Researched by N84 from planning records, operator statements and press. TEC rows are not labelled data centres: the register has no such category. Confidence: A documented in an official record; B operator statement; C credible report; D single unconfirmed report.
| Site | Operator | Stage | Confidence | MW |
|---|---|---|---|---|
| SDC M40 Campus (Wapseys Wood), between Gerrards Cross and Beaconsfield, Buckinghamshire | SDC Capital Partners / Slough Holdings UK Ltd (applicant); Veolia land | Enquiry estimated | A | 300 MW |
MW basis: IT load up to c.300MW (3x c.100MW); gas connection up to c.900MW; on-site energy centre 250-350MW Planning: Not applicable (NSIP; Secretary of State decides) Grid status: On-site gas energy centre; no grid connection stated Note: PINS register shows Pre-application; DCO application expected Jan 2027. Section 35 direction issued March 2026 (DCD). No DCO ref yet. Stage mapped to enquiry (pre-application). | ||||
| Arena Essex and Fishing Lake, Arterial Road, Purfleet-on-Thames | Not stated in notice (Iceni Projects contact only) | Planning submitted | A | not stated |
Planning: Thurrock Council, 25/00573/OUT Note: Hybrid application with EIA, from Thurrock public notice (date of notice not shown). No MW published; do not infer. Outcome not checked. Source 1, checked 21 Oct 2026 | ||||
| Cobalt Park, Wallsend, North East AI Growth Zone | Cobalt Park Data Centres; Nscale (Stargate UK with OpenAI, NVIDIA) | Partly operational estimated | A | not stated |
Planning: North Tyneside Council (inferred) estimated Grid status: AGZ energy capacity 1.1GW within 6 years (gov.uk) Note: gov.uk (Sep 2025) says Cobalt Park already established; Nscale/Stargate phase one up to 8,000 GPUs. Expansion planning not seen. Site MW not published. Source 1, checked 21 Oct 2026 | ||||
| Hayes Digital Park (London 6-8), Hayes, Hillingdon | Colt DCS | Consented | B | 97 MW |
MW basis: 97MW IT power added (campus total 160MW) Planning: London Borough of Hillingdon Grid status: Colt: power contracts secured with National Grid; HV supply by Oct 2027 Note: Hillingdon approved 2 Oct 2025; subject to Mayor of London's 14-day review (outcome not confirmed in opened sources). Construction from mid-2026, first hall early 2029. | ||||
| Kenwood Point, Stockport, Greater Manchester | Kao Data | Consented | B | 40 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Stockport Council Note: Permission March 2024; operator said operational 2026 (not confirmed). Outside target regions and below 50MW. Source 1, checked 21 Oct 2026 | ||||
| QTS Cambois campus, near Blyth, Northumberland | QTS (Blackstone) | Consented | C | 720 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Northumberland County Council Grid status: Not stated by DCD; gov.uk says campus due to open 2028 (per North East mayor) Note: Outline permission granted by committee 4 Mar 2025 (DCD, article dated 5 Mar 2025); detailed application to follow. Part of North East AI Growth Zone (gov.uk, Sept 2025). Check reserved-matters status. | ||||
| Blackdog, near Aberdeen | Ashfield Land (developer); operator not named | Enquiry estimated | C | 600 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Aberdeenshire Council Grid status: No connection described; offshore wind supply floated Note: DCD 21 Apr 2026, report only; 64-acre parcel only had a 2017 business/industrial allocation decision. Source 1, checked 21 Oct 2026 | ||||
| Cato, near Auchtertool, Fife | ILI Group | Planning submitted | C | 600 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Fife Council (inferred) estimated Grid status: No connection confirmed; no grid assessment complete Note: eWeek 6 Jul 2026; Scottish government considering moratorium on projects without permission. Source 1, checked 21 Oct 2026 | ||||
| Former Ravenscraig steelworks, Motherwell, North Lanarkshire | Apatura | Planning submitted | C | 550 MW |
MW basis: 550MW data centre with 650MW BESS (earlier reports said 500MW) Planning: North Lanarkshire Council estimated Grid status: Apatura CEO says land and grid secured (DCD, June 2025) Note: Sources conflict on whether application was lodged (DCD says filed; Oct 2025 article says consultation ongoing). Target online 2030. Applied for AI Growth Zone status but Lanarkshire AGZ was awarded to DataVita. | ||||
