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DayOne Fuchu Tokyo Campus

PRJ-0589 · Site · Fuchu / Kodaira, Tokyo, Japan

Record last updated Oct 28, 2026

Scope and capacity

DayOne and Gaw Capital broke ground on Phase One of their Tokyo campus in August 2025. Phase One is planned for 18 MW of IT load; the current two-site campus page presents an 80 MW envelope and 2028 RFS.

Headline: 80 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.

Current status · Under construction

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53317 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Corroborating

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

  2. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Phase one groundbreaking · 2025-08-01

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53318 · Recorded claim type: Actual · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Phase one IT capacity · 18 MW IT

Planned / design or future potential · DayOne Fuchu Tokyo Campus (Project)

Claim 53319 · Recorded claim type: Design · Review: Approved · Claim date: Aug 1, 2025

Headline treatment: Separate claim, not added to the headline

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Phase one story count · 9 stories

Design · DayOne Fuchu Tokyo Campus (Project)

Claim 53320 · Recorded claim type: Design · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Phase one data halls · 10 data halls

Design · DayOne Fuchu Tokyo Campus (Project)

Claim 53321 · Recorded claim type: Design · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Phase one core shell target · Mid-2027

Forecast · DayOne Fuchu Tokyo Campus (Project)

Claim 53322 · Recorded claim type: Forecast · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Current campus IT capacity · 80 MW IT

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53324 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

Headline treatment: Selected headline

  1. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Current rfs target · 2,028

Forecast · DayOne Fuchu Tokyo Campus (Project)

Claim 53326 · Recorded claim type: Forecast · Review: Approved · Claim date: Not stated

  1. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Current gross floor area · 66,360 square metres

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53327 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Current site count · 2 sites

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53329 · Recorded claim type: Actual · Review: Approved · Claim date: Not stated

  1. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Architect · NEC Facilities

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53331 · Recorded claim type: Actual · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Main contractor · HASEKO Corporation

Actual · DayOne Fuchu Tokyo Campus (Project)

Claim 53332 · Recorded claim type: Actual · Review: Approved · Claim date: Aug 1, 2025

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Primary

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

Certification targets · CASBEE, LEED and ISO 50001

Forecast · DayOne Fuchu Tokyo Campus (Project)

Claim 53333 · Recorded claim type: Forecast · Review: Approved · Claim date: Not stated

  1. DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus

    DayOne Data Centers · Document date: Aug 1, 2025 · Corroborating

    Source reference: SRC-2880 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/markets/dayone-and-gaw-capital-break-ground-on-phase-one-of-hyperscale-tokyo-data-center-campus

  2. Tokyo data center campus

    DayOne Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2879 · Fact sheet · Recorded authority: Party primary

    Source URL

    https://dayonedc.com/market/tokyo

Counterparties and capital

DayOne Data Centers · Operator · CMP-0071

Gaw Capital Partners · Investor · CMP-1366

HASEKO Corporation · Contractor · CMP-1368

NEC Facilities · Contractor · CMP-1367

Investment commitment

$4,500,000,000 · Jun 5, 2026

Platform financing supporting multiple markets including Japan; no Fuchu allocation.

DayOne Data Centers (Sponsor)

Sources (1)

Financing record 170; claim-specific source links appear in the exhibit sources where published.

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.