How Central Coast Council's digital records mess became a housing headache years in the making

Central Coast Council is working through a backlog of duplicate and incorrectly assigned property images inside its development application and land information systems, a problem that traces back to the chaotic data migration carried out during the forced amalgamation of Gosford City Council and Wyong Shire Council in May 2016. The issue, which affects how planning officers cross-reference site conditions during DA assessments, has quietly slowed decisions on residential projects at a moment when the Central Coast is under mounting pressure to deliver new housing stock.

The timing matters. NSW is in the middle of a state-mandated housing push, and Central Coast Council — still rebuilding its reputation and operational capability after the administration period that ran from October 2020 to May 2022 — is trying to demonstrate it can process development applications efficiently. Any friction inside the council's internal systems feeds directly into that performance record.

A problem born from amalgamation

When the Office of Local Government merged Gosford and Wyong into a single entity almost a decade ago, the two councils were running different property information platforms with different image file-naming conventions. Records staff at the Gosford Administration Building on Donnison Street and the former Wyong Council chambers on Hely Street each managed their own photo libraries, tagged to different cadastral identifiers. When those libraries were consolidated, thousands of images were matched to the wrong lot and deposited plan numbers — or duplicated across multiple property records entirely.

The council moved to its current integrated system in stages between 2017 and 2019, but the underlying data quality problems were carried across rather than corrected. Planning officers working on DAs in suburbs like Woy Woy, Tuggerah, and The Entrance began flagging instances where site photographs attached to a property record showed a different street entirely. In some cases, aerial imagery captured before the amalgamation had been tagged to the wrong local government area altogether.

Central Coast Council entered administration in October 2020 after a financial crisis that revealed a $565 million deficit, according to the inquiry findings published at the time. That administration period, which lasted until May 2022, consumed the organisation's bandwidth. A systematic audit of the image database was not completed before elected councillors returned to chambers.

What the duplication problem actually means for residents

For an owner-builder in Terrigal wanting to extend a dwelling, or a developer lodging a multi-unit proposal near Gosford Station on Mann Street, the practical effect is delay. When a planning officer pulls up a property record and the attached site photos show someone else's house, they either halt the assessment to manually verify the imagery or proceed on incomplete information. Neither outcome is good.

The council relaunched its online DA tracker through the NSW Planning Portal, and all new applications since mid-2023 are subject to updated image-upload protocols. But legacy records — properties that already had files in the old system — were not systematically cleaned at the same time. The council has been allocating staff resources to a progressive replacement program, working suburb by suburb through the older parts of the Gosford and Wyong local government areas.

Properties in the older residential belts around East Gosford and Wyong township are understood to contain the highest concentration of the affected records, given those areas had the most established pre-amalgamation datasets. More recently developed precincts around Warnervale and the Tudibaring Heights corridor, which generated most of their records post-2016, have a far lower error rate.

For residents and developers with active or pending applications, the most direct step is to contact Central Coast Council's Development Enquiries team at the Gosford office on Donnison Street and ask whether the property record has been reviewed under the image replacement program. If a DA has been sitting without assessment movement for more than 60 days, requesting a file status check is a reasonable next step. The council's Planning Portal also allows applicants to upload their own current site photographs as supporting documents, which gives assessing officers a verified reference point regardless of what the legacy database contains.