| DC01UK campus, South Mimms / Elstree (M25), Hertfordshire | DC01UK (Chiltern Green Energy / Griggs Homes); sold to Equinix Oct 2025 | Consented estimated | C | 320 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Hertsmere Borough Council Grid status: 400MVA power reservation near Letchmore Heath substation (DCD/TechInformed) Note: Outline permission 23 Jan 2025; detailed plans still required. DCD says 'under construction when acquired' - conflicting with outline-only; stage set to consented (inferred). Operational target 2029. | ||||
| Factory Road, Cambois, Northumberland (former GSK land) | TBC Partners | Enquiry | C | 300 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Northumberland County Council Grid status: On-site substation planned; no grid detail Note: Pre-application: EIA screening opinion requested, article dated 18 Aug 2026. A portal key in the article link may be the screening ref but not confirmed, so left null. Source 1, checked 21 Oct 2026 | ||||
| Wilton International, Teesside | Sembcorp Energy UK (with Digital Reef) | Planning submitted | C | 280 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Redcar and Cleveland Borough Council estimated, 2026/0183/SC estimated Grid status: Private wire network on Wilton site; on-site gas/biomass/waste generation Note: Filed 8 May 2026. LPA and ref inferred from portal URL in DCD article; verify on council portal. Source 1, checked 21 Oct 2026 | ||||
| Manor Farm, Poyle Road, Slough | Manor Farm Propco (Tritax Big Box) | Consented | C | 147 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Slough Borough Council (refused; appeal) Note: Secretary of State allowed the appeal 10 Jun 2026; council had six weeks to challenge (check for legal challenge). Application/appeal refs not in articles. | ||||
| Land north of Ffordd Bro Tathan, St Athan, Vale of Glamorgan, Wales | Vantage (VDC CWL21 Ltd) | Consented | C | 120 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Vale of Glamorgan Council Grid status: Substation included in scheme; no connection detail Note: Permission 'recently granted' per DCD of 8 Aug 2025. A 2022 filing ref 2022/00038/SC1 exists for the site but is not confirmed as this application, so left null. Source 1, checked 21 Oct 2026 | ||||
| Culham Campus, Oxfordshire (AI Growth Zone) | UKAEA / AI Growth Zone; operator not named in source | Enquiry estimated | C | 100 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: South Oxfordshire / Vale of White Horse (South and Vale) - inferred estimated Note: DCD 18 Nov 2025. Stage unclear (described as under development). Council local-plan statements of common ground exist on southandvale.gov.uk but were not opened. Source 1, checked 21 Oct 2026 | ||||
| DataVita Chapelhall campus (DV4), North Lanarkshire AI Growth Zone | DataVita with CoreWeave (HFD Group) | Planning submitted | C | 100 MW |
MW basis: 100MW AI-ready capacity for the AI Growth Zone (DataCentre Review); DV4 MW not stated Planning: North Lanarkshire Council Grid status: Over 1GW renewables via private wire (no grid detail) Note: AGZ named 29 Jan 2026; DV4 planning-permission-in-principle application announced 2 Sep 2026 (awaiting validation). The 100MW figure belongs to the AGZ, not necessarily DV4. | ||||
| Land off Bedmond Road, Abbots Langley, Hertfordshire | Greystoke Land | Consented | C | 96 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Three Rivers District Council (refused Jan 2024; allowed on appeal) Note: Appeal allowed by Deputy PM May 2025 (article 13 May 2025). A Slough Borough Council document search-result titles appeal ref 3346061 but that page was not opened, so lpa_ref left null. Source 1, checked 21 Oct 2026 | ||||
| Didcot A power station site, Oxfordshire | Amazon Web Services | Consented | C | 84 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Vale of White Horse District Council Note: Approved July 2021; build status not verified. Older than 2024. Source 1, checked 21 Oct 2026 | ||||
| NGD campus (ex-LG factory), Newport, Wales | Vantage Data Centers (NGD) | Consented | C | 80 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Newport City Council Note: Older (March 2021 permission); build status not verified. Included as Newport anchor. Source 1, checked 21 Oct 2026 | ||||
| Thames Valley Park, Reading | Not named (Microsoft is current occupier; project team BCS, Arup etc.) | Enquiry | C | 72 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Not stated (site appears to be in Wokingham Borough; unverified) Grid status: Interim on-site gas fuel cells while grid capacity is brought forward Note: Public consultation 7 Jul 2026; early stage. Source 1, checked 21 Oct 2026 | ||||
