Step 4 · Sell
See what it sells for
Price, fill and contract terms, as scenarios.
Markets and operators: who is building where
The pipeline, the grid, the power, the latency and the rules of a market, and the operators building in it. Counts and dated figures, from the tracker and the official sources.
London data centre market
At a glance: London
- Pipeline projects
- 37
- 23 permitted or being built
- Checked 17 Oct 2026
- New grid connections
- Paused
- paused to new connection applications, in force since 30 Jun 2025. United Kingdom-wide, transmission
- Checked 23 Oct 2026
- Wholesale power price
- 94€/MWh
- Day-ahead, 2025 mean, United Kingdom
- Calendar year 2025
- Grid carbon intensity
- 217g CO₂/kWh
- Yearly average, United Kingdom
- Latest full year
- Next national rule date
- 26 Oct 2026
- House of Lords report stage of the United Kingdom’s Cyber Security and Resilience Bill
- Applies in the United Kingdom
- Latency to nearest major hub
- 4.0 ms
- Round trip, London to Paris
- Mapped fibre route, minimum
On 17 October 2026 the pipeline tracker lists 37 data-centre projects around London, and 23 of them are permitted or being built.
The London data centre market in October 2026
The tracker follows 37 data centre projects of 1 MW or more around London, 23 of them permitted or being built. 30 developers are behind them; none has more than 2 projects.
Projects by stage
What the capacity figures measure
Each capacity is on its own stated basis; never added.
Who is building in London
And 20 other developers with one project each; 1 project with no developer named. A joint venture counts once per partner. All operators and developers.
Where the data centres are around London
And 5 other places with one project each.
What changed
12 milestones in the last 90 days; the newest is from Sep 2026.
Power and grid for London
Paused
New grid connections are paused (United Kingdom-wide, transmission, since 30 Jun 2025). Checked 23 Oct 2026. Every country’s grid connections.
Over a year, country level
- Grid carbon, latest full-year average
- 217g CO₂/kWh
- 17th cleanest of 30 countries; 64% renewable or nuclear
- Wholesale power, 2025 average
- 94€/MWh
- 14th cheapest of 30
Climate at London
- Hours a year above 27 °C dry-bulb
- 61h
- mean of 2016 to 2025
- Hours a year above 32 °C dry-bulb
- 4h
- worst year 17 h
- Hours a year above 20 °C wet-bulb
- 45h
- limit for evaporative cooling
Hourly reanalysis at the city’s grid cell, 2016 to 2025.
Annual averages are national, for the latest full year.
Fibre latency from London
| To | Round trip, minimum | Path length | Path |
|---|---|---|---|
| Brussels | 3.5 ms | 357 km | Mapped fibre route |
| Paris | 4.0 ms | 409 km | Mapped fibre route |
| Amsterdam | 4.0 ms | 411 km | Mapped fibre route |
| Dublin | 5.2 ms | 529 km | Mapped fibre route |
| Frankfurt | 7.0 ms | 712 km | Mapped fibre route |
| Zurich | 8.8 ms | 900 km | Mapped fibre route |
| Munich | 10.0 ms | 1,017 km | Mapped fibre route |
Floors for light in fibre, city centre to city centre; operator fibre adds to this.
Rules and dates
Next dates
- 26 Oct 2026House of Lords report stage of the United Kingdom’s Cyber Security and Resilience Bill, which would regulate data centres from 1 MW rated IT load
- 1 Jan 2027the United Kingdom’s amended Climate Change Agreements regulations come into force and cover data facilities with an electricity supply of at least 200 kW
Formal refusals and bans since 2025
No area-wide rule recorded for London.
Decisions from 1 Jan 2025; statuses checked 21 Oct 2026. A market with none recorded is not a low risk market.
Projects of 1 MW or more, announced to under construction, not yet fully operating; a metro includes its region. Capacities are never added, and no project is listed. Grid: new-connection status from the grid connection tracker. Over a year: national averages, latest full year. Latency: light in fibre over the mapped land route, else the straight line. Sources, 11 official bodies, checked 23 October 2026: Copernicus Climate Change Service (ERA5), Department for Energy Security and Net Zero, GOV.UK, London Assembly Planning and Regeneration Committee, London Borough of Havering, NESO, Ofgem, Old Oak and Park Royal Development Corporation, Planning Inspectorate, Slough Borough Council, Thurrock Council.