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CyrusOne LON4 Slough Data Center

PRJ-0832 · Site · Slough, England, United Kingdom

Record last updated Oct 28, 2026

Scope and capacity

CyrusOne LON4 Slough Data Center, also known as CyrusOne LON4, is a data center project in Slough, England, GB associated with CyrusOne. Purpose-built two-floor facility; 9,526 square metres of technical space; 18 MW IT capacity. West London facility with 27 MVA active-active supply, closed-loop cooling and layered security.

Headline: 18 MW Planned critical IT

Numbers refer to their stated physical boundaries and are not added together. Source dates, claim dates and record updates have different meanings. Missing dates and locators are not inferred.

Location context · CyrusOne LON4 | Slough | England | GB

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 61875 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Lifecycle status · Operational

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 61876 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Reported capacity · 18 MW

Design · CyrusOne LON4 Slough Data Center (Project)

Claim 61877 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Capacity basis · CyrusOne describes LON4 as delivering 18 MW of IT capacity.

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 61878 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Location context · CyrusOne LON4 | Slough | England | GB

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97165 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Lifecycle status · Operating

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97166 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Reported capacity · 18 MW

Planned / design or future potential · CyrusOne LON4 Slough Data Center (Project)

Claim 97167 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Separate claim, not added to the headline

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Capacity basis · 18 MW facility or campus design capacity.

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97168 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne LON4 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3444 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/london-uk-lon4

Project boundary · CyrusOne LON4

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97170 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne London 4/5 environmental permit EPR/EP3508PS/A001

    UK Environment Agency · Document date: May 17, 2022 · Primary

    Source reference: SRC-5341 · Government record · Recorded authority: Official primary

    Source URL

    https://www.gov.uk/government/publications/sl1-4aa-cyrusone-uk4-limited-environmental-permit-issued-eprep3508psa001

Location context · Slough, England, GB

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97171 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne London 4/5 environmental permit EPR/EP3508PS/A001

    UK Environment Agency · Document date: May 17, 2022 · Primary

    Source reference: SRC-5341 · Government record · Recorded authority: Official primary

    Source URL

    https://www.gov.uk/government/publications/sl1-4aa-cyrusone-uk4-limited-environmental-permit-issued-eprep3508psa001

Lifecycle status · Operating

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97172 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne London 4/5 environmental permit EPR/EP3508PS/A001

    UK Environment Agency · Document date: May 17, 2022 · Primary

    Source reference: SRC-5341 · Government record · Recorded authority: Official primary

    Source URL

    https://www.gov.uk/government/publications/sl1-4aa-cyrusone-uk4-limited-environmental-permit-issued-eprep3508psa001

Development detail · Purpose built two floor facility; 9,526 square metres of technical space; 18 MW IT capacity.

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97173 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne London 4/5 environmental permit EPR/EP3508PS/A001

    UK Environment Agency · Document date: May 17, 2022 · Primary

    Source reference: SRC-5341 · Government record · Recorded authority: Official primary

    Source URL

    https://www.gov.uk/government/publications/sl1-4aa-cyrusone-uk4-limited-environmental-permit-issued-eprep3508psa001

Capacity basis · 18 MW facility or campus design capacity.

Actual · CyrusOne LON4 Slough Data Center (Project)

Claim 97174 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne London 4/5 environmental permit EPR/EP3508PS/A001

    UK Environment Agency · Document date: May 17, 2022 · Primary

    Source reference: SRC-5341 · Government record · Recorded authority: Official primary

    Source URL

    https://www.gov.uk/government/publications/sl1-4aa-cyrusone-uk4-limited-environmental-permit-issued-eprep3508psa001

Counterparties and capital

CyrusOne · Developer · CMP-0172

This schedule captures public Cartis research. It is not a title, lien or legal-opinion report. Document page/section locators and claim review timestamps are included only when published; this version has no separate locator or claim-review-time feed.