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London: 225 data centres, 75 operators, 2,675 MW live

There are 225 data centres in London, United Kingdom, spanning 16 sub-markets, 75 operators, 193 operational, 2,675 MW live (6% modelled), 3,856 MW total potential. Largest by total potential: Ark Data Centres (20 sites), then Global Switch.

Map of 175 data centres in London

Every London site DC Atlas tracks with a position on record, coloured by status.

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Live

2,675MW

6% modelled

Under construction

509MW

Planned

609MW

Total potential

3,856MW

6% of pipeline modelled

Who supplies the power

88% of the data centres we track in the London market have a named power supplier

  • UK Power Networks148sites
  • SSEN33sites
  • National Grid7sites
  • London Energy Limited2sites
  • Bryt Energy2sites
  • Slough Heat and Power1site

5 further suppliers serve smaller numbers of sites here.

Who is building in London

The 10 largest operators here by total potential, of 75 tracked in this market.

OperatorSitesLiveTotal potential
Ark Data Centres20205 MW530 MW
Global Switch4347 MW347 MW
Virtus15271 MW271 MW
Digital Realty17250 MW250 MW
Equinix18227 MW227 MW
Amazon372 MW183 MW
CyrusOne782 MW172 MW
Google3163 MW
Colt DCS792 MW149 MW
CloudHQ1101 MW

When London was built

1,911 MW of the live capacity here carries a commissioning date — 64% of the operational sites in this market.

473 MW1990199419982002200620102014201820222026

Recent activity

129 recorded developments in the London market, the latest on 25 Aug 2026.

  • 25 Aug 2026Partnership

    LINX, JPIX launch London-Tokyo network peering route

    Internet exchange operators LINX and JPIX have launched direct network routes connecting London and Tokyo, enabling European networks to peer at JPIX's Tokyo interconnection platform and access Japanese digital content. The service, priced at £400/month for 1Gbps introductory connectivity and up to 5Gbps for higher bandwidth, extends LINX's IX Connect programme and reverses an initial 2018 partnership that gave Tokyo networks London access. The route supports demand for Japanese anime, manga and gaming content among European networks and positions Tokyo as a major interconnection hub with 20+ international subsea cables.

  • 19 Aug 2026Permit filed180 MW

    Plans filed for 180 MW data center in East London, UK

    Plans have been filed for a 180 MW data center development in East London, UK.

  • 14 Aug 2026Permit approved

    Data centre spanning up to 50,000 sqm gets approval for construction in west London

    A data centre spanning up to 50,000 square metres received planning approval for construction in west London, the UK.

  • 11 Aug 2026Permit approved$625M

    Housing Secretary approves Brick Lane data centre despite unanimous local opposition

    Housing Secretary Angela Rayner approved a £500 million mixed-use redevelopment of the Truman Brewery estate on Brick Lane in east London, overriding unanimous opposition from Tower Hamlets Council, the local mayor, and nine resident groups. The scheme includes a 5,200 sq ft data centre on Grey Eagle Street, five office buildings, residential units, retail and entertainment space. The approval, granted via ministerial recovery of planning appeals, was justified partly on grounds that data centres are designated Critical National Infrastructure in the UK as of September 2024, giving them additional regulatory weight in planning decisions.

  • 5 Aug 2026Regulation

    London Plan 2026 establishes first dedicated data centre siting policy

    The Mayor of London's draft London Plan 2026 introduces the first dedicated planning policy for data centres, tying future development to electricity and water capacity, clustering opportunities, waste heat recovery, and local community benefits. The GLE3 Data Centres policy requires local planning authorities to identify suitable locations based on current and projected infrastructure capacity, with development supported in principle at appropriate sites. The policy emphasizes that data centres must be clean and efficient, aligned with climate goals, and contribute local benefits through Community Infrastructure Levy provisions. The planning framework moves from land-availability-led site selection to infrastructure-capacity-led, treating data centres as part of London's strategic growth strategy alongside other major infrastructure.

