Perth Councils Battling Duplicate Property Images That Are Costing Homeowners Thousands

Duplicate images embedded in property records, planning portals and council databases are quietly generating costly disputes for Perth homeowners — wrong photographs attached to the wrong lots, outdated aerial shots showing structures that no longer exist, and duplicated imagery that leaves valuers, buyers and permit assessors working from contradictory information.

The issue has surfaced as Western Australia's residential property market remains under intense pressure. The State Government's Metronet expansion has opened new development corridors from Yanchep to Ellenbrook, triggering a wave of subdivision applications, dwelling approvals and rezoning requests — all of which depend on accurate spatial data and site imagery held by local governments and the Department of Planning, Lands and Heritage.

Why Outdated and Duplicated Images Create Real Costs

When a council planning officer assesses a development application in, say, Midland or Balga, they pull site imagery from a GIS system that may cache photographs from multiple aerial survey rounds. If a duplicate image from a previous survey cycle sits alongside a more recent one — and the system fails to flag which is current — an officer can assess a block that appears vacant when a dwelling already stands there, or vice versa. Disputes then run through the State Administrative Tribunal, which handles planning and land valuation appeals for Western Australia, and legal costs climb quickly.

A straightforward SAT application for a planning dispute can cost a homeowner between $1,500 and $8,000 in legal and specialist fees before the matter resolves, according to published fee schedules and practitioner estimates widely circulated in the WA conveyancing industry. Delays in a subdivision approval can push settlement dates back by weeks, costing vendors and buyers in bridging finance.

The City of Stirling and the City of Wanneroo, two of Perth's largest and fastest-growing local government areas, both operate planning portals integrated with Landgate's statewide mapping infrastructure. Landgate, the WA government's land information authority based in Midland, manages the spatial data layer that most council systems draw from. When Landgate's imagery library contains duplicates — an acknowledged risk during any large-scale re-survey program — errors cascade downstream into council systems almost automatically.

What Perth Residents Should Check Now

Landgate's aerial photography program covers the Perth metropolitan region on a rolling cycle, with urban areas typically re-surveyed every one to two years. A re-survey of the Perth metropolitan fringe was completed in late 2025, meaning many councils are currently reconciling new imagery against existing records — a process during which duplicate or mismatched images are most likely to create problems.

Homeowners in suburbs undergoing significant change — Alkimos, Eglinton, Brabham and the Ellenbrook town centre among them — should proactively check their property's listing on the Landgate property search portal, accessible via landgate.wa.gov.au, to confirm that the site photograph and lot boundary match the physical reality of their block. Any discrepancy should be reported to Landgate's customer service team before lodging a planning application or listing a property for sale.

Real estate agents operating along the William Street corridor in Northbridge and through the inner suburbs of Highgate and Mount Lawley have also flagged cases where commercial premises appeared under duplicate image entries in planning registers, complicating heritage assessments.

The practical advice from conveyancers is direct: never assume the image on a council or Landgate record is current. Request an updated site photograph as a condition of any development application, and if you are purchasing a property that has been recently subdivided or where structures have been added or demolished in the past three years, ask your settlement agent to confirm that the imagery on file matches a current title inspection. The extra step takes days, not weeks, and sidesteps disputes that can take months to resolve through the SAT.

The WA Department of Planning, Lands and Heritage is expected to publish updated data governance guidelines for local government planning systems later in 2026, as part of a broader digital reform program announced in the State Budget earlier this year.