ACT Government's Duplicate Image Problem: The Key Decisions Now Facing Planners and Residents

The ACT Planning directorate is confronting a concrete administrative problem that has been quietly accumulating since the transition to a unified digital land register: thousands of duplicate images embedded across property files, development applications, and heritage records are creating retrieval errors, inflating storage costs, and slowing down the assessment of development applications at a time when Canberra's housing pipeline cannot afford further delays.

The timing matters. The ACT government is midway through a housing densification push centred on corridors like Flemington Road in Gungahlin and Belconnen's William Slim Drive precinct, where medium-density approvals are already queuing. Every week a duplicated cadastral image or outdated block boundary scan sits unresolved in the system, it risks being pulled into a new development application as source material — potentially sending assessors back to square one.

What the Backlog Looks Like on the Ground

The Access Canberra service centre on Challis Street in Dickson processes hundreds of land title and building approval requests monthly. Staff there, along with counterparts at the Environment, Planning and Sustainable Development Directorate's Macarthur Avenue offices in Lyneham, have been working with a register that inherited legacy scanned documents from the pre-2020 paper-based system. Industry groups including the Planning Institute of Australia's ACT chapter have flagged the issue in submissions to the directorate, though the government has not yet published a formal remediation timeline.

Australian National University's Research School of Computer Science, which has previously collaborated with ACT government agencies on data quality projects, has the technical capacity to assist with automated duplicate detection at scale. The University of Canberra's Health Research Institute building on Kirinari Street houses data governance researchers who have studied similar problems in health record digitisation — a parallel that planning officials have noted internally. Neither institution has announced a formal engagement with the directorate on this specific issue.

The scale of the problem is not trivial. A 2024 report from the Australian Bureau of Statistics on government digital service delivery found that state and territory land registries collectively held an estimated 12 to 18 percent redundancy rate in legacy-scanned document holdings — a figure that, if replicated in the ACT's own register, would represent tens of thousands of affected files given the territory's roughly 170,000 separate land parcels.

The Decisions That Will Define the Outcome

Three choices now sit with directorate leadership. First, whether to pursue an in-house automated deduplication run using existing IT contracts, or to procure a specialist vendor — a procurement process that, under ACT government rules for contracts above $200,000, would require open tender and could take four to six months to complete. Second, whether to freeze the affected portions of the register during remediation, which would slow DA processing in growth suburbs, or to run the clean-up in parallel with live operations and accept a period of elevated error risk. Third, whether the final audited register becomes a public-facing open dataset under the ACT's data sharing framework, which would allow real estate platforms, conveyancers, and researchers on Barry Drive at ANU direct API access rather than individual requests through Access Canberra.

The July sitting fortnight of the ACT Legislative Assembly — resuming on July 21 — is the next realistic window for a ministerial statement or estimates hearing question that could force a public answer on the timeline. The Planning and Urban Renewal committee has the remit to call the directorate to account, and at least two crossbench members have indicated interest in land data transparency as a component of broader housing reform scrutiny.

For Canberrans with active conveyancing underway, particularly buyers in Molonglo Valley's Whitlam suburb where new block releases have been brisk, the practical advice from conveyancers is to request a fresh title search dated within 14 days of settlement rather than relying on searches pulled earlier in the contract period. That single step adds roughly $35 to $50 in search fees but eliminates the risk of a duplicated or superseded document creating a settlement complication. The directorate, for its part, has until the August budget update to show it has a funded plan. The clock is running.