and wastewater services for growing communities.

Unlocking new homes for the future

As part of the State Government’s Housing Roadmap, SA Water are investing $1.5 billion during the next 4 years to grow and expand our water and wastewater networks to enable an estimated 40,000 new homes to be built across South Australia. This includes an unprecedented $1.2 billion investment in critical growth infrastructure specifically across Adelaide’s north and south to directly unlock 11,000 new homes where they’re needed the most.

With ongoing investment, the network will eventually support up to 50,000 new homes by the 2050s, helping create sustainable and thriving communities. Read more about how we're supporting housing growth

What’s included in the upgrades?

Our planned works include:

  • 30 kilometres of new trunk water mains
  • 54 kilometres of trunk wastewater mains
  • 9 new water and wastewater pumping stations
  • 2 new water storage tanks

Where the upgrades are happening

This directly enables new homes to be built in development areas across Adelaide’s north and south, including:

  • Angle Vale
  • Blakeview
  • Eyre
  • Gawler East
  • Riverlea
  • Roseworthy
  • Onkaparinga Heights (formerly Hackham)
  • Virginia

Minimising disruptions while we deliver

To deliver this essential infrastructure, we’re working across multiple sites, mainly in Adelaide’s northern suburbs. We work closely with local communities throughout construction to minimise disruptions and make sure the work is completed safely and efficiently.

What happens to roads and footpaths after our works?

We work closely with the local council and follow all required reinstatement obligations, reinstating the parts of the road, footpath or the environment directly impacted by our works.

Find out more about reinstatement

Keep informed and get involved

We’re keeping local communities and stakeholders informed as we deliver these essential network upgrades. Through communication with residents and businesses, online updates, local advertising, and regular meetings with local and state government, we’re making it easy for everyone to learn about the project, share feedback, and stay updated on progress and impacts in their area.

Read our Community Newsletter

Find out more about how you can connect with our team

Learn more

Find out about planned works near you


Find out about detours near you


Davoren Park, Elizabeth North

Edinburgh North and Penfield

Gawler Belt, Roseworthy

Munno Para, Munno Para West, Blakeview

Smithfield, Smithfield Plains

Virginia


  • Stay informed and have your say

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    As we upgrade our water and wastewater networks, we’d love to hear from you. Your feedback helps us understand what’s working well and where we can improve. Visit this link to have your say.

    Read our Community Newsletter for updates on works happening near you, how we’re working to minimise disruptions, and ways to stay informed.

Page last updated: 18 Jun 2025, 03:54 PM