  • 30 Jul 2026Acquisition100 MW

    Yondr sells majority stake in Slough hyperscale campus to GLIL Infrastructure

    Yondr Group has agreed to sell a majority interest in its operational Slough hyperscale data centre campus to GLIL Infrastructure, with Yondr retaining a minority stake.

  • 28 Jul 2026Zoning decision

    London Mayor opens green belt to data centre development

    Mayor of London Sadiq Khan has published proposals that would allow data centres to be built on parts of London's green belt for the first time.

  • 27 Jul 2026Interconnection agreed

    RETN launches London–Brussels optical route to relieve UK–Europe traffic

    RETN has established a new optical spectrum route between London and Bruxelles to improve resilience between British and continental European data centers. The route bypasses congested hubs in Amsterdam and Paris, as well as traditional London Docklands egress points, creating an alternative path for UK–Europe traffic. This infrastructure addition addresses capacity constraints on existing interconnection routes.

All recent activity

Who is hiring in London

5 open data centre roles at 3 operators we track

5 roles are open across 3 operators in London, and Nebius holds 3 of them. 4 of the 5 are build-side, led by construction at 2. That is the staffing profile of a market putting capacity up rather than running it.

The mix

  • construction2
  • development and land2
  • network1

Most recently opened

  • Nebiusdevelopment and land24 Jul 2026
  • Nebiusdevelopment and land11 Jun 2026
  • CoreWeaveconstruction11 Jun 2026
  • Nscaleconstruction18 May 2026
  • Nebiusnetwork28 Jan 2026

Counted from the operators' own public careers feeds, read daily. A role counts here when the employer runs a data centre we track and the work is operational rather than back office. What these roles involve, and what they pay.

Questions about London

How many data centres are in London?
There are 225 data centres in London, United Kingdom, spanning 16 sub-markets, 75 operators, 193 operational, 2,675 MW live (6% modelled), 3,856 MW total potential. Largest by total potential: Ark Data Centres (20 sites), then Global Switch.
How much data centre capacity does London have?
DC Atlas tracks 225 data centres in the London data centre market. 2,675 MW is live, 509 MW is under construction, 609 MW is planned, for 3,856 MW of total potential at full buildout.
Who are the largest data centre operators in London?
75 operators run facilities in the London data centre market. Ark Data Centres is the largest by total potential, with 20 sites and 530 MW.
Which utilities supply power to data centres in London?
UK Power Networks, SSEN and National Grid serve the most data centre sites in the London data centre market. DC Atlas holds a named power supplier for 88% of the facilities it tracks here.

Every data centre we track in London

179 of 225 with a published page

Ark Data Centres19

Equinix18

Digital Realty15

Virtus15

Csquare6

Redcentric5

Telehouse5

CapitaLand4

Colt Technology Services4

Global Switch4

Iron Mountain Data Centers4

Stellanor Datacenters4

Google3

NTT Global Data Centers3

AMAZON DATA SERVICES UK LIMITED2

COLT DCS2

CyrusOne2

Echelon Data Centres2

EXA Infrastructure2

Galaxy Data Centers2

Iomart2

Kao Data2

NaviSite2

Netwise2

nLighten2

Nscale2

Rackspace2

Vantage Data Centers2

Virgin Media O22

11:11 Systems1

365 Data Centers1

Ada Infrastructure1

Amazon Data Services UK Limited1

Aptum1

Asanti1

Centrilogic1

China Mobile1

CloudHQ1

Cogent1

CoreSpace1

Custodian1

Cyberfort Group1

Cyberfort Group Ltd1

DataBank1

Docklands Data Centre Limited1

Global Technical Realty1

Hivelocity LLC1

IBM Cloud1

Intercity Technology1

IP House1

IPTP Networks1

Keppel Data Centres1

Kyndryl1

Latitude.sh AS3963561

Microsoft1

Oracle Cloud1

OVHcloud1

Proact1

Pulsant1

PureDC1

ServerMania Inc1

Summit1

talia limited1

Tata Communications1

Telstra1

Templus1

Verizon1

Verne Global1

VOXILITY1