Projects · Data Centres
Kao Data campus, Harlow, Essex·In developmentData Centres
Kao Data Harlow campus expansion (KLON-03/04)
- StageKLON-03 (17.6MW) announced Mar 2025; two further buildings planned (Sep 2025); Nebius 22MW ten-year lease signed
- Next milestoneConstruction of KLON-03 and planning for further buildings
- Last checked1 November 2026
What has changed on this project, and when
- Next milestone: Construction of KLON-03 and planning for further buildings2 November 2026 · previously: KLON-03 energisation; KLON-04 consent
- Stage: KLON-03 (17.6MW) announced Mar 2025; two further buildings planned (Sep 2025); Nebius 22MW ten-year lease signed2 November 2026 · previously: KLON-03 under construction; further phases in planning
- Status: In development2 November 2026 · previously: Under way
- Value: Not disclosed2 November 2026 · previously: £1.7bn (Nebius UK deployment)
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