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DayOne, a Singapore-based data center developer, is launching a €1.2 billion campus in Lahti, Finland, marking its first major European expansion. The facility will be built on a repurposed industrial site in the Kiveriö district and is expected to reach 128MW of IT capacity at full build-out. Initial demolition begins in late 2025, with the first 50MW phase scheduled to go live in 2027.
The project aligns with Lahti’s carbon neutrality goals and leverages Finland’s cool climate, renewable energy infrastructure, and skilled workforce to enhance operational efficiency. DayOne plans to incorporate free-cooling and is exploring heat reuse options. The company is currently in discussions with potential tenants, though no contracts have been finalized.
The project aligns with Lahti’s carbon neutrality goals and leverages Finland’s cool climate, renewable energy infrastructure, and skilled workforce to enhance operational efficiency. DayOne plans to incorporate free-cooling and is exploring heat reuse options. The company is currently in discussions with potential tenants, though no contracts have been finalized.
Events
This data center has timeline events listed. Typically events are related to M&A history, rebranding, capacity expansions etc.Aug 2025 - Stage Change
DayOne to invest EUR 1.2 billion in Lahti, Finland data center campus
- New Stage: Announced
- New Stage: Announced
Dec 2025 - Announcement
DataOne secures €500m credit facility from Brookfield for Finnish projects
Apr 7, 2026 - Lease
TikTok to invest €1bn in second Finnish data center, leasing space from DayOne in Lahti
Pricing & Services
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Nearest Data Centers
The below data centers are located closest to Väinämöisentie 2.| Distance | Data Center | Address |
|---|---|---|
| 0.14 km | FCDC Lahti | Ilmarisentie 3 |
| 18.62 km | Polarnode Heinola | Vierumäki Business Park, Heikinmäentie |
| 45.67 km | Verne - Finland - (Helsinki - Mäntsälä) | Gneissitie |
| 46.81 km | Nebius Mäntsälä Data Center | Moreenikatu 6 |
| 48.94 km | Hyperco Kouvola-Voikkaa | Myllytie 10 |
| 50.11 km | Solano Pyhäjärvi | TBA - To Be Announced |
| 52.31 km | Hyperco Kouvola-Koria DC2 | Puhdistamontie 30 |
| 52.31 km | Hyperco Kouvola-Koria Campus | Puhdistamontie 30-42 |
| 52.58 km | Hyperco Kouvola-Koria DC1 | Puhdistamontie 42 |
| 61.4 km | Winda Rastikangas | Välirasti 2 |