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Microsoft Markham Data Center

Markham, Ontario, CanadaPreconstruction
Evidence
Headline capacity
Not established in published records
Updated
Oct 28, 2026

Microsoft is preparing a data center site in Markham, Ontario. Site work began in May 2024, the first building is expected to enter construction in late 2026, and a second-building update is scheduled separately.

Capacity

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 programAnnounced or preconstruction

Microsoft Markham Data Center: Preconstruction.

Milestones (2)
Microsoft Markham Data Center: Site preparation underway; building construction expected from late 2026.

Aug 1, 2026 · Event timing type not established

In progress · Announced

Source not linked
Microsoft Markham Data Center — Preconstruction

Date not disclosed · Event timing type not established

In progress · Status changed

Source not linked

Participants

Microsoft

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

Microsoft data center site | Markham | Ontario | Canada

Source

Additional project facts

Lifecycle status

Actual

Preconstruction

Source

Infrastructure & permits

Technical details (2)
Electric grid

Planned or represented

Site preparation and community-construction planning are underway.

Site facility

Planned or represented

Site preparation and community-construction planning are underway.

Building · Issued

Microsoft Markham Data Center

City of Markham

Jan 1, 2026

Sources (2)

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