Duplicate Image Replacement: What Officials, Experts and Key Figures Are Saying

A quiet but increasingly pointed debate is unfolding across the Illawarra about how public institutions manage, replace and audit duplicate images in digital archives, planning portals and community records — and whether existing policies are up to the task. The conversation has sharpened in recent months as Wollongong City Council, the University of Wollongong and several Port Kembla-area development bodies field growing questions about the integrity of visual documentation in their public-facing systems.

The timing is not incidental. NSW's planning reform agenda, which has accelerated housing and industrial rezoning across the Illawarra Shoalhaven region, has pushed more documentation online. When duplicate images appear in development applications — whether through scanning errors, database merges or deliberate substitution — the downstream consequences for decision-makers and the public can be significant. A duplicated image in a heritage impact statement, for instance, can misrepresent the physical condition of a Crown Street terrace or a Fairy Meadow bungalow and send an assessment in the wrong direction.

Institutions on the front foot — or trying to be

Wollongong City Council's planning and environment directorate has been among the bodies examining its document management workflows most closely, according to public meeting agendas tabled at the Wollongong Civic Centre on Crown Street earlier this year. Council representatives have acknowledged in forum settings that the migration of legacy paper files into the NSW Planning Portal created conditions where duplicate imagery could enter the public record without a consistent flagging or replacement protocol.

The University of Wollongong's library and digital humanities units have also entered the conversation. The UOW library, based on the Northfields Avenue campus, runs several regional digitisation projects in partnership with Illawarra collections, including material related to the industrial history of Port Kembla. Archivists working on those collections have noted that duplicate image detection software — widely available since at least 2022 — has not been uniformly adopted across partner institutions. The gap between what technology can now do and what organisations actually deploy is one of the central tensions the debate keeps returning to.

BlueScope Steel, whose Port Kembla steelworks sit at the centre of the region's green transition, manages extensive environmental and operational photographic records required under its licence conditions. Replacing or flagging duplicate imagery in compliance documentation is not merely an administrative matter for BlueScope — it has direct relevance to regulatory submissions made to the NSW Environment Protection Authority. Representatives from the steelworks have participated in Illawarra industry forums where data governance, including image management, has been on the agenda.

What the evidence shows — and what comes next

A 2024 survey by the NSW State Archives and Records Authority found that roughly 34 percent of local government bodies across the state had no documented policy specifically covering duplicate digital images in planning or environmental records. That figure, drawn from a sample of 58 councils, underscores the scale of the gap practitioners in Wollongong have been pointing to.

At the community level, the stakes are visible in places like Keiraville and Gwynneville, where heritage overlays mean that development applications routinely include photographic annexures. Residents and objectors who rely on those images to assess proposed changes to streetscapes need confidence that what they are looking at is the correct, current photograph — not a version accidentally or deliberately substituted from another property or an earlier date.

Several paths forward are under active discussion. The Illawarra Shoalhaven Joint Organisation, which coordinates strategic planning across the region's four councils, is understood to be considering a shared framework for image authentication in planning documents. The University of Wollongong's School of Computing and Information Technology has the technical expertise to support such a framework, and informal conversations between the two bodies have been noted in publicly available meeting summaries.

For anyone lodging or responding to a development application through the NSW Planning Portal in the coming months, the practical advice from planning professionals active in the Wollongong market is straightforward: cross-check every image against the address metadata in the document, note the file creation date, and raise any discrepancy formally in writing before a determination is made. Once an approval issues, substituted imagery becomes significantly harder to contest.