United Kingdom
The United Kingdom has 124 operating data centers in our registry, and we estimate 2 254 MW of data center capacity in the country. About 1 870 MW of that is colocation and hyperscale capacity we track directly.
Total capacity
2 254 MW
51% published · 32% floor area · 17% modelled
Tracked sites
124
Colocation, hyperscale, enterprise and hosting sites we hold evidence for
Colocation + hyperscale
1 870 MW
Across 123 sites
Sites under construction
Coming soon
  • Colocation1 790 MW
  • Hyperscale80 MW
  • Enterprise and hosting, modelled384 MW
Of the total: 51% published · 32% floor area · 17% modelled. Data as of 10 October 2026.

The United Kingdom is one of Europe’s two largest data center markets alongside Germany, with London and the Slough corridor forming part of the FLAP-D group of hubs. Demand from cloud and AI services continues to drive new projects, increasingly outside the congested London area.

The government has designated AI Growth Zones, which offer priority for grid connections, support for private grid infrastructure, discounted electricity costs and accelerated planning, along with up to £5 million per zone for local initiatives. On the grid side, demand connection requests grew from 41 GW to 125 GW in under a year, up to 100 GW attributed to data centres, and a demand connections reform now aims to prioritize the most advanced projects and encourage phased, non-firm and flexible connections.

Top 3 largest data centres

Vantage Data Centers Cardiff / Newport (CWL1), former LG semiconductor plant
≈148 MW
published IT capacity
VIRTUS Data Centres Stockley Park Campus
≈112 MW
published IT capacity
VIRTUS Data Centres Slough Campus
≈106 MW
published IT capacity