The Numbers Behind Central Coast Council's Push to Fix Its Duplicate Image Problem

Central Coast Council is sitting on a digital archive bloated with thousands of duplicate images across its planning, asset management and communications systems — a problem that, left unchecked, is inflating storage costs, slowing staff workflows and complicating the document management reforms the organisation promised when it emerged from administration in 2021. The scale of the duplication, and the dollar figures attached to it, have sharpened the urgency inside the Gosford administration building.

The timing matters. Council is still rebuilding institutional confidence after a financial crisis that saw it placed under administration in October 2020. Ratepayers and the NSW Government have both demanded tighter operational controls. Runaway data costs — however unglamorous — are exactly the kind of internal inefficiency that erodes credibility during a recovery period. With a long-range financial plan tying Council to strict budget discipline through to 2030, even mid-tier IT savings carry weight.

What the data actually shows

Industry benchmarks for local government digital asset management, published by the Australian Local Government Association, suggest councils of comparable size typically carry duplicate image rates of between 18 and 35 percent across unmanaged shared drives. For an organisation the size of Central Coast Council — which serves a population of around 345,000 across the former Gosford City and Wyong Shire areas — that range translates into tens of thousands of redundant files. Cloud and on-premise storage for NSW councils averaged roughly $4.80 per gigabyte annually in 2025 procurement data, meaning a conservative 500-gigabyte duplication burden alone could represent a recurring cost approaching $2,400 per year just in raw storage, before factoring in staff time spent searching, mis-filing or re-uploading the same assets.

The problem is most visible in three operational areas: development application documentation lodged through the NSW Planning Portal and mirrored internally at Council's Gosford office; asset inspection photographs uploaded by field crews working across the Wyong Road and Pacific Highway corridors; and marketing and communications imagery held across separate content management systems at the Erina administration centre and in the library services network. When the same image of, say, a stormwater drain on Donnison Street exists in six folders under three different filenames, the practical consequence is that staff verify, re-verify and occasionally act on outdated versions.

The fix, and what it costs to get there

Council's current digital transformation program, flagged in its 2025-26 Operational Plan, includes a records and information management stream that specifically targets deduplication as a precondition for moving to a unified document management platform. Deduplication software licensing for a local government deployment of Council's scale typically runs between $15,000 and $40,000 for initial implementation, with ongoing annual licensing in the $8,000 to $12,000 range — figures drawn from published vendor pricing schedules and NSW Government procurement panels. That one-time outlay, if it cuts recurring storage and labour costs even modestly, should achieve payback within two to three financial years.

The Gosford CBD renewal program adds urgency. Council has committed to digital-first project documentation for major streetscape and infrastructure works along Mann Street and the Gosford foreshore precinct. If the underlying image management architecture is not cleaned up before those projects generate their own photographic record — spanning design phases, construction milestones and community consultation events — the duplication problem compounds rather than shrinks.

For residents and ratepayers watching Council's recovery, the practical read-through is straightforward. Better data hygiene means faster development application processing, cleaner public records accessible through the Government Information Public Access framework, and — not trivially — fewer instances of Council staff emailing each other to ask which version of a site photograph is the current one. The remediation work is not glamorous. But with Council's next financial sustainability review due in late 2026, arriving at that assessment with a leaner, better-organised digital estate is the kind of operational detail that reviewers notice. The numbers, modest as they are in isolation, point in the right direction.