Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more

The UK is not currently smaller or less developed than continental Europe: CBRE still ranks it as Europe’s largest data-centre market, while Newmark calls it the continent’s most mature. The warning is about what comes next. If projects cannot secure electricity, grid connections, planning approval and construction capacity on workable schedules, some future investment may move to places where those conditions are easier.

That risk is emerging while demand remains exceptionally strong. London is forecast to take more than 212MW in 2026, with year-end vacancy at 5.5%, according to CBRE’s 2026 midyear review. The market’s central problem is therefore not a lack of customers, but the ability to turn proposed capacity into operating facilities.

The UK is a leading market, but its future pipeline is under pressure

London accounts for more than 80% of UK data-centre supply, according to CBRE. That concentration reflects the value of established cloud availability zones, carrier connectivity and proximity to major customers. It also makes the country’s expansion vulnerable to local constraints in and around the capital.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

CBRE forecast 180MW of London-area supply for 2026, compared with 193MW delivered in 2025. Across 2025 and 2026, the forecast total is 373MW—more than double the 147MW delivered during the preceding two-year period. Those figures describe a large and expanding market, not one that has already fallen behind Europe.

#1 Best Overall
Tecmojo 6U Wall Mount Server Cabinet IT Network Rack Enclosure Lockable Door and Side Panels Black, Cooling Fan, Standard Glass Door, 450mm Depth, for 19” IT Equipment, A/V Devices
  • Save valuable floor space: 6U wall mount server cabinet Dimensions: 13.78" H x21.65" W x17.72" D.Maximum mounting depth is 14.2"
  • Keep critical network equipment secure: glass door and side panels are lockable to prevent unauthorized access. Front door can be installed on either side of the front of the cabinet to satisfy your door swing orientation preference
  • Easy equipment configuration: Fully adjustable mounting rails and numbered U positions, with square holes for easy equipment mounting with top and bottom punch-out panels for easy cable access
  • Durability: Made of high quality cold rolled steel holds up to 110lb (50kg) (Easy Assembly Required)
  • PCI & HIPPA and EIA/ECA-310-E compliant
Measure Reported figure Source and qualification
London-area supply delivered in 2025 193MW CBRE, 2026 outlook
London-area supply forecast for 2026 180MW CBRE, 2026 outlook
Combined London-area supply for 2025–26 373MW CBRE; compared with 147MW in the prior two years
UK supply located in London Over 80% CBRE
Newport and Cardiff share 9% CBRE
Manchester share 2% CBRE
London take-up forecast for 2026 Above 212MW CBRE midyear review; later forecast than its January estimate of 189MW
London year-end vacancy forecast for 2026 5.5% CBRE midyear review; January estimate was 5.9%

Power and grid connections are the central bottlenecks

Proposed UK data-centre projects have requested around 50GW of grid capacity, Savills reported on 2 July 2026. That is an aggregate of requests from proposed projects, not 50GW of approved connections or a forecast of capacity that will all be built.

Getting a connection is only one stage. Developers must also secure land, obtain planning consent, complete design, procure equipment, finance construction and bring the facility into operation. A project can therefore appear in a pipeline for years without adding usable capacity.

“AI training drives headlines; inference drives the long-term demand reality,” wrote Cameron Bell, director of EMEA Data Centre Advisory at Savills. He said delivery would be shaped by power availability, grid access and planning constraints. Electricity cost, the date a connection can actually be delivered and the availability of construction contractors all affect whether a site is commercially viable.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Why London remains dominant despite its constraints

Customers often prioritise established cloud regions, network density and access to London-based businesses. That keeps demand concentrated even when suitable power is easier to find elsewhere.

CBRE says power scarcity is pushing some planned developments toward locations adjacent to London’s existing cloud availability zones. These sites can offer more workable electricity arrangements while preserving customer and connectivity advantages. The trade-off is that they still depend on timely transmission and distribution upgrades, planning decisions and sufficient building capacity.

Rank #2
Tecmojo 12U Wall Mount Server Cabinet IT Network Rack Enclosure Lockable Door and Side Panels Black,Cooling Fan,Glass Door,17.7inch Depth,for 19” IT Equipment,A/V Devices
  • Save valuable floor space: 12U wall mount server cabinet Dimensions: 24.25" H x21.65" W x17.72" D. MAXIMUM MOUNTING DEPTH is 14.2".
  • Keep critical network equipment secure: glass door and side panels are lockable to prevent unauthorized access; Front door can be installed on either side of the front of the cabinet to satisfy your door swing orientation preference
  • Easy equipment configuration: Fully adjustable mounting rails and numbered U positions, with square holes for easy equipment mounting with top and bottom punchout panels for easy cable access
  • Durability: Made of high quality cold rolled steel holds up to 110lb (50kg) (Easy Assembly Required)
  • PCI & HIPPA and EIA/ECA-310-E compliant

CBRE also reported that hyperscalers returned to the London market toward the end of 2025 after a pause. AI workloads are increasing required power density and floor loading, raising the engineering demands of new facilities. Neocloud operators are adding GPU capacity for customers that need rapid access to compute, including users that must remain close to London customers.

