Perth's Fight Against Duplicate Property Listings Puts It Ahead of London and Singapore — But Behind Vancouver

Perth's red-hot property market has a data problem. Duplicate images — the same photographs appearing across multiple listings, sometimes for entirely different properties — are undermining buyer confidence and skewing automated valuation tools at a time when the city can least afford it. With median house prices in Perth's inner suburbs now exceeding $1.1 million and rental vacancy rates sitting near record lows, a misleading listing photograph is no longer a minor inconvenience. It can cost a buyer six figures.

The issue gained fresh urgency this year as the state government's Metronet rail expansion opened new corridors through Ellenbrook and Yanchep, triggering a wave of off-the-plan and newly-constructed listings. Developers uploading project renders and stock photography to platforms like realestate.com.au and Domain have frequently reused the same image sets across dozens of individual lots, making it genuinely difficult for buyers — or the algorithms that price properties — to distinguish one dwelling from another. The Real Estate Institute of Western Australia flagged the problem at its May 2026 industry forum in Subiaco, though a formal policy response has not yet been announced.

Where Perth Sits on the Global Scale

Internationally, the response to duplicate listing imagery has varied sharply. Vancouver's Real Estate Board mandated a unique-image policy for all MLS listings in March 2025, requiring at least four distinct, address-verified photographs per property before a listing can go live. Non-compliance draws a $500 CAD fine per listing. Singapore's Urban Redevelopment Authority went further in January 2026, integrating image-hash verification directly into its government-linked property portal PropertyGuru SG, automatically flagging any photograph that appears in more than three active listings simultaneously.

London's approach has been more fragmented. Rightmove introduced a voluntary duplicate-detection tool for member agencies in mid-2025, but uptake among smaller independent agents in boroughs like Southwark and Lewisham remained patchy through the first quarter of 2026. Industry observers in the UK noted that without a regulatory backstop, voluntary schemes tend to protect compliant agents while bad actors continue unchanged.

Perth sits somewhere between London's patchwork and Vancouver's hard mandate. PropTrack, the data arm of REA Group headquartered in Richmond, Victoria, began rolling out an image-similarity detection system across its Australian platforms in late 2025. The tool uses perceptual hashing to identify near-identical images within the same postcode cluster, then flags them for manual review. As of June 2026, PropTrack confirmed the system is live across Western Australia, but the review process still relies on human moderators rather than automatic delisting. The City of Vincent and the Town of Victoria Park — two inner-Perth councils that have been early adopters of digital planning transparency tools — have separately asked the Department of Planning, Lands and Heritage to consider image-verification standards as part of the state's broader housing data reform agenda.

What the Numbers Actually Show

A 2025 audit by the Australian Competition and Consumer Commission found that misleading or deceptive property imagery was among the top three complaint categories for real estate advertising nationally, though the ACCC did not publish a state-by-state breakdown in that report. Within WA, Consumer Protection received 214 property advertising complaints in the 12 months to March 2026, a figure the agency published in its quarterly report. Not all of those involved duplicate images specifically, but the trend line has been upward for three consecutive years.

For buyers navigating suburbs like Baldivis and Alkimos — where master-planned estates are expanding rapidly under the Metronet-driven corridor — the practical stakes are clear. A render recycled from a Jindalee project appearing on a Baldivis listing has happened often enough that some buyer's agents now routinely run reverse image searches before advising clients to make offers.

The state government has not yet announced dedicated legislation targeting duplicate listing imagery, but the Department of Energy, Mines, Industry Regulation and Safety is understood to be reviewing the Consumer Protection complaint data ahead of a broader property advertising reform package expected later in 2026. Buyers working in high-turnover markets right now should request a statutory rates notice and a georeferenced photograph — one that embeds GPS coordinates in the image metadata — from any agent before committing to an inspection. It is a simple ask, and most reputable agencies in the Perth metropolitan area will comply without hesitation.