Milan's Digital Archives Are Full of Duplicate Images — And Residents Are Paying the Price

Milan's network of public digital archives — spanning municipal records, neighbourhood documentation projects, and cultural institution databases — is carrying a significant and measurable burden: tens of thousands of duplicate images stored redundantly across servers, duplicating costs and clogging the infrastructure that residents rely on every day.

The problem is not abstract. When a resident in Navigli logs onto the Comune di Milano's civic portal to file a planning query, or a student at the Politecnico di Milano accesses the university's open-access image library for a design project, the sluggish response times they encounter are partly a symptom of bloated, unaudited digital storage. Duplicate image files — the same photograph or scan saved multiple times under different filenames, in different folders, by different departments — accumulate quietly until they represent a substantial share of total storage use.

The issue has come into sharp focus this summer as Milan-Cortina 2026 Winter Olympics preparations accelerate. The Fondazione Milano Cortina 2026 has been building out its public-facing communications platforms, and officials responsible for those systems have flagged database hygiene as a logistical priority ahead of the Games. With international press, sponsor networks, and millions of visitors expected to interact with Milan's digital infrastructure between now and the February 2026 opening ceremony, the cost of a slow or cluttered system is reputational as well as financial.

What Duplicate Images Actually Cost a City

Storage is not free. Milan's Comune maintains server contracts that are renegotiated on multi-year cycles, and industry-standard benchmarks from European cloud infrastructure providers suggest that unmanaged duplication in large civic databases can inflate storage requirements by 20 to 40 percent compared with properly deduplicated systems. For an institution operating at scale — such as the Archivio Civico Fotografico, which holds hundreds of thousands of digitised images of the city going back to the nineteenth century — even a 20 percent reduction in redundant files translates to meaningful savings in annual licensing and maintenance costs.

Those savings matter in a city where cultural institutions are competing for limited public funding. The Triennale di Milano, based in the Parco Sempione, runs digital programming alongside its physical exhibitions, and smaller neighbourhood documentation projects — including volunteer-led efforts to catalogue the architectural transformation of Porta Nuova and the historic fabric of the Brera district — depend on cost-efficient infrastructure to survive. When budgets are tight, every euro spent on unnecessary duplicate storage is a euro not spent on digitising new material or paying the archivists who maintain public access.

The problem is compounded by the decentralised way Milan's civic and cultural bodies have grown their digital operations. Different departments at the Comune, individual museums, and semi-autonomous bodies like MM SpA — which manages the city's water and social housing infrastructure — have historically maintained separate image repositories with little cross-institutional coordination. A photograph of a Via Padova housing block, for example, might exist in three separate databases, each unaware of the others.

What Comes Next for Residents and Local Institutions

The practical fixes are well understood, even if implementation takes time and political will. Deduplication software can identify and flag redundant files automatically; the challenge is securing agreement across institutions about which version of a duplicated image is the canonical one, and ensuring that deletion does not accidentally destroy metadata or provenance records that give archival images their value.

For residents, the most immediate benefit of a cleaner civic image infrastructure would be felt in the speed and reliability of online services — from the AGO Milano cultural platform's digital collections to the municipal planning portal used by homeowners in Isola and Lambrate. Institutions that complete deduplication audits also typically report lower cloud expenditure within one to two budget cycles, freeing funds for public-facing programmes.

Milan's digital administrators would do well to treat the run-up to the 2026 Winter Olympics as a forcing function. The Games have a fixed deadline. The city's image — literal and reputational — will be under global scrutiny from January onwards. Getting the databases in order before then is not a technical nicety. It is basic civic housekeeping.