Ark Longcross Park data centre campus, Longcross Garden Village, Chertsey
Ark Data Centres
Ark Data Centres' modular campus at Longcross Park, the first commercial development in Longcross Garden Village (Runnymede), part of the Enterprise M3 Enterprise Zone. AI cloud firm Nebius signed in June 2025 (initial 4,000 Nvidia Blackwell Ultra GPUs, live November 2025) and by June 2026 had taken the whole LP01 building. In June 2026 Ark announced an £807m expansion: vertical extensions to existing buildings, infrastructure upgrades and a new 36 MW building, LP02.
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- Operator / developer
- Ark Data Centres
- Location
- Longcross Park, Chobham Lane, Longcross, South East, United Kingdom
- Status
- Operational
- Facility type
- Data centre
- AI relevance
- High — AI/compute led
- Stated investment
- £807,000,000
Power & grid
- Power
- Expansion announced June 2026 includes vertical extensions to the existing buildings, infrastructure upgrades and a separate new 36 MW building (LP02). Campus total not confirmed by Ark (an industry database gives 54 MW across two buildings).
Planning
- Council
- Runnymede Borough Council
- Planning route
- Local planning (TCPA)
Timeline
Ark announces new building (LP02, 36 MW) and extensions at Longcross; £807m investment
Source
Sources
- Ark DC to add new building to Longcross data center campus outside London, UK
Secondary source · DatacenterDynamics (secondary) · 2026-06-09
- Ark to invest GBP £807m in Surrey data centre expansion
Secondary source · IT Brief UK (secondary) · 2026-06-15
- Nebius fills Ark's Longcross data centre to capacity
Secondary source · DataCentreNews UK (secondary) · 2026-06-01
Last verified
6 November 2026
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