Greenhill Road Infrastructure Works — Expect Underground Service Disruptions
City of Unley · Council intelligence · Last updated April 2026
“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, City of Unley, 23 March 2026
They're scoping works along Greenhill Road from Anzac Highway right through to Fullarton Road — that's the full stretch bordering Unley Park to the north. Any excavation in that corridor can shift ground, disturb old connections, and knock ageing sewer or stormwater lines that haven't been touched in decades. If you're in one of those streets that back up toward Greenhill and you've been ignoring a slow drain or a damp patch near the footings, now's the time to get it looked at before someone else's dig makes it your problem.
“NOTICE OF MOTION FROM COUNCILLOR M BRONIECKI RE: WALKING AND CYCLING INFRASTRUCTURE ON GREENHILL ROAD”
Full Council, City of Unley, 23 March 2026
This one's still at the investigation stage, but when councils start formally investigating infrastructure on a main road corridor, works usually follow. Greenhill Road is Unley Park's front boundary — tradie access from the north could get complicated if lanes close or verges get dug up. Good to know we're watching it.
“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, City of Unley, 23 March 2026
Not directly a plumbing item, but Unley Oval sits right in the pocket of the suburb and the council is clearly spending up on the facilities there. Oval irrigation and groundswater management puts load on local drainage infrastructure — worth keeping in mind if you're on the streets closest to the oval and you're seeing wet ground or slow stormwater clearance after rain.
The City of Unley is looking at infrastructure upgrades along Greenhill Road — the main artery that runs right along Unley Park's northern edge. Any road works up there mean digging, and digging near older suburban streets puts pressure on the underground services that feed into the houses behind it. Unley Park is solid older housing stock — think pre-1960s sandstone and brick, with clay pipes and lead junctions that were already well past their best before date. Worth knowing what's coming.
If you're in Unley Park dealing with slow drains or rusty water out of the tap, you're not alone — it's the age of the housing stock and what's underneath that counts. The sandstone and brick homes around here have character, but the pipes feeding them are often 60+ years old. Council's infrastructure work on Greenhill Road is worth keeping an eye on too; any major digging near the main service lines can shift things around. Quick call to a local plumber who knows the area saves a lot of guessing.
- Tree root intrusion into clay sewer lines — the big established gardens on larger blocks are the culprit
- Cracked or collapsed terracotta pipes under slabs — pre-1960s homes are sitting on reactive clay that shifts seasonally
- Low water pressure or rusty water from original galvanised or lead cold water mains — never been replaced since first fit
- Hot water unit failures — most are old storage systems in laundries or garages, undersized for household demand
- Leaking gutters and downpipe connections tracking water back into sandstone and brick walls — the older the home, the worse the detail
- Blocked or slow drainage after heavy rain events — clay pipes don't move well when saturated
- Lead solder or junction corrosion affecting water quality — a real issue in homes from the 1950s and earlier