Sydney Councils and Property Platforms Scramble to Clean Up Duplicate Listing Images This Week

Property data managers across Greater Sydney spent much of this week hunting down thousands of duplicate and incorrectly assigned images embedded in real estate listings, council development applications, and NSW Planning Portal submissions — a problem that has quietly compounded through two years of record-high listing volumes and accelerated digital migration.

The issue surfaced publicly after several major listings on Domain and REA Group's realestate.com.au displayed mismatched interior photographs — images from one Surry Hills terrace appearing on a Penrith townhouse listing, and floorplan graphics from a Parramatta apartment development duplicated across at least a dozen separate DA submissions lodged with Cumberland Council. The errors were live for varying periods before being flagged by agents and buyers this week.

Why It Matters More Than a Technical Glitch

This is not just a minor database housekeeping issue. In a market where Sydney's median house price remains above $1.4 million — according to CoreLogic's most recent quarterly data — buyers are making initial decisions based almost entirely on digital imagery before setting foot in a property. A duplicate or swapped image can misrepresent square footage, condition, and aspect in ways that influence offers, valuations, and ultimately finance approvals.

The NSW Planning Portal, which processes DA lodgements for all 128 NSW councils, uses an automated image-ingestion system introduced in late 2023 as part of the state government's digital planning reform agenda. That system lacks a native deduplication layer — meaning identical image files uploaded by different applicants, or uploaded twice by the same applicant, are stored and displayed without cross-referencing. Councils including Canterbury-Bankstown and the City of Sydney have been managing the downstream consequences through manual review processes that are not resourced for current volumes.

The timing is particularly pointed given NSW Labor's housing reform push. The Minns government has staked significant political capital on accelerating planning approvals to address a supply shortfall estimated at tens of thousands of dwellings across the state. Any credibility problem with the Planning Portal's data integrity cuts against that agenda at a moment when the government can least afford it.

What's Happening on the Ground This Week

REA Group confirmed on Thursday it had identified and rectified a batch of duplicate image assignments affecting listings in its New South Wales inventory, though it did not disclose the precise number of affected records. Domain's media team said an internal review was underway. Neither company provided a timeline for completing those reviews.

In Western Sydney, where construction activity has concentrated around the Bradfield City Centre near the Western Sydney International Airport corridor and the Homebush Bay urban renewal precinct, property managers at several project marketing firms said their teams had spent the better part of Wednesday manually re-uploading correctly labelled photographs to correct errors introduced when assets were batch-transferred between content management systems. One Parramatta-based firm described the process as taking approximately 14 staff hours to address around 200 affected listings.

The NSW Land Registry Services, which sits separately from the Planning Portal, said its own digital records — including deposited plans and strata schemes — had not been affected by the same image duplication pattern. That distinction matters for conveyancers and solicitors working in suburbs like Strathfield and Hurstville, where strata title transactions are heavy and documentation chains are scrutinised closely.

Industry body REINSW has previously called for a unified image metadata standard across NSW government property databases, a recommendation that has not yet been adopted.

For buyers and sellers currently active in the market, agents are advising that any property viewed online should be cross-checked against the council's own DA tracking system — accessible via each local council's website — before an offer is made. If a listing image appears generic or inconsistent with the property description, contacting the listing agent directly to request a verified image set remains the most reliable safeguard. The NSW Fair Trading complaints line at 13 32 20 can be used where misrepresentation is suspected. The broader deduplication fix across the Planning Portal is not expected before the next scheduled system update, which has been flagged for the third quarter of 2026.