Greenhill Road Corridor Works — Access Changes for Malvern
City of Unley · Council intelligence · Last updated April 2026
“NOTICE OF MOTION FROM COUNCILLOR M BRONIECKI RE: WALKING AND CYCLING INFRASTRUCTURE ON GREENHILL ROAD”
Full Council, 23 March 2026
There's a formal motion on the table to look at upgrading Greenhill Road — which runs right along Malvern's northern edge. Where there's investigation, there's eventually digging. Older sewer and stormwater pipes that run under or near that road corridor could cop pressure once earthworks start. If you've got a drain that's already slow, get it looked at before the machinery shows up.
“Administration work with staff from the City of Adelaide and the City of Burnside to investigate the provision of improved walking and cycling infrastructure along the southern boundary of the Adelaide Park Lands fronting Greenhill Road from Anzac Highway to Fullarton Road.”
Full Council, 23 March 2026
Three councils are now coordinating works along the full Greenhill Road stretch — that's a big corridor and a serious amount of potential ground disturbance. For Malvern properties that back onto or drain toward Greenhill Road, it's worth getting your stormwater and sewer lines checked now. When road works hit older clay mains, the vibration alone can shift connections that were already borderline.
“The total cost to Council of maintaining the playing surface at Unley Oval for football and cricket differs from year to year as there are various factors that can impact cost. For the 2024-25 financial year, the total cost to Council was $85,172 (excluding GST). This comprises a cost of $28,372 for football (excluding temporary fencing for Sturt Football Club matchdays) and $56,800 for cricket.”
Full Council, 23 March 2026
Unley Oval is right on the doorstep for Malvern residents. This one's not directly a plumbing issue, but it tells you the council is actively spending on local facilities — which means contractors and machinery in and around the precinct through the season. If you're near the oval end of the suburb, keep an eye out for road closures that could affect tradie access or turnaround times on a callout.
Malvern sits tight up against Greenhill Road — and right now the City of Unley is pushing hard to rework that corridor from Anzac Highway through to Fullarton Road. That means road works, kerb changes, and digging along one of the main boundaries of the suburb. For homes in Malvern, a lot of the stormwater and sewer connections are already doing it tough — most of the housing stock here dates back to the 1940s through 60s, clay and terracotta pipes under the slab, and any significant road disturbance nearby can shift things enough to crack a junction or collapse a drain. Worth knowing before you call.
If you're renting or own in Malvern, the older the house the higher the plumbing risk — it's just how it is with 1940s–60s builds and clay pipes. A camera inspection on the sewer line costs a couple hundred and tells you whether you're sitting on a $5k problem or not. The council works on Greenhill aren't going away, so if you've noticed slow drains or damp patches, get ahead of it. Early call beats emergency call every time in a suburb like this.
- Tree root intrusion into terracotta and clay sewer lines — gums and liquid ambers along Malvern's streets are thick, and roots find water mains
- Cracked or collapsed clay sewer lines under slabs — pre-1970 builds that have never had a camera inspection done
- Stormwater overflow and pooling after rain — older spouting and downpipe connections not rated for Adelaide's wet bursts
- Blocked drains in terracotta pipes — slow drains that suddenly stop, tree roots the usual culprit
- Hot water unit failures in retrofitted garages and laundries — older storage systems that were never meant to last 30+ years
- Leaking garden-side taps and failing isolation valves — high-pressure mains combined with ageing brass fittings
- Ground movement and pipe stress from council road works — Greenhill Road corridor works putting load on nearby sewer and water connections
- Rising damp and water ingress in older rendered brick — not plumbing per se, but moisture coming in through failed external plumbing
- Copper pipe corrosion in post-war homes — some Malvern stock from the 50s–60s still running original copper with pinhole leaks