Duplicate Images on Council Documents Are Costing Central Coast Residents More Than They Realise

When Gosford residents lodged objections to a development application on Mann Street last year, several submitted the wrong site photographs — because the council's online portal had displayed a duplicated image from an entirely different property. It is a small, unglamorous problem. It is also one that keeps happening, and the consequences for ordinary people on the Central Coast are adding up.

Duplicate image replacement — the process of identifying and removing incorrectly repeated or misfiled photographs and plans from planning portals and digital property records — sits at the intersection of two pressures that are hitting the region simultaneously. Central Coast Council is still rebuilding its administrative capability after emerging from state government administration in 2023. At the same time, the volume of development applications in the Gosford CBD renewal corridor and along the Woy Woy Road growth spine has risen sharply as Sydney commuters continue driving demand for new housing stock.

Why Bad Data Costs Real Money

For a first-home buyer paying the Central Coast median house price — which, according to Domain's March 2026 quarterly report, sat at approximately $870,000 for the broader region — submitting a planning objection or pre-purchase due-diligence query based on a misfiled site image is not a minor inconvenience. Conveyancing delays alone can cost several hundred dollars per day in bridging finance. Solicitors in Gosford and Erina have noted anecdotally that image-related discrepancies in DA documentation are among the more common reasons clients request document re-checks, though no official tally is maintained publicly.

Central Coast Council's online Development Application Tracker, accessible through the council's main Gosford-based web portal, relies on automated document uploads from applicants. There is no mandatory human review step that catches duplicate images before a file goes live. The NSW Planning Portal, which feeds into the state's ePlanning system under the Department of Planning, Housing and Infrastructure, operates under similar constraints: once a document package is submitted, image-level duplication is flagged only if a submitter or council officer manually notices it.

The practical upshot is that a photograph of a property on Dane Drive, Narara, can sit inside a DA file nominally belonging to an address in Wamberal — and nobody is automatically told.

What Needs to Happen, and When

The state government's broader digital planning reforms, announced under the Housing and Productivity Contribution framework in 2024, included commitments to improve data integrity across council portals, with an implementation timeline running through to mid-2027. For Central Coast, that timetable matters because the council's own Digital Services Improvement Program — referenced in its 2025-26 Operational Plan adopted at the Wyong chambers in September 2025 — identified document management as a priority upgrade area.

Residents and property professionals dealing with DA submissions right now have a few practical steps available. Downloading the full document package from the council's Gosford administration building at 2 Hely Street, rather than relying solely on online previews, is the most reliable way to catch image mismatches before lodging a formal response. Gosford's Community Engagement Hub on Mann Street, which assists residents with council process queries, can also guide people through requesting a corrected document upload if an error is identified.

The broader point is straightforward. Good planning decisions require accurate information. The Central Coast is asking its community to engage meaningfully with a CBD renewal program, a housing densification agenda around Gosford and Tuggerah, and a climate resilience plan that touches flood-prone suburbs from Umina Beach to Toukley. None of that engagement works if the underlying documents cannot be trusted at the most basic level — down to whether the photograph in a DA file actually shows the site being discussed.

Council has not publicly set a date for completing its document management upgrades. Residents with questions about a specific DA can contact the council's Planning and Environment directorate directly through the Hely Street office or the online portal, quoting the DA reference number to request a file integrity check.