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CyrusOne MIL1 Milan Data Center Campus

PRJ-0830 · Site · Segrate, Lombardy, Italy

Record last updated Oct 28, 2026

Scope and capacity

CyrusOne announced groundbreaking at MIL1 on March 25, 2026. Its current project page targets the first phase for the third quarter of 2027; planned campus capacity is not operating capacity. CyrusOne MIL1 Milan Data Center Campus, also known as CyrusOne MIL1, is a data center project in Segrate, Lombardy, IT associated with CyrusOne. 18.5-acre site; one three-story building; three 9 MW data halls; 9,000 square metres; 27 MW initial IT capacity. East Milan development with free-cooling, renewable-energy design, heat recovery and phased delivery. The earlier 27 MW figure describes the initial three-hall building scope, not the full campus plan.

Headline: 27 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 MIL1 | Segrate | Lombardy | IT

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 61867 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Lifecycle status · Construction

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 61868 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Reported capacity · 27 MW

Design · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 61869 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Capacity basis · CyrusOne publishes 27 MW of critical IT capacity for this record boundary.

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 61870 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Location context · CyrusOne MIL1 | Segrate | Lombardy | IT

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97145 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Lifecycle status · Construction

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97146 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Reported capacity · 27 MW

Planned / design or future potential · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97147 · Recorded claim type: Design · Review: Approved · Claim date: Not stated

Headline treatment: Separate claim, not added to the headline

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Capacity basis · 27 MW is the operator published future facility or full build design boundary.

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97148 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne CyrusOne MIL1 profile

    CyrusOne · Document date: Aug 27, 2026 · Primary

    Source reference: SRC-3442 · Fact sheet · Recorded authority: Official primary

    Source URL

    https://www.cyrusone.com/data-centers/emea/milan-italy

Project boundary · CyrusOne MIL1

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97150 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne data center VAS exclusion decree, PDCC 11/24

    Comune di Segrate · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-5338 · Government record · Recorded authority: Official primary

    Source URL

    https://www.comune.segrate.mi.it/novita/notizie/dettaglio/Pubblicazione-Decreto-Esclusione-VAS-PDCC-11-24-in-merito-alla-realizzazione-del-Data-Center-Cyrus-one/

Location context · Segrate, Lombardy, IT

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97151 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne data center VAS exclusion decree, PDCC 11/24

    Comune di Segrate · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-5338 · Government record · Recorded authority: Official primary

    Source URL

    https://www.comune.segrate.mi.it/novita/notizie/dettaglio/Pubblicazione-Decreto-Esclusione-VAS-PDCC-11-24-in-merito-alla-realizzazione-del-Data-Center-Cyrus-one/

Lifecycle status · Construction

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97152 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne data center VAS exclusion decree, PDCC 11/24

    Comune di Segrate · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-5338 · Government record · Recorded authority: Official primary

    Source URL

    https://www.comune.segrate.mi.it/novita/notizie/dettaglio/Pubblicazione-Decreto-Esclusione-VAS-PDCC-11-24-in-merito-alla-realizzazione-del-Data-Center-Cyrus-one/

Development detail · 18.5-Acre site; one three story building; three 9 MW data halls; 9,000 square metres; 27 MW initial IT capacity.

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97153 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne data center VAS exclusion decree, PDCC 11/24

    Comune di Segrate · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-5338 · Government record · Recorded authority: Official primary

    Source URL

    https://www.comune.segrate.mi.it/novita/notizie/dettaglio/Pubblicazione-Decreto-Esclusione-VAS-PDCC-11-24-in-merito-alla-realizzazione-del-Data-Center-Cyrus-one/

Capacity basis · 27 MW is the operator published future facility or full build design boundary.

Actual · CyrusOne MIL1 Milan Data Center Campus (Project)

Claim 97154 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. CyrusOne data center VAS exclusion decree, PDCC 11/24

    Comune di Segrate · Document date: Aug 29, 2026 · Primary

    Source reference: SRC-5338 · Government record · Recorded authority: Official primary

    Source URL

    https://www.comune.segrate.mi.it/novita/notizie/dettaglio/Pubblicazione-Decreto-Esclusione-VAS-PDCC-11-24-in-merito-alla-realizzazione-del-Data-Center-Cyrus-one/

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.