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DataCentersExposed
Mapped (unverified)

Longcross Park

Chertsey, Surrey, United Kingdom

Source: OpenStreetMap

Longcross Park is a mapped data center in Surrey, United Kingdom, operated by Ark Data Centres. DataCentersExposed has documented a 77,413 sq ft footprint and 1 environmental-permit record at this site. It runs on United Kingdom's grid, which was 36% fossil-fuelled at 217 gCO₂e/kWh in 2025 (Ember).

Reporting by · Updated Jun 14, 2026

Real parent
Ark Data Centres
Operator
Ark Data Centres
Est. capacity
~15-35 MW
Footprint
77,413 sq ft
Grid carbon
217 gCO₂/kWh
Clean electricity
64%
Region
Surrey
Attribution & capacity confidence:mediumprimary source
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

Longcross Park is a mapped data center in Chertsey, United Kingdom, run by Ark Data Centres. The site has a reported footprint of 77,413 square feet. Available records do not name an ultimate parent above Ark Data Centres.

Operator chain

The grid behind this site

source: Ember · Eurostat
Grid carbon intensity
217 gCO₂/kWh
Clean electricity
64%
Fossil electricity
36%

National grid context, not this facility's own metering. Full country picture: United Kingdom data centers.

Environmental permits

source: Permit register
  • ARK DATA CENTRES LIMITEDEPR/SP3004SB
    EPR permit · holder "ARK DATA CENTRES LIMITED" · Runnymede · Combustion; Any Fuel =>50MW - 1.1 A(1) a) · within ~2 km of the mapped site

Methodology & sources

Every row carries a confidence level (high / medium / low) and a source URL. Spot an error? Tell us.