London data-centre planning approvals

The verified historical share of comparable, substantive London data-centre applications receiving a favourable planning decision.

Out of 100

Q4 2024

14 of 16 resolved applications were approved.

Historical approval rate

Mature trailing 24-month cohorts · updated quarterly

Hover or tap the line · click numbered explanations

Up 9.4% over the last year

+7.5 index points · versus Q4 2023

This is a small historical planning sample, with a likely range of roughly 64%–97%. It does not measure construction, power connection or operational delivery. Markers are limited to real-world explanations supported by project or policy evidence; likely contributors are labelled separately.

Market context

Demand is large. Delivery remains uncertain.

London's data-centre market has strong demand and a substantial connection queue, but planning approval is only one gate. Power, construction and customer delivery must be verified separately.

Operating London sites

City Hall market snapshot, June 2026

760 MW

Current peak demand

City Hall market snapshot, June 2026

8+ GW

Connection queue

More than ten times current demand

1,289 MW

Reported secured capacity

Site, permission and power reported secured

Underlying evidence

Current projects being monitored

One row represents one real project, rather than every planning document. This is a transparent public watchlist, not yet a complete London delivery population.

East Havering Data Centre Campus

North Ockendon · Havering

Pre-consent

600 MW announced; a long phased build remains subject to approval.

Source

Heathrow Estate Data Centre

Silver Jubilee Way · Hounslow

Committee approved

48 MW IT load. Operator, detailed design and power delivery remain outstanding.

Source

Former Honey Monster Factory

Southall · Ealing

Committee approved

Granted subject to conditions, a Section 106 agreement and Stage 2 mayoral referral.

Source

Hayes Bridge Data Centre Campus

Uxbridge Road · Hillingdon

Details pending

Main hybrid permission exists; Phase 2 details and technical conditions remain under review.

Source

Premier Park Road Data Centre

Park Royal · OPDC

Permission granted

Construction, environmental and fibre-condition details are still being discharged.

Source

Method

How to read this benchmark

Include full, outline and reserved-matters applications with a recorded final decision.
Exclude consultations, condition discharges, amendments, adverts and administrative records.
Use mature trailing 24-month cohorts and publish quarterly so overlapping monthly observations are not presented as independent evidence.
Keep planning approval separate from later construction, electricity connection and operational delivery.