Wollongong's Duplicate Image Problem: What Happens Next and the Key Decisions Ahead

Wollongong City Council is facing a fork in the road over how to manage a sprawling backlog of duplicate digital imagery embedded across its asset management and planning systems, with internal teams now under pressure to decide whether to invest in automated deduplication software or rebuild the cataloguing process from scratch before the next infrastructure audit cycle begins in late 2026.

The issue matters now because the council's asset records underpin funding applications to state programs including the Illawarra Shoalhaven Regional Development Fund, where inaccurate or duplicated documentation can delay approval timelines and, in some cases, trigger resubmissions that cost applicants weeks. With Port Kembla's renewable energy infrastructure buildout accelerating and BlueScope Steel's green transition generating new site documentation requirements, clean data is no longer a back-office nicety — it directly affects the pace of planning approvals and grant disbursements across the region.

The problem surfaced during a routine audit of Wollongong City Council's geographic information systems unit earlier this year. Staff identified that records tied to projects along Crown Street and the northern foreshore precinct near WIN Entertainment Centre contained duplicated aerial and ground-level imagery, some dating back to the 2019 coastal hazard study. The University of Wollongong's SMART Infrastructure Facility, which has a standing partnership with the council on data systems, flagged the issue in a review of the council's digital twin pilot program.

The Options on the Table

Three paths are now being assessed. The first is a licensed automated deduplication platform, with market quotes for systems capable of handling municipal-scale image libraries running between $85,000 and $140,000 annually depending on storage volume and integration requirements. The second is a manual audit using temporary contract staff — an approach that procurement estimates put at roughly six months of work and upward of $60,000 in labour costs. The third option, which some within the council's digital services branch reportedly favour, is a phased rebuild of the cataloguing taxonomy itself, starting with high-priority zones such as the Port Kembla industrial precinct and the Figtree–Unanderra growth corridor.

None of these options is cheap, and none avoids disruption. The Port Kembla Renewable Energy Zone is particularly sensitive. Documentation tied to transmission infrastructure and foreshore access assessments near Springhill Road has already been flagged as containing layered duplicates from multiple contractor submissions, each using different file-naming conventions. That inconsistency has created indexing conflicts that planning staff say complicate cross-referencing against the NSW Government's Spatial Digital Twin, a state platform the Minns government has been expanding since 2024.

What the Next 90 Days Look Like

A briefing paper is expected before the council's August ordinary meeting, which will set the parameters for a formal procurement decision. If automated software is selected, implementation would likely not begin until the December quarter, putting pressure on planning teams to manage the duplicate backlog manually through spring — typically the busiest period for development application lodgements in the Wollongong local government area.

For developers and community groups with applications in the pipeline, particularly those tied to the Illawarra Shoalhaven Regional Development Fund's next funding round, the practical advice is straightforward: ensure all supporting imagery and site documentation submitted to council uses consistent file formats and clearly labelled metadata. Staff from the council's development services counter at the Burelli Street civic centre have been advising applicants on this point since May.

The broader stakes extend beyond bureaucratic tidiness. BlueScope's ongoing environmental and planning submissions for the Port Kembla steelworks transition involve large volumes of site photography and aerial mapping. If council's receiving systems cannot reliably distinguish between current and superseded imagery, the risk of errors feeding into planning instruments grows. Getting the deduplication decision right — and getting it made quickly — is what the next 90 days are really about.