About Hazelwood Park
City of Burnside's veteran tree review is putting Hazelwood Park Reserve under the microscope right now — sonic tomography inspections on those big old gums along Greenhill Road and Portrush Road are happening through April and May 2026. That matters for plumbing because when council starts assessing root systems and canopy health, they're looking at the same trees that have been hunting through your sewer lines for decades. The Glynburn Road pedestrian ramp upgrades between Young Street and Sidney Place wrapped up in April, but the embankment works along that same stretch mean ground disturbance that can shift old terracotta connections. We copped 14mm on the 2nd and another 15mm on the 4th this month — not huge, but enough to test whether your stormwater system's actually draining or just pooling in that clay. If you're on Lerwick Avenue or Linden Avenue with an original 1950s build, those back-to-back rain events are exactly when root-cracked sewer lines start backing up. Call us now and a plumber we dispatch can scope your lines before the next wet spell turns a slow drain into a sewage problem.
City of Burnside notes
“In response to recent branch failures involving several large, older Council-managed gum trees, a review of veteran tree management practices is underway. This review includes detailed inspections of veteran trees along Greenhill Road and Portrush Road, as well as trees in Hazelwood Park Reserve and Tusmore Park.”
City of Burnside
When council's assessing root systems on those big gums, they're mapping the same root networks that have been cracking terracotta sewer lines across Hazelwood Park for decades — if you're near the reserve or along Greenhill Road, now's the time to camera your sewer before root management changes drainage patterns.
“Swing at Hazelwood Park — Question on Notice regarding the liberty swing donated in 2011, with playground refresh due for 2027/28.”
City of Burnside
The Hazelwood Park playground refresh in 2027/28 will mean ground disturbance near the reserve — properties backing onto the park should expect potential impacts to any private stormwater connections that run toward reserve drainage.
“Precinct Plan for Dulwich, Rose Park, Toorak Gardens, Frewville, Glenunga and Eastwood adopted — includes 28 proposed treatments across streetscape, traffic management and active transport.”
City of Burnside
While Hazelwood Park isn't directly in this precinct plan, the broader Burnside traffic and streetscape works signal ongoing ground disturbance across eastern suburbs — any roadworks near your property boundary can shift old sewer and water connections.
Hazelwood Park profile
City of Burnside covers eastern Adelaide from the inner suburbs to the Mount Lofty foothills — pre-war sandstone and Federation homes in the older streets, mid-century brick veneer across the main residential areas, and modern infill on larger blocks. Housing stock from the 1920s through 1970s means original galvanised iron supply lines, terracotta sewer pipes, and ageing copper hot water runs are standard. Mature tree canopy across the council area is the primary driver of root intrusion — established gums, figs, and plane trees have had 50-70 years to find every cracked joint in clay and terracotta sewer lines. Foothills terrain creates faster stormwater runoff and puts pressure on ageing pit infrastructure during heavy rain. The council's current capital works program includes traffic treatments and streetscape upgrades that disturb road reserves and expose service connections.
Lerwick Avenue and Linden Avenue are where we see the most root-related sewer failures — both streets have that classic Hazelwood Park setup of 1950s brick homes on generous blocks with mature eucalypts planted decades ago. The original terracotta sewer lines run 15-20 metres from house to main, and every joint is a potential entry point for roots hunting moisture through the clay. Hawthorn Crescent and Seaton Avenue are seeing new builds go up now, which means fresh PVC connections sitting next to 70-year-old terracotta — when the new work disturbs the ground, the old pipes often fail within 12-18 months. The flat allotments closer to the reserve drain worst because there's no natural fall and the clay holds water like a sponge.
When calls come in: Hazelwood Park calls cluster in early morning (6-8am) when families hit showers and toilets simultaneously, exposing partial blockages that handled overnight low-use fine. Evening calls (6-9pm) spike after dinner when dishwashers and washing machines push grease and debris through already-compromised lines.