DC01UK South Mimms Data Center Campus
- Planned / design
- 250 MW
- Updated
- Oct 28, 2026
DC01UK has planning approval for a major data center campus near South Mimms, Hertfordshire. Equinix acquired the project, whose economic study describes approximately 250 MW of capacity and 400 MVA of reserved power. Equinix, DC01UK is associated with the development in South Mimms, Hertsmere, England, GB. The disclosed development scope includes planning approved; approximately 250 MW design; 400 MVA reserved power; acquired by Equinix. Power and physical infrastructure include reserved grid power and a multi-building campus design. The official Hertsmere economic study describes about 250 MW of project capacity.
Capacity
Operating IT capacity: Not established in published records
A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.
Development
Project-wide phase for DC01UK South Mimms Data Center Campus; capacity class is design.
Milestones (2)
Jan 1, 2026 · Recorded actual event
Completed · Announced
Source not linkedDate not disclosed · Forecast / planned record
Forecast · Forecast completion
Source not linkedParticipants
Site & development
Technical specifications
Additional project facts
Infrastructure & permits
Technical details (2)
Planned or represented
250 MW
The official Hertsmere economic study describes about 250 MW of project capacity.
Planned or represented
Reserved grid power and a multi-building campus design.
Project map
Other · Issued
DC01UK South Mimms Data Center Campus
Hertsmere Borough Council
Jan 23, 2025
Sources (2)
- Hertsmere Economic Study 2026 · Jan 1, 2026 · Primary
- South Mimms outline planning approval · Jan 24, 2025 · Corroborating
Public-source research. Plans may change. See Evidence for sources and qualifications.