Central Coast Council's digital archive purge tackles thousands of duplicate images this week

Central Coast Council confirmed this week it is midway through a targeted cleanup of its digital records system, removing thousands of duplicate images that have accumulated across its planning, infrastructure and community services databases since the organisation emerged from state administration in 2021. The work, carried out by the council's internal information management team, is focused on the Authority records platform used to process development applications and asset inspections across the region.

The timing matters. Council is under sustained pressure to modernise its back-office systems after years of financial instability that followed the administration period under state-appointed administrator Rik Hart. Duplicate image files slow search times, inflate storage costs and create compliance headaches when documents need to be retrieved for court proceedings or NCAT hearings. With Gosford CBD renewal projects generating a surge in DA lodgements along Mann Street and the Kibble Park precinct, the volume of attached documents — including site photographs, engineering drawings and heritage images — has grown sharply since 2023.

What the cleanup involves

The process involves staff cross-referencing image files against a master register, flagging duplicates for deletion or archiving, and tagging surviving records with updated metadata. Council's records team is working through files tied to properties across the Gosford, Wyong and Tuggerah corridors. The Tuggerah Business Park and the Warnervale employment lands, both active development zones, have generated a particularly high volume of duplicate inspection photographs, according to council's published agenda papers from its June 24 ordinary meeting.

The cleanup is also connected to a broader migration toward council's cloud-based document management environment. Central Coast Council signed a contract with its current enterprise content management provider in late 2023 as part of the organisation's post-administration technology renewal program. Storage costs for local government records systems in NSW typically run between $80,000 and $200,000 annually for mid-to-large councils, depending on data volume — figures that can climb sharply when duplicate files are left unmanaged across multiple linked databases.

Residents lodging development applications through the NSW Planning Portal may notice slightly faster document upload confirmation times as the backend cleanup progresses, though council has not published a formal service-level target for the completion date.

Why local residents should care

For homeowners on the Central Coast — many of whom bought in suburbs like Woy Woy, Killarney Vale and Hamlyn Terrace precisely because property prices remain lower than Sydney's inner suburbs — any delays in DA processing translate directly into holding costs on construction loans. The median house price across the Central Coast local government area sat at approximately $850,000 as of the March 2026 quarter, according to NSW Valuer General data, making timely council processing a practical financial issue, not an abstract bureaucratic one.

The Gosford CBD renewal precinct, which includes the Leagues Club Field redevelopment site and the long-discussed revitalisation of Kibble Park's surrounds, has seen more than 40 development applications lodged in the six months to June 2026, based on figures published in council's monthly DA activity reports. Each of those files can contain dozens of image attachments. When duplicate files multiply unchecked, staff retrieving records for neighbour notification or rezoning assessments can end up working from outdated or mislabelled photographs.

Council's information management team is expected to complete the primary duplicate removal phase by the end of July, with a secondary audit of heritage property image files — particularly those tied to listings on the Central Coast Heritage Register — scheduled for the August-September period. Residents with active DAs who want to confirm their submitted images are correctly filed can contact council's customer service centre on Mann Street, Gosford, or check document status through the NSW Planning Portal using their application reference number.