Market
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.
London is one scope of the whole corpus. See every facility DC Atlas tracks on the global data center map.
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.
| Operator | Sites | Live | Total potential |
|---|---|---|---|
| Ark Data Centres | 20 | 205 MW | 530 MW |
| Global Switch | 4 | 347 MW | 347 MW |
| Virtus | 15 | 271 MW | 271 MW |
| Digital Realty | 17 | 250 MW | 250 MW |
| Equinix | 18 | 227 MW | 227 MW |
| Amazon | 3 | 72 MW | 183 MW |
| CyrusOne | 7 | 82 MW | 172 MW |
| 3 | — | 163 MW | |
| Colt DCS | 7 | 92 MW | 149 MW |
| CloudHQ | 1 | — | 101 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.
Recent activity
129 recorded developments in the London market, the latest on 25 Aug 2026.
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.
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.
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.
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.
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.
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.
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.
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.
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
The roles behind those numbers
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
- Chertsey Ark 010
- Chertsey Ark 014
- Farnborough Ark 001
- Farnborough Ark 002
- Farnborough Ark 003
- Farnborough Ark 004
- Farnborough Ark 005
- Farnborough Ark 006
- Hayes Ark 009
- Hayes Ark 013
- Greenford Ark 012
- London Ark 008
- West Ealing Ark 011
- Elstree Ark 016
- Elstree Ark 020
- Hertsmere Ark 017
- London Ark 015
- London Ark 018
- London Ark 019
Equinix18
- London CityFibre Networks 002
- London Equinix 001
- London Equinix 001
- London Equinix 002
- London Equinix 003
- London Equinix 006
- London Equinix 017
- Slough Equinix 005
- Slough Equinix 007
- Slough Equinix 008
- Slough Equinix 009
- Slough Equinix 010
- Slough Equinix 014
- Slough Equinix 016
- Slough Equinix 018
- Slough Equinix 019
- Slough Equinix 020
- Slough Equinix 021
Digital Realty15
- Chessington Digital Realty 001
- Crawley Digital Realty 003
- Crawley Digital Realty 004
- Crawley Digital Realty 006
- London Digital Realty 007
- London Digital Realty 008
- London Digital Realty 012
- London Digital Realty 013
- London Digital Realty 014
- London Digital Realty 015
- London Digital Realty 016
- London Digital Realty 018
- Slough Digital Realty 009
- West Drayton Digital Realty 017
- Woking Digital Realty 010