Shared participant: Colt Data Centre ServicesSame market: England, United Kingdom
All records
Data center siteSite record
Colt London North Data Centre
Welwyn Garden City, England, United KingdomOperating / Stabilized
Capacity
35 MW
Planned critical IT
Lead participant
Colt Data Centre Services
Developer
Last updated
Aug 28, 2026
Most recent public record update
About Colt London North Data Centre
Colt London North is the operating Welwyn Garden City facility, not a Hayes campus phase. The 35 MW operator boundary is supported by independently documented utility and fibre infrastructure and is not treated as measured utilization. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.
Related projects
Projects sharing a market, utility, or organization.
Shared participant: Colt Data Centre ServicesSame market: England, United Kingdom
Site · Shared context
Colt London 6, 7 and 8 Data Centres
Preconstruction · Hayes, England, United Kingdom
Shared participant: Colt Data Centre ServicesSame market: England, United Kingdom
Capacity
Planned critical ITOperating capacity—An operating IT-capacity figure has not been publicly disclosed.
It Load35 MWDesign · Colt London North Data Centre
It Load35 MWDesign · Colt London North Data Centre
Development
1 phases · 1 milestonesOperating facility and documented expansionOperational
Colt London North is the operating Welwyn Garden City facility, not a Hayes campus phase. The 35 MW operator boundary is supported by independently documented utility and fibre infrastructure and is not treated as measured utilization. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.
Aug 29, 2026
Project-specific source review refreshed
CompletedInfrastructure
Electric GridOperational
35 MW
35 MW is the operator-published facility IT-load boundary; it is not measured customer utilization.
FiberOperational
Carrier-neutral or resilient fibre connectivity is described for the individual facility.
Cooling SystemOperational
Cooling architecture supports the stated lifecycle; actual tenant draw and instantaneous load remain undisclosed.
Project map
0 of 1 project point mappedInfrastructure facts
3
Mapped records
1
Capacity figures
1
No map point available
Power & interconnection: 1Cooling & water: 1Fiber & connectivity: 1
Facts & sources
Published claims and their source links.
Location ContextColt London North | Welwyn Garden City | England | GBActual
Colt London North | Welwyn Garden City | England | GB
Lifecycle StatusOperatingActual
Operating
Reported Capacity35 MWDesign
35 MW
Capacity BasisColt Data Centre Services publishes 35 MW of IT power for this project boundary.Actual
Colt Data Centre Services publishes 35 MW of IT power for this project boundary.
Location ContextColt London North | Welwyn Garden City | England | GBActual
Colt London North | Welwyn Garden City | England | GB
Lifecycle StatusOperatingActual
Operating
Reported Capacity35 MWDesign
35 MW
Capacity Basis35 MW is the operator published facility IT-load boundary; it is not measured customer utilization.Actual
35 MW is the operator published facility IT-load boundary; it is not measured customer utilization.
Operator ConfirmedColt Data Centre ServicesActual
Colt Data Centre Services
Project LocationWelwyn Garden City, England, GBActual
Welwyn Garden City, England, GB
Current LifecycleOperatingActual
Operating
Capacity ClassificationIt loadActual
It load
Capacity Basis35 MW is the operator published facility IT-load boundary; it is not measured customer utilization.Actual
35 MW is the operator published facility IT-load boundary; it is not measured customer utilization.
Customer UtilizationNot publicly disclosedActual
Not publicly disclosed
Identity BoundaryThis facility or named campus is tracked separately from adjacent buildings and broader operator portfoliosActual
This facility or named campus is tracked separately from adjacent buildings and broader operator portfolios
Source Refresh Date2026-08-29Actual
2026-08-29
Gross Technical Area21,339 square metresActual
21,339 square metres
Onsite Substations2 substationsActual
2 substations