Who owns The Chess Building?

The Chess Building is owned and operated by CapitaLand Ascendas REIT.

How clean is the grid behind The Chess Building?

The Chess Building runs on United Kingdom's grid, which was 217 gCO₂/kWh and 64% clean in 2025 (Ember).

Where is The Chess Building located?

The Chess Building is in Watford, Hertfordshire, United Kingdom.

Mapped (unverified)

The Chess Building

Watford, Hertfordshire, United Kingdom

Source: OpenStreetMap

The Chess Building is a mapped data center in Hertfordshire, United Kingdom, operated by CapitaLand Ascendas REIT. DataCentersExposed has documented a 116,047 sq ft footprint at this site. It runs on United Kingdom's grid, which was 36% fossil-fuelled at 217 gCO₂e/kWh in 2025 (Ember).

Reporting by Eric Keller · Updated Jun 14, 2026

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Real parent

CapitaLand Ascendas REIT

Operator

CapitaLand Ascendas REIT

Est. capacity

~20-50 MW

Footprint

116,047 sq ft

Grid carbon

217 gCO₂/kWh

Clean electricity

64%

Region

Hertfordshire

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

The Chess Building is a mapped data center in Watford, United Kingdom, operated by CapitaLand Ascendas REIT. Public records list its footprint at 116,047 square feet. Available records do not name an ultimate parent above CapitaLand Ascendas REIT for the site.

Operator chain

Ultimate parent
CapitaLand Ascendas REIT
Files as
CapitaLand Ascendas REIT
This facility
The Chess Building

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.

In the news

source: Google News (local + English)