Perth's Duplicate Image Problem: The Numbers Exposing a Digital Filing Crisis Across WA Government and Business

Duplicate images are costing Western Australian organisations millions of dollars in wasted cloud storage and staff hours, with new industry benchmarks suggesting the average mid-sized government agency carries between 30 and 45 per cent redundant files across its digital asset libraries. For a state running infrastructure projects of the scale of the $5.98 billion Metronet rail expansion, that is not a trivial problem.

The issue has landed on IT desks across Perth at a moment when storage costs are rising and accountability for public money is tighter than usual. WA's last state budget recorded a surplus of $3.3 billion, but Treasury has signalled a tightening cycle ahead — meaning departments are under pressure to find operational savings wherever they exist. Digital asset management is now firmly on that list.

What the Numbers Actually Show

Industry analysis from data governance consultancies operating across Australia puts the cost of storing a single terabyte in enterprise cloud environments at roughly $25 to $40 per month, depending on the provider tier. A government agency holding 200 terabytes of photographic and visual assets — not unusual for a transport or planning department — could theoretically shed 60 to 90 terabytes by eliminating confirmed duplicates, translating to savings of up to $3,600 per month in storage costs alone.

The City of Stirling, which covers some of Perth's most densely administered suburbs from Innaloo to Balga, manages visual documentation across planning applications, infrastructure records and community communications. Organisations of that scale routinely accumulate duplicate imagery through multi-team uploads, contractor handovers and legacy system migrations. The same pattern applies at the Department of Transport's offices near Waterloo Crescent in East Perth, where project photography for rail corridor works has been generated by dozens of separate contractors since 2019.

Deduplication software vendors operating in the Australian market report that clients typically discover three to five copies of any given image file across their systems. In environments where large JPEG or RAW camera files average 25 megabytes each, even a collection of 100,000 images — modest for a transport infrastructure project — can carry 6 to 10 terabytes of pure duplication overhead before anyone runs a single audit tool.

Perth's Local Pressure Points

Two specific programs are sharpening the local focus. The AUKUS defence build-up centred on HMAS Stirling at Garden Island is generating substantial photographic and design documentation that flows through Commonwealth and state government channels simultaneously. When the same site survey images land in both a federal defence archive and a WA Department of Jobs, Tourism, Science and Innovation folder, deduplication becomes a cross-jurisdictional headache, not just a local IT task.

Metronet's project communications team, based in the Public Transport Authority's offices on Roe Street in Northbridge, has published thousands of construction progress images since the program's first sod-turning. Internal records management policies require retention of originals, but without systematic hash-checking — a process that identifies files by their unique digital fingerprint rather than filename — project libraries accumulate near-identical shots from different photographers on the same day, at the same location, at nearly identical exposure settings.

The practical cost is not just storage. Staff time spent searching bloated archives for a specific image from, say, the Yanchep rail extension corridor or the Morley-Ellenbrook line can run to 20 or 30 minutes per search when libraries are unrationalised. Across a team of 10 communications officers, that adds up to several hundred hours per year.

Organisations looking to address the problem in 2026 have three broad options: deploy automated deduplication software with perceptual hashing capabilities, which catches visually identical images even when file metadata differs; commission a manual audit using an external digital asset management firm; or restructure upload protocols so duplicates are caught at ingestion rather than cleaned up retrospectively. The third option is cheaper long-term but requires governance reform, not just a software purchase. For WA agencies heading into a tighter budget environment, the audit comes first — and the numbers, once they are on the table, tend to make the case for action on their own.