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CyrusOne DFW3–DFW5 Allen Data Center Campus

Allen, Texas, United StatesPartially operational
Evidence
Planned critical IT
77 MW
Updated
Oct 28, 2026

CyrusOne DFW3–DFW5 Allen Data Center Campus, also known as CyrusOne Allen Campus, is a partially operational data center campus in Allen, TX, US associated with CyrusOne. More than 90 acres; DFW3–DFW5; 976,000 square feet at full build; 50 MW total IT capacity. Large North Texas campus with water-free cooling, renewable electricity and multilayer physical security. Available incentive or entitlement information remains subject to the applicable agreement terms and performance conditions.

Capacity

Reported capacity

Design

77 MW

Source

Reported capacity

Planned / design or future potential

77 MW

Source

Reported capacity

Planned / design or future potential

50 MW

Source

Campus IT design

Planned / design or future potential

50 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

Operating facility and documented expansionPartially operational

77 MW is the operator-published facility or campus design boundary.

Operating facility and documented expansionPartially operational

50 MW is the operator-published facility or campus IT design boundary.

Milestones (1)
Allen site plan distinguishes DFW3, DFW4 and future DFW5

Jan 1, 2025 · Recorded actual event

Completed · Status changed

Source not linked

Participants

CyrusOne

Developer

Sources by role
Developer (1)

Site & development

Location context

Actual

CyrusOne DFW3–DFW5 | Allen | TX | US

Source

Location context

Actual

CyrusOne DFW3–DFW5 | Allen | TX | US

Source

Campus area

Actual

90 acres

Source

Full build area

Forecast

976,000 square feet

Source

Onsite substation

Design

1 substation

Source

Location context

Actual

CyrusOne Allen Campus | Allen | TX | US

Source

Site area

Actual

90+ acres

Source

Full build area

Design

976,000 square feet

Source

Permitted shell area

Design

126,000 square feet

Source

Additional project facts

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

CyrusOne publishes 77 MW of critical IT capacity for this record boundary.

Source

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

77 MW facility or campus design capacity.

Source

Dfw5 status

Forecast

Future landbank

Source

Lifecycle status

Actual

Partially operational

Source

Capacity basis

Actual

50 MW facility or campus IT design capacity.

Source

Infrastructure & permits

Technical details (4)
Electric grid

Energized

Purpose-built high-efficiency campus with water-free cooling, renewable-power sourcing and multilayer physical security.

Cooling system

Operational

CyrusOne describes closed-loop or air-cooled systems; the profile does not infer facility water use beyond the cited site specification.

Electric grid

Energized

Large North Texas campus with water-free cooling, renewable electricity and multilayer physical security.

Cooling system

Operational

Cooling and efficiency claims remain limited to source-defined designs; no delivered load or water use is inferred.

Building · Issued

CyrusOne Allen

City of Allen

Jan 31, 2024

Sources (1)
Other · Issued

CyrusOne Allen DFW3–DFW5 campus

City of Allen

Jan 1, 2025

Sources (1)

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

Related projects (4)
CyrusOne AUS2–AUS3 Austin Data Center Campus

Partially operational · Austin, Texas, United States

Shared participant: CyrusOne · Same market: Texas, United States

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CyrusOne Bosque Powered Campus

Under construction · Whitney / Clifton, Texas, United States

Shared participant: CyrusOne · Same market: Texas, United States

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CyrusOne DFW1 Carrollton Data Center

Partially operational · Carrollton, Texas, United States

Shared participant: CyrusOne · Same market: Texas, United States

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CyrusOne DFW2 Lewisville Data Center

Partially operational · Lewisville, Texas, United States

Shared participant: CyrusOne · Same market: Texas, United States

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