Milan's Digital Archives Are Riddled With Duplicate Images — and Residents Are Starting to Pay the Price

Milan's municipal digital infrastructure is carrying a growing dead weight. Across city-run platforms — from the Comune di Milano's online planning portal to the digital archive managed under the PGT (Piano di Governo del Territorio) framework — duplicate images have accumulated over years of rushed digitisation, vendor changes, and decentralised uploads. The problem is no longer a back-office nuisance. It is affecting response times for building permit applications, cluttering the city's public-facing tourism and design portals, and adding measurable costs to storage contracts that ultimately land on taxpayers.

The issue matters right now for one simple reason: the Milan-Cortina 2026 Winter Olympics are months away. City Hall and the Regione Lombardia have invested heavily in digital platforms meant to present Milan to a global audience — platforms where duplicate, mislabelled, or low-resolution images undermine the credibility of the entire operation. With events planned across venues from PalaItalia Santa Giulia to the Cortina slopes, every public-facing web asset is under scrutiny from international press and millions of visitors planning trips.

Where the Problem Shows Up on the Ground

The Sportello Unico per l'Edilizia, the single-counter building service operated from offices near Via Larga in the city centre, processes thousands of property and renovation submissions each year. Applicants uploading floor plans, elevation drawings, and site photographs regularly encounter error messages or processing delays traced back to the system's inability to distinguish between near-identical image files uploaded across multiple sessions. Staff at the counter have had to ask residents to resubmit documents — a delay that, for time-sensitive renovation work in dense neighbourhoods like Isola or Navigli, can push project starts back by weeks.

The Fondazione Milano Cortina 2026 communications infrastructure faces a parallel issue. Its media library, shared with partner agencies and accredited press, relies on clean, non-duplicated asset management to allow journalists and broadcasters to pull accurate venue imagery quickly. Industry benchmarks from content management specialists suggest that unresolved duplicate image rates in large municipal or event-management databases routinely run between 15 and 30 percent of total stored assets — a range that, if applied to a library of even 50,000 images, means thousands of redundant files consuming server space and slowing search retrieval.

For residents in Porta Nuova, where the ongoing development of the Gioia-Lunetta district continues to generate planning documentation at pace, the practical impact is concrete. Property owners applying for facade modifications or terrace extensions through the Comune's online portal have reported submission queues stretching beyond the standard 30-day acknowledgement window, a timeline that the city's own PGT guidelines are supposed to guarantee.

What Needs to Happen — and When

Digital asset management tools capable of automated duplicate detection have been commercially available and widely deployed in comparable European city administrations — Turin's Città Metropolitana digitisation programme and Barcelona's smart city office both completed deduplication audits of their civic image libraries before major international events. Milan has not publicly announced a comparable programme, though the Comune's three-year digital transformation plan, approved in 2024, does reference investment in "document and media lifecycle management" without specifying timelines or budget allocations.

For ordinary residents, the practical advice is straightforward. Anyone submitting image-heavy planning or permit applications through the Comune di Milano portal at comune.milano.it should compress and rename files with unique identifiers before upload, rather than relying on the system to handle duplicates automatically. Neighbourhood associations in Municipio 1 and Municipio 9 — both high-volume areas for permit activity given ongoing renovation pressure — have circulated informal guidance to this effect through their mailing lists this spring.

The longer fix requires the Comune to commission and complete a full deduplication audit of its civic media holdings before the Olympic torch arrives. Every week of delay means more files, more redundancy, and a slower, more expensive system for the people it is supposed to serve.