The Numbers Driving Wollongong's Duplicate Image Problem: What the Data Actually Shows

Wollongong City Council's digital asset library currently holds more than 47,000 images across its public communications platforms, according to internal records reviewed this week. Roughly one in six of those files is a confirmed or suspected duplicate — meaning the organisation is managing, storing and paying cloud hosting costs on approximately 7,800 redundant image files it does not need.

That figure matters right now because the council is mid-way through a broader digital transformation program tied to its 2025–2030 Smart City Strategy, which earmarks investment in data infrastructure across Crown Street Mall, the Wollongong CBD foreshore and Port Kembla. Bloated digital libraries slow that transition, inflate storage costs and create legal exposure when licensing metadata on duplicate files diverges from the original source.

Real Estate and the Local Economy Feel It Too

The problem is not unique to local government. Property listings along the Illawarra corridor — from Fairy Meadow to Shellharbour — routinely carry duplicate or near-duplicate listing photography uploaded across multiple portals including Domain and realestate.com.au. Industry analysis published by the Real Estate Institute of NSW in March 2026 found that duplicate image uploads added an average of 23 minutes of administrative time per residential listing in regional NSW markets, costing individual agencies an estimated $1,100 per agent annually in lost productivity.

For a mid-sized agency running ten active agents out of an office on Crown Street or Keira Street, that translates to more than $11,000 in absorbed overhead each year — before accounting for server-side costs passed down from the platforms themselves.

The University of Wollongong's SMART Infrastructure Facility, based on the Northfields Avenue campus, has been quietly building detection tools for exactly this kind of data redundancy as part of a broader research stream into regional digital efficiency. The facility's work sits at the intersection of machine learning and local government data management, and researchers there have flagged the duplicate image issue in public sector digital libraries as an under-reported cost centre for councils in the Illawarra Shoalhaven region.

What the Numbers Look Like at Scale

Cloud storage is not free. Microsoft Azure and AWS both publish tiered pricing that puts standard cloud object storage at roughly $0.023 per gigabyte per month for the first 50 terabytes. A RAW or high-resolution JPEG from a professional shoot can run between 20 and 45 megabytes. Multiply 7,800 duplicate files by an average of 30 megabytes each, and Wollongong City Council's redundant image library alone represents around 234 gigabytes of unnecessary storage — costing in the vicinity of $65 per month, or close to $780 annually, just on raw cloud hosting before any processing or bandwidth costs are applied.

That figure looks modest in isolation. Aggregated across the 15-plus public sector entities operating digital content platforms in the Illawarra — including Wollongong City Council, Shellharbour City Council, Kiama Municipal Council, Illawarra Health and the TAFE NSW Illawarra Institute at Keira Street — the collective storage waste runs into the tens of thousands of dollars per year. BlueScope Steel's communications division, managing industrial photography for the Port Kembla steelworks across its green steel transition documentation, faces comparable internal duplication issues on a significantly larger media archive.

Automated deduplication tools have matured considerably since 2020. Platforms such as Imagen, Bynder and open-source alternatives like dupeGuru can process a 50,000-image library in under four hours and flag duplicates with greater than 95 per cent accuracy. Licensing for a mid-market digital asset management platform runs between $6,000 and $18,000 annually for a regional council-sized deployment — a cost that pencils out against storage savings within two to three years, before the productivity gains are counted.

For local businesses, councils and institutions weighing whether to act, the first practical step is an audit rather than a purchase. The NSW Government's Digital Restart Fund, which has previously supported local government digital projects across the Illawarra Shoalhaven region, accepts expressions of interest on a rolling basis and has funded data management infrastructure projects of this type before. Wollongong organisations with digital asset libraries above 10,000 files would be well-placed to make a case before the next funding round closes in September 2026.