Data Centres· Premium
UK Data Centre Capacity Atlas 2026
Site-by-site inventory of operational and pipeline UK data centre capacity, with planning status, power requirement and expected commissioning date.
Published 2 Apr 202692 pagesVersion v2.0
Executive summary
What this report covers
The UK data centre pipeline totals 8.6 GW of proposed capacity across 74 sites, of which 3.1 GW has grid connection dates before 2030. Planning bottlenecks — not power — are the binding constraint in three of the top five clusters.
Key findings
Headline conclusions
- 8.6 GW proposed capacity across 74 UK sites.
- 3.1 GW has firm grid connection dates before 2030.
- Planning permission is the binding constraint in Slough, West London and Manchester.
- Cardiff and Newport lead new-build build-out speed.
Who should read this
Intended audience
- Infrastructure investors and REITs
- Data centre developers and operators
- Local authorities in AI Growth Zones
- Grid and transmission planners
Table of contents
Inside the 92-page report
- 011. Methodology and data sources
- 022. National capacity summary
- 033. Regional cluster deep-dives (10)
- 044. Pipeline by planning status
- 055. Grid connection timelines
- 066. Risk and delay analysis
- 07Appendix: Site register (74 sites)
Preview
Sample pages
Frequently asked questions
Are individual site financials included?+
No — the atlas covers physical and planning attributes. Financial modelling is available in bespoke engagements.
How current is the site data?+
The register was refreshed in April 2026 from planning portals, TEC register and operator disclosures.
Get in touch about this report
Premium reports include full data appendices and a briefing call with the analyst team.