All records
Data center siteSite record
DayOne Fuchu Tokyo Campus
Fuchu / Kodaira, Tokyo, 13, JapanUnder construction
Capacity
80 MW
Planned critical IT
Lead participant
DayOne Data Centers
Operator
Last updated
Aug 26, 2026
Most recent public record update
About DayOne Fuchu Tokyo Campus
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
Planned critical ITOperating capacity—An operating IT-capacity figure has not been publicly disclosed.
Design18 MWDesign · DayOne Fuchu Tokyo Campus
It Load40 MWActual · DayOne Fuchu Tokyo Campus
It Load80 MWActual · DayOne Fuchu Tokyo Campus
Development
3 phases · 7 milestonesHistorical two-site FIP planChanged Or Cancelled
Superseded by current 80 MW, 2028 package; not achieved.
Fuchu Phase OneUnder Construction
Nine-story building with ten data halls; core-and-shell target mid-2027.
1 building
Current FIP and Kodaira campusUnder Construction
66,360 m² gross floor area; two-site boundary needs parcel reconciliation.
Apr 6, 2022
Gaw acquires Fuchu Phase II property
CompletedApr 2, 2024
GDS and Gaw announce 40 MW FIP project
CompletedMay 27, 2024
Gaw adds planned Phase III property
CompletedJan 1, 2025
GDS International launches as DayOne
CompletedAug 1, 2025
DayOne and Gaw break ground
CompletedJan 1, 2027
Phase One core-and-shell target
ForecastJan 1, 2028
Current two-site campus target
ForecastInfrastructure
Electric GridReported Context
40 MW IT
Original two-site FIP envelope; superseded by current 80 MW package.
Electric GridUnder Construction
18 MW IT
Phase One planned IT load; not operating capacity.
Electric GridUnder Construction
80 MW IT
Current two-site full-campus envelope; not live load.
Cooling SystemPlanned Or Represented
advanced cooling; planned design.
Project map
0 of 1 project point mappedInfrastructure facts
4
Mapped records
1
Capacity figures
3
No map point available
Power & interconnection: 3Cooling & water: 1
Facts & sources
Published claims and their source links.
Current StatusUnder constructionActual
Under construction
Phase One Groundbreaking2025-08-01Actual
2025-08-01
Phase One It Capacity18 MW ITDesign
18 MW IT
Phase One Story Count9 storiesDesign
9 stories
Phase One Data Halls10 data hallsDesign
10 data halls
Phase One Core Shell TargetMid-2027Forecast
Mid-2027
Historical Campus It Capacity40 MW ITActual
40 MW IT
Current Campus It Capacity80 MW ITActual
80 MW IT
Current Rfs Target2,028Forecast
2,028
Current Gross Floor Area66,360 square metresActual
66,360 square metres
Current Site Count2 sitesActual
2 sites
ArchitectNEC FacilitiesActual
NEC Facilities
Main ContractorHASEKO CorporationActual
HASEKO Corporation
Certification TargetsCASBEE, LEED and ISO 50001Forecast
CASBEE, LEED and ISO 50001