Canberra Takes Aim at Duplicate Property Listings — But Other Cities Are Already Ahead

Property hunters scrolling through real estate listings on platforms like Domain and realestate.com.au have long complained about the same Braddon apartment appearing under three different agent names, each with subtly cropped or reordered photos. The ACT Office of Fair Trading confirmed this month it is reviewing its guidelines for property advertising image standards, a response to a steady stream of complaints from renters and buyers across Gungahlin and Belconnen who say duplicate or misleading listings are wasting their time and distorting their sense of what is actually available in the market.

The timing matters. Canberra's rental vacancy rate has remained stubbornly tight — industry trackers have placed it below one percent for much of 2025 and into 2026 — meaning every phantom or duplicated listing carries real consequences. A renter making decisions based on three listings that are actually one property is being systematically misled at one of the most stressful moments in their financial life. For a city whose workforce skews heavily toward the public service, where lease cycles often align with machinery-of-government reshuffles, the churn of renters actively searching at any given moment is unusually high.

What Canberra Is Actually Doing

The ACT Government's Access Canberra unit, which handles consumer protection functions, has been running a broader digital marketplace compliance program since early 2025. That program includes periodic audits of property listing platforms, though the specific criteria for identifying duplicate image use have not been publicly released. The Australian National University's 3A Institute, based in Acton, has separately been involved in developing AI-assisted image fingerprinting tools — technology that can detect when the same photograph has been cropped, filtered or reposted under a different listing identifier. Whether any of that research feeds directly into regulatory enforcement in the ACT remains unclear.

Local advocacy group Tenants' Union ACT, based on Giles Street in Kingston, has been documenting cases where the same internal photographs appear across multiple listings on popular platforms, sometimes with different listed prices. The organisation has pushed for mandatory unique listing identifiers tied to a property's street address, a reform that would make duplication immediately visible to any aggregator. No such requirement exists under current ACT tenancy or consumer law.

How Other Cities Compare

Singapore offers the clearest international benchmark. The Council for Estate Agencies there introduced a mandatory Property Information Form in 2021 requiring agents to submit a unique identifier for every listing, cross-referenced against the Urban Redevelopment Authority's address database. Duplicate image detection is automated at the point of submission, not after the fact. Agents who breach the rules face fines of up to SGD 75,000 under the Estate Agents Act.

Amsterdam's approach is different but instructive. The Netherlands' real estate federation, NVM, runs a centralised database called Funda through which the overwhelming majority of Dutch listings flow. Because all listings originate from one verified source, duplicate images are structurally impossible rather than merely prohibited. Geneva operates a similar model through the Swiss real estate platform Homegate, where cantonal property registration numbers are compulsory fields before a listing can go live.

By contrast, Australia's fragmented model — in which multiple competing platforms each hold their own databases with no mandatory cross-referencing — means duplicate detection depends almost entirely on platform self-policing. Domain Group and REA Group, the two dominant players in Canberra's market, both have internal flagging tools, but neither has publicly disclosed the detection rates or enforcement actions those tools produce.

For Canberrans actively searching for a home, practical steps exist right now. Cross-referencing a listing's photographs against Google Street View and the ACT's own Property Boundaries search tool (accessible through Access Canberra's website) can confirm whether an address matches what is shown. Searching a suburb on both major platforms simultaneously and comparing image sets manually — tedious, but effective — remains the most reliable check available until any formal regulatory reform arrives. The ACT Office of Fair Trading has indicated it expects to release updated guidance on property advertising standards before the end of the third quarter of 2026.