Perth Councils Caught Holding Duplicate Property Images — and It's Costing Residents More Than They Realise

Landgate and several Perth metropolitan councils are sitting on property databases riddled with duplicate and mismatched images — and the problem is now intersecting with one of the most strained housing markets the city has seen in decades. With Perth's median house price hovering around $900,000 as of the June 2026 quarter and rental vacancy rates among the lowest in the country, any friction in the property assessment and approvals pipeline carries real consequences for residents trying to buy, sell, or develop.

The issue surfaced publicly this year when community groups in Midland and Cannington began raising concerns at council meetings about valuation discrepancies on properties where assessment records contained photographs of neighbouring or entirely different lots. When a property's official imagery doesn't match the actual structure on the ground, the downstream effects ripple through valuations, heritage assessments, and development approval timelines.

What Goes Wrong When the Wrong Photo Is in the System

The mechanics are straightforward but the consequences are not. A duplicate image — say, a photograph of a 1970s double-brick home in Bayswater accidentally linked to a vacant infill block in Belmont — can trigger an automated valuation flag that sends an assessor back to the site, adding weeks to a process that the City of Belmont, like most Perth councils, already lists as taking between 30 and 60 business days for a standard development application. That delay matters when a family has a construction contract with a fixed start date, or when a first-home buyer is waiting on finance conditional on a formal valuation.

The State Records Office of Western Australia classifies property imagery held by local governments as a Category 2 retention record, meaning it must be kept for defined periods and cannot simply be overwritten without an audit trail. This creates a structural problem: outdated photographs accumulate alongside newer ones, and without a systematic deduplication process, caseworkers may pull the wrong file. The Department of Finance's Valuer General's Office, which oversees statutory valuations for rating and taxing purposes, declined to comment on specific council data quality standards when contacted this week.

Residents in suburbs like Morley and Redcliffe, where Metronet's Morley-Ellenbrook Line construction is accelerating land activity and triggering new valuations on corridor-adjacent properties, are particularly exposed. Incorrect imagery attached to a lot scheduled for compulsory acquisition or rezoning can delay a landowner's right to challenge a valuation at the State Administrative Tribunal, where backlogs have extended some property matters past the 12-month mark.

Practical Steps Perth Residents Can Take Now

The fix at a personal level is not complicated, but most people don't know they need to act. Landgate's online property interest reports, available through the MyLandgate portal for $42.20 each as of July 2026, allow individual owners to check what imagery and attributes are attached to their certificate of title record. Property experts who spoke generally — not on the record — have suggested owners do this check before lodging any development application or accepting a pre-purchase valuation report.

At the council level, the City of Stirling, which administers one of the largest residential portfolios in the metropolitan area across suburbs from Osborne Park to Scarborough, confirmed in its 2025–26 annual budget documentation that it had allocated funds toward a geographic information systems upgrade. Whether that work specifically addresses duplicate imagery at the record level is not publicly detailed in the budget papers.

The Western Australian Local Government Association has flagged data standardisation as a priority in its advocacy to the state government, though it has not publicly set a deadline for resolving image duplication issues across member councils.

For residents, the clearest immediate step is to pull their Landgate property record before any transaction or application — not after a problem emerges. With Perth's construction pipeline already stretched by demand from AUKUS-related workforce housing near Henderson and Garden Island, and immigration-driven pressure across the northern corridor from Joondalup to Ellenbrook, the last thing the city needs is administrative drag from a solvable data hygiene problem.