Stormwater & Drainage for New Homes and Renovations
New home stormwater systems, stormwater connections and drainage for extensions and renovations across Gawler, Two Wells, Virginia, Angle Vale and Adelaide's northern suburbs. Planned with the build and handled by the same team, so the water from your roof and paving goes where it should.
Getting the water away from the house
Every new home, extension and outdoor area changes where the rain goes. Roofs, gutters, downpipes and paving all collect water, and it has to be carried away from the house and the boundaries, not left to pond against the slab or run onto a neighbour's block. Get it wrong and you can end up with damp, soil movement or a dispute next door.
We take care of stormwater as part of the build: the downpipes, the underground pipework and the connection out to the street or easement, worked out with the site plan and the approved drawings. On renovations and extensions we look at the existing drainage too, because a new roof or a bigger paved area adds water the old system was never sized for.
Requirements vary by council and by site, so we confirm what your council and your approved plans require before the work starts.
See the full range on our building & renovation services page, or browse our completed work.
What councils ask for: the Gawler example
Each council sets its own requirements. The Town of Gawler, for example, requires stormwater from all roofs, gutters, downpipes, paved areas and garden areas to be drained to the street watertable or a stormwater easement, through steel, concrete or class 12 PVC pipes or steel box sections laid below the level of the footpath. It also sets out simple rules for water disposal: discharge away from buildings and boundaries, don't let water pond, and don't let it flow across the footpath or verge.
In Gawler, a stormwater pipe to the street kerb needs a Section 221 permit to alter a road unless it's already authorised under the development approval, and council will cut the kerb for the pipe free of charge, with the owner reinstating it afterwards. Council points to the National Construction Code and the stormwater drainage standard AS/NZS 3500.3 as the rules that govern stormwater disposal. Source: Town of Gawler, Land Development (checked 23 October 2026).
Building in Two Wells (Adelaide Plains Council) or Virginia (City of Playford)? The principle is the same, and we check that council's requirements for your address. See also our builders in Gawler page.
What our stormwater work covers
New Home Stormwater Systems
Roof and paving drainage planned with the site plan for new homes: downpipes, underground pipework and the connection to the street or easement.
Discuss your projectConnections & Permits
Where a connection crosses the verge to the kerb, council permission is often needed. We arrange it as part of the job.
Discuss your projectExtensions & Renovations
New roofs, alfrescos and paving tied into the stormwater, and the existing drainage checked so the extra water has somewhere to go.
Discuss your projectHow we handle stormwater on your build
- Step 1
Site and plans
We look at the block, the levels and the approved plans, and where the water needs to end up.
- Step 2
Council requirements
We confirm what your council requires for your address, including any permit for a connection across the verge.
- Step 3
Planned with the build
The stormwater is sequenced with the slab, frame and roof, not left until the end.
- Step 4
Install and connect
Downpipes, underground pipework and the connection to the street or easement go in.
- Step 5
Check and handover
The system is checked before handover, and we show you where it all runs.
Why let your builder handle the stormwater
Stormwater works best when it's planned with the house rather than added at the end. As a licensed SA builder (BLD 360698), we build the house and the drainage together, so there's one team responsible for both.
Want to know more about the team behind the work? Read about ASP Build & Co.
Part of the build
Planned with the slab, roof and paving from day one.
Council requirements checked
We confirm what your council asks for before work starts.
Northern corridor local
Gawler, Two Wells, Virginia, Angle Vale and Munno Para, around our Riverlea Park builds.
One point of contact
Anthony runs the job, so you're not chasing a separate contractor.
Stormwater & Drainage: your questions
Do you install stormwater systems for new homes?
Yes. Stormwater and drainage are part of our new home builds and extensions: the downpipes, underground pipework and the connection to the street or easement, planned with the site plan and the approved drawings.
Where does stormwater have to go?
It depends on your council and your site. The common rule is to discharge away from buildings and boundaries and not let water pond. In Gawler, for example, the Town of Gawler requires roof, paving and garden stormwater to drain to the street watertable or a stormwater easement, through steel, concrete or class 12 PVC pipes or steel box sections below footpath level. Other councils have their own requirements, which we check for your address.
Do I need a permit to connect stormwater to the street?
Often. In Gawler, a stormwater pipe to the kerb needs a Section 221 permit to alter a road unless it's already authorised under the development approval, and council will cut the kerb for the pipe free of charge, with the owner reinstating it. Other councils have their own process. We look after it as part of the job.
Can you sort out drainage when we extend or renovate?
Yes. A new roof, alfresco or paved area adds water, so we tie it into the stormwater and check the existing drainage as part of the extension or renovation. If you have a drainage problem on its own, get in touch and we'll tell you honestly whether it's a job for us.
Which areas do you do stormwater work in?
Mainly Adelaide's northern corridor, as part of our builds: Gawler, Two Wells, Virginia, Angle Vale, Munno Para, Riverlea Park and Elizabeth. Get in touch to check your address.
Is ASP Build & Co licensed?
Yes. ASP Build & Co holds South Australian Builder's Licence BLD 360698 and PGE licence PGE 333 827, both issued by Consumer and Business Services SA.
Building or extending? Talk to us about the drainage
Tell us about your block and your plans. We'll look at where the water needs to go, check what your council requires and include it in a clear, detailed quote.