Supporting housing growth

We are expanding our water and wastewater network to support housing growth.

This is the largest upgrade to our metropolitan water and wastewater network in decades. It will help make sure new homes have safe, reliable water and wastewater services.

Much of this work is happening on the edge of our existing networks, especially in Adelaide’s northern suburbs. These growing areas need new, large-scale infrastructure to support future communities.

Learn more about works in Adelaide's northern suburbs

Over the next 4 years, we are investing $1.5 billion to grow our water and wastewater networks.

This investment helps enable the construction of around 50,000 new homes across South Australia.

It includes $1.2 billion investment in major infrastructure in Adelaide’s north and south, helping to deliver 11,000 new homes where they’re needed the most.

Planned upgrades include:

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

Some projects are already underway. New projects started during 2025 and will continue over the next four years.

These upgrades will support housing growth in Adelaide’s northern areas including:

• Roseworthy
• Riverlea
• Dry Creek
• Angle Vale
• Blakeview

This infrastructure also prepares the network for the future. With ongoing investment, it will be able to support up to 50,000 new homes by the 2050s.

This helps create sustainable, well serviced communities for generations to come.

Our delivery program outlines the planned water and wastewater works through to 2028.

It provides an overview of when and where major upgrades will take place.