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DC01UK, South Mimms
DC01UK
South Mimms, South EastApprovedData centreCapacity not published Verified — 1 source on file
Outline permission only. The council cites 87,000 sq m of floorspace; no IT-load or grid-connection figure has been verified. The developer states the site was sold to Equinix in October 2025, which has not been verified from a regulatory filing.
Project detail
- Operator / developer
- DC01UK
- Location
- South Mimms, South East, United Kingdom
- Status
- Approved
- AI relevance
- Not stated
- Announced
- Not published
- Target live date
- Not published
- Published capacity
- Not published. No capacity figure means none has been published — it does not mean zero.
- Floor area
- Not published
- Stated investment
- Not published
- Power
- No IT load or electrical demand figure has been published. The developer states a power reservation of 400 MVA from the transmission network via the Elstree (Letchmore Heath) substation, with connection expected in 2029. MVA measures apparent power and is not directly equivalent to MW, so no capacity figure is recorded here.
- Grid connection
- Not published
- Cooling
- Not published
- Water
- Not published
- Planning authority
- Hertsmere Borough Council
- Planning reference
- Not published
- Planning decision
- Outline planning permission granted by planning committee
- Decision date
- 2025-01-23
- Construction start
- Not published
- Expected completion
- Not published
- Operational since
- Not published
- Confidence
- Medium confidence
- Last verified
- 2026-08-18
Sources
- Data centre in Hertsmere given outline permission by planning committee
Secondary source · Hertsmere Borough Council · 2025-01-23
Entry last updated 18/08/2026. Spotted something wrong? Tell us.
South East in context
See every tracked project in South East, the capacity that has been disclosed there and how it connects to wider UK demand.