How Central Coast Council's Image Problem Became a Planning Headache: The Road to Duplicate Image Replacement

Central Coast Council is undertaking a systematic audit and replacement of thousands of duplicate digital images embedded in its planning and property record systems — a housekeeping exercise that sounds routine but has direct consequences for development applications, flood-mapping updates, and the Gosford CBD renewal program that residents have been waiting on for years.

The problem didn't appear overnight. It is the cumulative result of three separate council amalgamations, two IT platform migrations, and an administration period that ran from October 2020 through to May 2022, during which day-to-day records management was deprioritised while administrators focused on stabilising a budget that had blown out by more than $100 million. When the elected council was restored, staff inherited digital asset libraries where the same site photograph, cadastral map, or flood overlay had been uploaded multiple times under different file names, sometimes attached to the wrong parcel entirely.

Why the Amalgamation Era Left a Messy Digital Trail

The 2016 merger of Gosford City Council and Wyong Shire Council created a single local government area covering roughly 1,800 square kilometres from Patonga in the south to Lake Munmorah in the north. Both predecessor councils ran different document management systems. Gosford used Objective ECM; Wyong ran a legacy system built around Technology One. Neither library was fully decommissioned before records were migrated into the merged entity's unified environment, and the result was duplication on an industrial scale across files held at the Council's administration building on Mann Street, Gosford, and the former Wyong Shire offices on Hely Street, Wyong.

The administration period compounded the issue. Between late 2020 and mid-2022, a succession of administrators — appointed by the NSW Government after Council failed to meet its financial obligations — approved a reduced capital works program and deferred several IT improvement projects. The duplicate image problem sat unresolved. By the time the elected council returned in May 2022, the backlog of unresolved digital records spanned tens of thousands of files tied to development applications, infrastructure asset registers, and environmental overlays.

This matters now because Gosford CBD renewal is accelerating. The Gosford Activation Precinct, which covers the blocks between Mann Street and the Gosford train station on Donnison Street, is at the centre of several concurrent development applications. Planners and certifiers working on those DAs rely on accurate site images and mapping overlays to assess height limits, flood risk, and heritage constraints. A duplicate or mismatched image attached to the wrong lot can trigger a request for further information, adding weeks or months to an already slow approval pipeline. The Central Coast's median house price sat at approximately $880,000 in the March 2026 quarter, according to CoreLogic data, and delays to apartment supply in the Gosford corridor do nothing to ease pressure on that figure.

What the Audit Involves and What Comes Next

Council's records management team, working out of the Mann Street administration centre, began a structured duplicate image replacement program in the first quarter of 2026. The process involves cross-referencing images against lot and deposited plan numbers in the NSW Land Registry, flagging duplicates, and either removing redundant files or replacing mislabelled images with verified originals sourced from Council's geographic information system and from NSW Planning's ePlanning platform.

The Gosford activation area and the Warnervale employment precinct to the north are being treated as priority zones, given the volume of active development applications in both locations. Council has also flagged that flood overlay images — critical for properties along the Narara Creek corridor and around Tuggerah Lakes — are being individually verified against the most recent flood modelling data, which was updated following the major rain events of February and March 2022.

For residents and developers with live applications in the system, Council's development inquiry counter at 2 Hely Street, Wyong and the Mann Street office can confirm whether a specific parcel's image record has been cleared. The full audit is scheduled for completion by the end of the September 2026 quarter. Applications lodged after that date are expected to draw on a clean, deduplicated image library — a small but consequential step for a council still rebuilding confidence after one of the most turbulent periods in its short history.