Corsico, Milan: a steelmaker’s warehouses turned into a 13.6 MW data center

By Razvan Toma · Founder & CEO, Ampervia · Last checked 2026-10-13 · Sources linked below

Quick answer

Steel group Marcegaglia sold an industrial complex in Corsico, on Milan’s western ring road, to telecom operator Retelit (announced September 2025). The site had two warehouses of about 11,500 m², offices and a yard, with high-capacity electrical and data connections already in place. Retelit broke ground in 2026 on a 13.6 MW data center in two buildings, with first capacity targeted for 2027.

Timeline

When	What happened
Before 2025	Part of a Marcegaglia steel site: two warehouses (~11,500 m²), ~600 m² offices, ~6,000 m² yard.
Sep 2025	Sale to Retelit announced (price not disclosed).
2026	Construction starts: two buildings, 13.6 MW total.
2027	First capacity targeted.

What changed between entry and exit

Chose an existing industrial site with power and fibre close to Milan.
The operator bought and builds itself: no intermediate developer.

Capital and counterparties

Retelit funds land and build within a €350m three-year investment plan.

Economics: confirmed and not disclosed

Item	Figure	Note
Purchase price	Not disclosed
Capacity	13.6 MW	Two buildings
Operator investment plan	€350m over three years	Group-wide, not this site alone

Risks and limitations

No price disclosed.
Lombardy has very large connection queues (44.96 GW of data center requests); an existing connection shortens the path.

Relevance to Ampervia

In Milan, existing industrial connections close to the city are what operators buy. Lombardy’s new law also rewards brownfield sites with lower construction charges.

Sources

Last checked 2026-10-13. Third-party precedent, not an Ampervia project.

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