Demand is changing from concentrated training to wider inference

Savills distinguishes between large, concentrated AI-training deployments and inference capacity used as AI becomes part of everyday business workflows. Training demand can be cyclical and focused in a small number of very large facilities; inference is more likely to be distributed across regions to meet latency, resilience and customer-location requirements.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Savills has discussed possible modular deployments in increments of 5MW to 20MW. Those increments are an analytical deployment pattern, not a confirmed construction programme. They illustrate why a market may need both very large campuses and smaller, repeatable sites near population centres and network hubs.

Where new UK capacity is expected to appear

London still dominates, with Newport and Cardiff together representing 9% of national supply and Manchester 2%, according to CBRE. Other developments are being considered near London and in regions where power availability is more favourable.

The government’s AI Growth Zones are intended to support capacity outside the established clusters. In CBRE’s 2026 midyear review, work had begun at North Lanarkshire and Cambois. The other named zones had not yet attracted new data-centre investment at the time of that review. The policy is therefore an early-stage intervention rather than evidence that regional capacity has already been delivered.

Rank #3
Tecmojo 4U Wall Mount Rack,4U Rack 14 inch Depth,19" Network Rack for Shallow Server and IT Equipment, Network Switches,Patch Panel Bracket,110lbs(50kg) Weight Capacity,Black
  • Sturdy:4u server rack is construct from cold rolled steel, with a weight capacity of 110lbs(50kg); Electrostatic powder coat prevents rust and corrosion,quality finish
  • Direct use:Open and use, not having to assemble it.Network rack can be placed flat or mounted on the wall,also can be installed vertically under the table
  • Design Features:maximum mounting depth of 14 in,cables can be fixed on the side panel;Open frame server rack achieves effortless inspection, replacement and assemble
  • Installation:wall mount network rack is easy to install,with instructions or videos for reference;Equipped with multiple accessories, suitable for different needs
  • Application:EIA/ECA-310-E Compliant;wall mounted 4u rack fits all 19" racks and cabinets to hold various IT, network, and AV equipment;wall mount rack available in 4U, 6U, and 8U to choose
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Investment numbers show confidence, not completed capacity

Newmark’s analysis of FDI Markets put UK data-centre foreign direct investment at about €50bn during 2018–24, compared with €28bn for Germany. Osborne Clarke reported £59bn committed for 52 new UK data-centre sites over nine years.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Both figures demonstrate investor interest, but neither should be read as operational supply. Commitments and announced sites still have to pass planning, grid-connection, design, procurement and construction milestones. The gap between a financial commitment and a powered, occupied facility is particularly important when grid queues and planning timelines are uncertain.

How the UK compares with alternative European locations

There is no single ranking that establishes the best European market for every data-centre project. A developer comparing the UK with Nordic or other European locations should assess the complete delivery equation:

  • Power and timing: available megawatts, electricity price and the date a firm grid connection can be delivered.
  • Land and planning: site assembly, zoning, environmental review and consenting time.
  • Connectivity: subsea and terrestrial routes, cloud-region access and latency to customers.
  • Construction capacity: availability of specialist contractors, equipment and commissioning teams.
  • Workload fit: large AI-training clusters may favour very different sites from distributed inference.

Savills and Newmark point to Nordic power availability and constraints in established hubs, but those observations are market context rather than a complete scorecard. A location with cheaper or faster power may still be less attractive if it lacks connectivity or customer proximity; a London-adjacent site may command demand but face longer connection and planning queues.

What would make the warning real?

The quoted phrase in the headline—“Everything else will go where it is easier to build”—has no verified named attribution in the available material. Its underlying risk can nevertheless be tested through delivery outcomes. The UK would be losing future growth if projects repeatedly shift abroad or are cancelled because connection dates, planning approvals or construction schedules cannot meet customer requirements.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

Conversely, faster grid delivery, effective regional planning and successful AI Growth Zones could let the UK convert its strong demand and investment base into operating capacity. The decisive evidence will be completed facilities and energised connections, not the size of the proposed pipeline alone.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.