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

London's public sector is sitting on a digital filing cabinet stuffed with duplicates. From the Greater London Authority's internal comms databases to borough council planning portals, thousands of duplicate images — redundant photographs, repeated diagrams, cloned heritage records — are clogging systems, inflating storage costs and, according to digital governance specialists, creating real legal exposure around copyright and data accuracy.

The issue has sharpened in 2026 as Labour's Planning and Infrastructure Bill pushes councils to digitise their planning records faster. That acceleration has exposed a problem that had been building quietly for years: many boroughs uploaded the same images multiple times across different systems, and nobody has a clear mandate to clean them up.

What the Experts Are Saying

Digital asset management specialists working with public bodies have been flagging the problem for months. The core concern is not merely storage waste — though at current rates, enterprise cloud storage in the UK runs to roughly £18 to £25 per terabyte per month for public sector contracts, and duplicates can inflate holdings by 30 percent or more — but the downstream risk of officials making planning or heritage decisions based on mismatched or outdated visual records.

The Museum of London Archaeology, which digitised extensive excavation records as part of its transition ahead of the Smithfield move, has been cited internally within GLA circles as one organisation that dealt proactively with duplicate image sets before migrating to a new asset management platform. The process reportedly took the better part of six months and required dedicated resource that smaller councils simply do not have.

At the London Legacy Development Corporation, which oversees planning across the Queen Elizabeth Olympic Park area in Stratford, staff have been working through a digital estate review since late 2025. The LLDC declined to provide specifics on the scale of duplication found, but the review is ongoing and tied to broader efforts to align with the government's digital planning standards, which the Ministry of Housing, Communities and Local Government set out in updated guidance published in March 2026.

Boroughs in the Crosshairs

Tower Hamlets and Southwark are among the boroughs most frequently mentioned by digital governance consultants as facing the steepest challenge, largely because both have active regeneration pipelines and uploaded planning imagery across multiple legacy platforms before consolidating systems. Neither borough has made a public statement on duplicate remediation timelines.

The Local Government Association has noted in its 2026 digital services survey — published in April — that 61 percent of English councils report having no formal deduplication policy for visual and document assets. That gap is now drawing attention from Whitehall, where officials working on the digital planning portal rollout are understood to be drafting guidance that would make deduplication audits a prerequisite for councils seeking access to central government infrastructure grants.

For cultural institutions along the South Bank, including the British Film Institute and the Southbank Centre, the conversation is slightly different: their concern is less about planning compliance and more about rights management. When duplicate images circulate internally without clean provenance records, licensing disputes become harder to defend. The BFI's National Archive at Berkhamsted has reportedly been refining its deduplication workflows since 2024, partly in anticipation of a major digitisation push funded through Arts Council England.

The practical upshot for London's public bodies is straightforward, if not easy: organisations that want to be compliant with the government's digital planning standards by the target date of April 2027 will need to conduct formal audits of their image libraries, establish clear ownership for asset management, and budget accordingly. Consultants working in this space suggest that boroughs of average size should allow six to twelve months for a thorough deduplication exercise, depending on the volume of legacy uploads. The cost of inaction, in inflated storage bills and potential legal exposure, is increasingly hard to justify when central government funding for planning digitisation comes with strings attached.