| Wilton International (former Croda plot), Teesside | Wilton Data Centre (company; end user not named) | Consented | C | 48 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Redcar and Cleveland Borough Council, R/2023/0404/OOM Grid status: Two substation buildings (66kV not confirmed); no capacity stated Note: Outline consent Oct 2023; below 50MW. Ref as given in DCD article, not verified on portal. Source 1, checked 21 Oct 2026 | ||||
| Kao Data campus, Harlow, Essex (KLON7 and KLON8) | Kao Data | Planning submitted | C | not stated |
Planning: Harlow District Council (Local Development Order compliance) Grid status: Substation included in filing; no connection detail Note: DCD 2 Sep 2025; no decision reported. Source 1, checked 21 Oct 2026 | ||||
| Prosperity Parc (Anglesey) and Trawsfynydd, North Wales AI Growth Zone | Stena Line (Prosperity Parc owner, consortium lead); no end customer confirmed | Enquiry | C | not stated |
Planning: Isle of Anglesey County Council / Gwynedd Council (inferred) estimated Grid status: Zone gets priority grid access; no site connection detail Note: AI Growth Zone announced 17 Nov 2025. Stena's earlier concept was a 238,000 sqm GBP1bn data centre, no MW. gov.uk page could not be fetched. Source 1, checked 21 Oct 2026 | ||||
| Teesworks, Redcar (former steelworks) | Teesworks (developer); Google reported in talks, unconfirmed | Consented | C | not stated |
Planning: Redcar and Cleveland Borough Council Note: DCD (15 Sep 2025): permission granted Aug 2025, second detailed application needed. Operator unconfirmed (rumour). Candidate for later AI Growth Zone. Source 1, checked 21 Oct 2026 | ||||
| Hurlford, East Ayrshire | Not stated | Planning submitted estimated | D | 540 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: East Ayrshire Council (inferred) estimated Note: Resultsense 8 Sep 2026 pipeline roundup ('in planning'); same article lists Hunterston, Dunbar, Cockenzie, Haspielaw (no MW) and says Dunoon (600MW) and Irvine (1,000MW) schemes fell away. Source 1, checked 21 Oct 2026 | ||||
| Glenbervie Business Park, Larbert, Falkirk | Apatura (backer reportedly Klint Ventures, unconfirmed) | Planning submitted | D | 300 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Falkirk Council estimated Grid status: Near Denny substation; Apatura cites Gate 2 compliant connections across sites (2.4GW) Note: Futurescot 9 Jun 2026; LPA inferred from 'local council'/Inward Investment team mention. Source 1, checked 21 Oct 2026 | ||||
| Premier Park, Park Royal, west London | Pure Data Centres Group / SEGRO JV | Consented | D | 72 MW |
MW basis: 72MW power capacity Planning: Old Oak and Park Royal Development Corporation Note: Single trade-news source (6 May 2026); construction expected to begin 2026. Decision date and ref not stated. Source 1, checked 21 Oct 2026 | ||||
| Link Park Heathrow, Thorney Mill Road, Iver, Buckinghamshire | Link Park Heathrow | Planning submitted estimated | D | 60 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Buckinghamshire Council and Hillingdon Council (appeal, non-determination) Note: 2023 article: appeal dismissed then High Court found errors; redetermination. Later outcome not verified (related headlines of Jan 2026 exist). Stage is a best guess. Source 1, checked 21 Oct 2026 | ||||
| Loughton, Essex | Nscale | Enquiry estimated | D | 50 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Not stated (Epping Forest District, inferred, not recorded) Note: Baxtel lists it as both planned and under construction, and reports Microsoft ended its anchor agreement on 19 Oct 2026. Single unconfirmed report; verify before use. Source 1, checked 21 Oct 2026 | ||||
| Slough Trading Estate (London19) | Virtus Data Centres (powered shell by SEGRO) | Consented | D | 32.5 MW |
MW basis: not specified (IT load or grid capacity unknown) Planning: Slough Borough Council (inferred; permitted via estate Simplified Planning Zone) estimated Note: Below 50MW threshold; included for Slough coverage. Single source dated 30 Jun 2026. Source 1, checked 21 Oct 2026 | ||||
Projects with demand (import) capacity in the TEC Register file dated 20 Oct 2026: 105. These are rows whose Plant Type includes "Demand"; most are storage or generation sites that also import power. This is not a count of data centres.