SINES DC, Portugal — Europe's Largest Data Center Campus
Start Campus is developing SINES DC in Sines, Portugal — a 1.2 GW data center campus set to become Europe's largest and most sustainable data center complex. The project has attracted major hyperscale clients including Microsoft, and is powered entirely by renewable energy using innovative seawater cooling.
The first building, SIN01 (26 MW), was inaugurated in April 2025. Construction of subsequent phases is ongoing, requiring large teams of specialists in electrical engineering, HVAC, civil construction, and data center fit-out.
Many of the contractors working on SINES DC are Nordic companies with established bases in Sweden, Denmark, Norway, and Finland. See our dedicated Portugal page for more details.
Other European Data Center Projects to Watch
Beyond Portugal, several major European data center projects are underway or in development: Microsoft is investing heavily in data center infrastructure across the UK, Germany, and the Netherlands. Google is expanding its European footprint with new campuses in Belgium, Denmark, and Finland.
Meta has a major data center in Odense, Denmark. In Ireland, multiple hyperscale campuses are under construction near Dublin.
Spain is emerging as a new data center hub with projects in Madrid and Barcelona. As these projects develop, Katrineholm Longstay will update this page with specific accommodation information for each location.
Nordic Contractors Working on European Projects — Accommodation in Sweden
Many contractors working on European data center projects — including SINES DC in Portugal — are Nordic companies headquartered in Sweden, Denmark, Norway, or Finland. When these teams return between project rotations, or when their Swedish-based colleagues need accommodation near domestic data center projects, Katrineholm Longstay is the natural choice.
We offer fully furnished apartments for long-stay professionals, with corporate invoicing, flexible lease terms, and dedicated account management. For procurement departments managing accommodation across multiple European projects, we can serve as your Swedish accommodation partner — simplifying vendor management and providing a consistent quality standard.
Contact us at [email protected] to discuss your requirements.



