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

The ACT government's digital asset registers contain a significant and growing problem: duplicate images embedded across multiple departmental systems, heritage databases, and public-facing portals are costing time, storage budget, and — in some cases — creating genuine legal uncertainty over which version of a record is authoritative. The problem has moved quietly up the priority list inside the ACT's Digital, Data and Technology Solutions directorate over the past six months, and decisions made in the next few weeks will shape how Canberrans interact with government services well into the next decade.

The issue matters right now because the ACT government is mid-stream in a broader digital modernisation push that includes integrating legacy systems inherited from paper-era agencies. Consolidation of land title images, heritage photography held at the Nolan Collection in Canberra's inner north, and planning records tied to the Gungahlin and Belconnen growth corridors has pushed the problem into sharp relief. When two versions of the same cadastral image sit in two different systems with two different metadata tags, a planner in Dickson and a conveyancer in Civic can — and do — pull conflicting data.

What the Duplication Actually Looks Like

The Australian National University's digital library team faced a version of this problem in 2024 when it began deduplicating image assets held across its three main repository platforms. The exercise, which took roughly eight months and covered an archive of more than 400,000 individual files, revealed that around 18 percent of stored images had at least one functional duplicate elsewhere in the system. The University of Canberra's library faced comparable challenges when it migrated collections to a new system in late 2025. Neither institution has publicly released final cost figures for those remediation exercises.

For the ACT government, the stakes are financial as well as administrative. Cloud storage for high-resolution image files is not cheap — mid-tier government contracts for object storage in Australian data centres have been running at roughly $23 per terabyte per month for compliant jurisdictions, according to publicly available pricing benchmarks for the sector. Duplicate holdings at scale translate directly into budget bleed inside the Territory Records Office and Access Canberra's document management infrastructure. The Territory's 2025-26 budget allocated $4.1 million to digital records modernisation, though that envelope covers a range of projects beyond image deduplication alone.

Specific duplication clusters have been identified in three areas: development application imagery tied to new estates along Gungahlin Drive, heritage photography catalogued under the ACT Heritage Register, and residential property images flowing through the ACT Revenue Office's land valuation workflows. Each cluster involves different agencies, different retention rules under the Territory Records Act 2002, and — critically — different definitions of which copy counts as the legal original.

The Decisions That Will Define the Outcome

Three choices now sit with senior officials. First, the directorate must decide whether to run a centralised deduplication sweep using automated hash-matching tools, or to require individual agencies to audit and certify their own holdings. The centralised approach is faster but carries the risk of incorrectly flagging deliberate version-controlled records as duplicates. The agency-by-agency model is slower — estimates from comparable interstate projects suggest at least 14 months — but preserves local knowledge about why a second copy exists.

Second, procurement decisions are converging. The government's standing panel for digital services expires in September 2026, meaning any contract for deduplication tooling or consulting support needs to move quickly or wait until a new panel is established — a delay that could push active remediation into mid-2027.

Third, and most consequential for ordinary Canberrans, is whether Access Canberra's public-facing property search portal at Civic's Dickson Service Centre network gets a visible fix before the spring property market heats up. Buyers in Belconnen and Tuggeranong relying on that portal to cross-check land imagery before auction have reported inconsistencies, though the government has not made any formal public statement about the scope of those discrepancies.

The next formal review point is a directorate briefing scheduled for late July 2026. What comes out of that meeting — a procurement path, an agency mandate, or another round of scoping — will determine whether this is resolved inside the current term of the ACT government or handed to whoever wins the next election.