About Willunga
Council's just given the nod for Pear Tree Paddock at 247 Main Road to move forward as an RV park — that means new grey water disposal arrangements, servicing infrastructure, and a whole lot of ground disturbance coming to that corner of Willunga over the next year or two. Meanwhile, SA Water's been grinding through a water main replacement on Norman Road since early 2026, due to wrap up by June — if you're on that stretch and your pressure's been weird or your water's running discoloured, that's your answer. May's already dropped 29mm across two decent rain events, and on reactive clay like Willunga's got, that's enough to shift ground and stress old joints. The older cottages through the township — some dating back to the 1800s — are still running legacy clay and galvanised lines that don't forgive movement. Add in the fact most properties here are on CWMS rather than mains sewer, and you've got a suburb where a blocked drain can escalate to a septic pump failure before you've finished your morning coffee. If something's gone wrong, call us — we'll get a plumber out who knows what they're walking into.
City of Onkaparinga notes
“Council resolved to note the Willunga Recreation Park Volunteers as the preferred proponent for an RV park at Pear Tree Paddock (247 Main Road), subject to planning approvals, public consultation, and confirmation of grey water disposal arrangements.”
City of Onkaparinga
New grey water infrastructure and ground disturbance at 247 Main Road means potential service connection work and disruption to nearby properties — if you're on Main Road or adjacent streets, watch for pressure changes or drainage issues as works progress.
“Mayor's calendar included a Community Listening Post at Willunga Farmers Market on 9 May 2026 and a Willunga Jigsaw Mania presentation on 3 May 2026.”
City of Onkaparinga
Council's actively engaging with Willunga residents on budget priorities — if drainage or infrastructure upgrades are on your wishlist, this is the window to push for them.
Willunga profile
The City of Onkaparinga covers a large mix of established southern Adelaide suburbs (Reynella East, Aberfoyle Park, Coromandel Valley, Huntfield Heights, Christies Beach, Noarlunga) with predominantly 1970s–1990s detached housing stock, alongside newer growth-front estates (Seaford, Aldinga, Sellicks Beach) and rural/semi-rural fringe areas (Cherry Gardens, Ironbank, McLaren Flat, Willunga). Older 1970s–80s housing in Aberfoyle Park, Reynella and Christies Beach typically has aging galvanised/copper plumbing and original switchboards — high candidates for plumbing and electrical emergencies. Coastal suburbs face ongoing erosion and stormwater issues. Land revocations at Huntfield Heights and Aberfoyle Park indicate continued infill development. The City of Onkaparinga is one of South Australia's largest councils by population, spanning southern metropolitan Adelaide from Reynella to Sellicks Beach and inland to Willunga and the McLaren Vale wine region. The council manages diverse infrastructure including coastal assets, the CWMS (community wastewater) network operated under contract by Trility until 2029, and is coordinating with SA Water on major mains works (Norman Road, Murray Road). Active state election commitments include intersection upgrades on Happy Valley Drive and stormwater partnerships. Mix of older established housing, coastal communities and growth-front estates means consistent demand for emergency plumbing (burst pipes, blocked drains, hot water), electrical (aging switchboards, storm damage) and roofing (coastal weather, hail) services.
The township core around High Street and St Peters Terrace is where you'll find the oldest housing stock — some of those cottages have clay sewer lines that have been in the ground since before Federation, and they don't handle root intrusion or ground movement well. Out towards Willunga Hill and the surrounding rural blocks, it's more 1970s–80s builds on CWMS, with copper and poly supply lines that are hitting their 40-year mark. When the reactive clay under these blocks swells after rain, joints shift and seals fail — that's why May's 29mm has already started showing up in callouts. If you're on an established block with mature trees, root intrusion is almost guaranteed at some point.
When calls come in: Callouts tend to cluster in the early morning and evening — that's when households hit their hot water and drainage systems hardest. CWMS pump failures often get noticed overnight when usage drops and the alarm finally triggers.