Milan and Lombardy Finalize Agreement for New San Siro, Targeting Late 2027 Groundbreaking

The long-running saga of the San Siro's replacement finally has a concrete timeline. AC Milan and Inter Milan, backed by the Municipality of Milan and the Lombardy Region, have formalized a collaboration agreement that clears the bureaucratic runway for a new 71,500-seat stadium. The target is now set in stone: secure all final authorizations by the summer of 2027, and break ground in the second half of the year.[1][3]

The newly approved pact is designed to cut through Italy's notoriously dense red tape. By coordinating the environmental and planning procedures between the city and the region, the agreement prevents overlapping reviews and establishes a strict 560-day countdown from the submission of the project's implementation plan. Deputy Mayor Anna Scavuzzo confirmed the municipality's commitment to accelerating the timeline, noting that the city will bring forward its activities wherever possible to meet the clubs' ambitions.

The stakes for the timeline extend far beyond the domestic league. Italy is co-hosting the 2032 UEFA European Championship with Turkey, and Milan needs a state-of-the-art venue to secure marquee matches for the tournament. City officials have explicitly linked the accelerated 2027 construction start to ensuring the stadium is fully operational and tested well ahead of the Euro 2032 kickoff.[1]

The architectural vision for the new arena, designed by the firms Foster + Partners and Manica, promises an ultra-modern facility built on the land immediately surrounding the current stadium. The clubs laid the financial groundwork for this phase late last year by purchasing the existing Giuseppe Meazza stadium and the adjacent Parco dei Capitani area from the city for €197 million.[1]

Officially designated as "stralcio 1" (section 1) of the San Siro Major Urban Function, the initial construction phase involves more than just the stadium itself. The approved plans mandate the construction of the new Patroclo tunnel to handle redirected traffic, followed by the erection of the new arena. Only once the new ground is ready to host matches—projected for the 2030-2031 season—will the iconic, nearly century-old San Siro face partial demolition. Before the wrecking balls arrive, the historic venue will have one final global spotlight, hosting the Opening Ceremony of the 2026 Winter Olympics.[2]

The decision to pursue a joint project marks a pragmatic pivot for both clubs. After exploring and ultimately abandoning plans to build separate, standalone stadiums in the suburbs of San Donato and Rozzano due to zoning and political hurdles, AC Milan and Inter recognized that a shared €1.2 billion facility at their historic home was the most viable path forward.[1]

For the two Serie A giants, the new stadium is an absolute financial imperative. Both clubs currently lag significantly behind their European rivals in matchday revenue, constrained by the aging infrastructure and lack of premium hospitality at the current San Siro. A modern, 71,500-seat venue equipped with extensive commercial and entertainment zones is viewed as the only way to sustainably compete with the financial muscle of the Premier League and state-backed clubs.[1][3]

While the political alignment between the city and the region is a massive victory for the project, the roadmap is not entirely clear of obstacles. Local civic associations and resident groups continue to mount legal appeals against the sale and redevelopment of the area. However, with the environmental assessments now formally coordinated and the bureaucratic deadlines locked in, the momentum has decisively shifted toward the heavy machinery rolling in by late 2027.