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CARTIS

Colt Tokyo Yoshikawa Data Centre

Yoshikawa, Saitama, JapanPreconstruction
Evidence
Planned critical IT
80 MW
Updated
Oct 28, 2026

Colt’s Yoshikawa project is a two-building, 9.5-acre Saitama development designed for 80 MW once fully operational. The first-building and second-building records remain phases of this campus, not separate Cartis projects. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.

Capacity

Reported capacity

Design

80 MW

Source

Reported capacity

Planned / design or future potential

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

Development, permitting and phased deliveryAnnounced or preconstruction

Colt’s Yoshikawa project is a two-building, 9.5-acre Saitama development designed for 80 MW once fully operational. The first-building and second-building records remain phases of this campus, not separate Cartis projects. Tenant utilization, contract pricing and undisclosed project financing remain outside the verified public record.

Milestones (1)
Second building is listed as a future phase

2030 · Forecast / planned record

Forecast · Forecast completion

Source not linked

Participants

Colt Data Centre Services

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

Colt Yoshikawa | Yoshikawa | Saitama | JP

Source

Location context

Actual

Colt Yoshikawa | Yoshikawa | Saitama | JP

Source

Project location

Actual

Yoshikawa, Saitama, JP

Source

Site area

Actual

9.5 acres

Source

Building count

Design

2 buildings

Source

Additional project facts

Lifecycle status

Actual

Preconstruction

Source

Capacity basis

Actual

Colt Data Centre Services publishes 80 MW of IT power for this project boundary.

Source

Lifecycle status

Actual

Preconstruction

Source

Capacity basis

Actual

80 MW is the published future facility or full build IT boundary; it is not operating load.

Source

Operator confirmed

Actual

Colt Data Centre Services

Source

Current lifecycle

Actual

Under development

Source

Capacity classification

Actual

Future potential

Source

Capacity basis

Actual

80 MW is the published future facility or full build IT boundary; it is not operating load.

Source

Customer utilization

Actual

Not publicly disclosed

Source

Identity boundary

Actual

This facility or named campus is tracked separately from adjacent buildings and broader operator portfolios

Source

Source refresh date

Actual

2026-08-29

Source

Infrastructure & permits

Technical details (3)
Electric grid

Planned or represented

80 MW

80 MW is the published future facility or full-build IT boundary; it is not operating load.

Fiber

Planned or represented

Carrier-neutral or resilient fibre connectivity is described for the individual facility.

Cooling system

Planned or represented

Cooling architecture supports the stated lifecycle; actual tenant draw and instantaneous load remain undisclosed.

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