DayOne Fuchu Tokyo Campus

Fuchu / Kodaira, Tokyo, JapanUnder construction

Planned critical IT: 80 MW
Updated: Oct 28, 2026

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.

Capacity

Phase one IT capacity

Planned / design or future potential

18 MW

Source

Current campus IT capacity

Actual

80 MW

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Historical two-site FIP planChanged or cancelled

Superseded by current 80 MW, 2028 package; not achieved.

Fuchu Phase OneUnder construction

1 building

Nine-story building with ten data halls; core-and-shell target mid-2027.

Current FIP and Kodaira campusUnder construction

66,360 m² gross floor area; two-site boundary needs parcel reconciliation.

Milestones (7)

Gaw acquires Fuchu Phase II property

Apr 6, 2022 · Recorded actual event

Completed · Status changed

Source not linked

GDS and Gaw announce 40 MW FIP project

Apr 2, 2024 · Recorded actual event

Completed · Announced

Source not linked

Gaw adds planned Phase III property

May 27, 2024 · Recorded actual event

Completed · Status changed

Source not linked

GDS International launches as DayOne

Jan 1, 2025 · Recorded actual event

Completed · Status changed

Source not linked

DayOne and Gaw break ground

Aug 1, 2025 · Recorded actual event

Completed · Construction started

Source not linked

Phase One core-and-shell target

2027 · Forecast / planned record

Forecast · Forecast completion

Source not linked

Current two-site campus target

2028 · Forecast / planned record

Forecast · Forecast completion

Source not linked

Participants

DayOne Data Centers

Operator

Sources by role

Operator (1)

DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus · Aug 1, 2025 · Corroborating

Operator (1)

Official launch of DayOne Data Centers · Jan 1, 2025 · Corroborating

Operator (1)

Tokyo data center campus · Primary

Gaw Capital Partners

Investor

Sources by role

Investor (1)

DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus · Aug 1, 2025 · Primary

Investor (1)

Gaw Capital expands data center portfolio with acquisition in Fuchu Intelligent Park · May 27, 2024 · Corroborating

Investor (1)

GDS enters Japan in partnership with Gaw Capital to build 40MW Tokyo project · Apr 2, 2024 · Corroborating

Investor (1)

Gaw Capital completes acquisition of a property in Fuchu Intelligent Park · Apr 6, 2022 · Corroborating

Other participants (2)

HASEKO Corporation

Contractor

Sources by role

Contractor (1)

DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus · Aug 1, 2025 · Primary

NEC Facilities

Contractor

Sources by role

Contractor (1)

DayOne and Gaw Capital break ground on Phase One of hyperscale Tokyo data center campus · Aug 1, 2025 · Primary

Capital & incentives

Financing records

Investment commitment

$4.5bn

Jun 5, 2026

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

Parties & sources

DayOne Data Centers (Sponsor)

Sources (1)

DayOne announces final closing of Series C equity financing at US$4.5 billion · Jun 5, 2026

Site & development

Current gross floor area

Actual

66,360 square metres

Source

Current site count

Actual

Technical details (4)

Electric grid

Reported context

40 MW IT

Original two-site FIP envelope; superseded by current 80 MW package.

Electric grid

Under construction

18 MW IT

Phase One planned IT load; not operating capacity.

Electric grid

Under construction

80 MW IT

Current two-site full-campus envelope; not live load.

Cooling system

Planned or represented

advanced cooling; planned design.

Public-source research. Plans may change. See Evidence for sources and qualifications.