Perth's Duplicate Image Problem: What Happens Next and the Key Decisions Ahead

Western Australian government agencies and local councils are confronting a growing backlog of duplicate and outdated imagery embedded across public-facing digital systems, from planning portals to heritage registers, with decisions on how to manage the cleanup expected to land before the end of the 2026 financial year. The problem is not cosmetic. Duplicate images in property records, development applications and infrastructure databases are causing processing delays and, in some cases, triggering errors in automated approval workflows.

The pressure has sharpened because of two colliding forces. Metronet's rapid expansion — with stations opening or under construction from Yanchep to Byford — has flooded the Department of Planning, Lands and Heritage with thousands of new development application files, many carrying image attachments that have been submitted multiple times by different parties. Simultaneously, the WA Government's ongoing push to digitise land title and heritage records has exposed just how large the duplicate-image problem already was in legacy systems.

Where the Bottlenecks Are Appearing

The City of Stirling and the City of Wanneroo, both among Perth's largest local governments by land area, have each been managing high volumes of development applications tied to new housing estates and AUKUS-related contractor accommodation near HMAS Stirling on Garden Island. Planning officers at those councils have flagged internally that image deduplication in their document management systems is not keeping pace with submission volumes. Neither council has publicly detailed the scale of the issue as of July 4, 2026.

Landgate, the state's land information authority based in Midland, holds the authoritative property image registry for Western Australia. Its digital transformation program, running since 2023, has been working to consolidate image records across legacy databases. The Midland facility processes title imagery for the entire state, meaning a bottleneck there ripples outward to conveyancers on St Georges Terrace and settlement agents operating out of suburban offices from Fremantle to Joondalup.

The practical consequence for homebuyers and developers is measurable. Industry groups have pointed to settlement delays as one downstream effect of document-management backlogs, though the specific share attributable to duplicate imagery rather than other processing issues has not been independently verified and no official breakdown has been published.

The Decisions That Will Shape the Outcome

Three decisions are now sitting with state and local decision-makers. First, whether to procure a centralised deduplication tool that agencies can use uniformly, or allow each body to manage its own solution — a question the Department of Finance's Office of Digital Government was understood to be examining as part of a broader ICT review earlier this year. Second, whether to mandate image-format standards for all new development application submissions through the state's PlanningWA portal, which would prevent new duplicates from entering the system even before legacy records are cleaned up. Third, how to allocate the cost — capital investment in software tools versus ongoing staff time — at a moment when the state budget is carrying a surplus but agencies are also competing for Treasury allocations tied to defence infrastructure and housing.

The City of Perth's own digital records team, operating from the Council House building on Hay Street, has been piloting an automated flagging system for duplicate attachments in its ECM platform since late 2025. That pilot is due to report findings to the council's administration committee in the third quarter of 2026. If the results are positive, the model could be offered as a reference case for other councils and state agencies looking to move quickly without waiting for a top-down mandate.

For property owners, developers and settlement agents, the immediate practical step is straightforward: when lodging any application or document through a state or council portal before the deduplication work is complete, submitting a single clearly labelled image file rather than multiple versions of the same photograph reduces the chance of a processing flag. The deeper fix, though, requires the agencies themselves to make the calls that are now overdue.