Data Center Registry

CyrusOne DFW3-DFW5 (Allen)

Allen, Collin County, Texas · All 35 CyrusOne sites · Every CyrusOne case on our tracker

OperatingNo reception on recordAI likelyRecord updated September 21, 2026

CyrusOne DFW3-DFW5 (Allen) is an operating data center in Allen, Texas (Collin County), operated by CyrusOne. The public record puts it at 50 MW planned, 90 acres.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Operating

Operator: CyrusOne
Facility type: Data center, AI use likely
Location: Allen, Collin County, TX
Coordinates: 33.1385, -96.6600
Power capacity: 77 MW operating; 50 MW planned
Land: 90 acres
Investment: Not established from a public source
Announced: Not established from a public source
Utility: Oncor
Power source: Mixed
Cooling: Closed loop
Water use: Not established from a public source
Jobs: Not established from a public source
Public subsidy: Not established from a public source
Community reception: No reception on record
Source confidence: Reported by at least one credible outlet or filing

Opposition and litigation at this site

Nothing on record as of September 21, 2026. No lawsuit, organized opposition, or contested hearing over CyrusOne DFW3-DFW5 (Allen) in Allen, Collin County, Texas appears in the sources this registry tracks. That is an absence in our sources rather than a finding that none exists, and local opposition often predates any coverage a national dataset would pick up.

If you live near this site and something is happening that this page does not show, that is worth telling us. Send us the document and it goes in the record with the source attached. For sites where opposition is already established, see every contested site we track.

Power and water

CyrusOne signed a 40MW wind+solar PPA with Gexa Energy (announced April 2022) explicitly covering its North Texas data centers, naming Allen, Carrollton, and Lewisville as the sites the purchase powers.

Notes on the record

Confirmed 90-acre, 3-building, 50MW campus at Allen, TX (largest DC development in the state per operator page). AI/HPC (likely): Allen campus marketed for AI training, HPC, multi-cloud.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

Tax abatements or other public subsidy
Permanent jobs promised
How the community has received it

Which document closes each gap

Tax abatements or other public subsidy: The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
Permanent jobs promised: The economic development application or incentive agreement, which usually states a job commitment and a clawback.
How the community has received it: Planning commission and governing body minutes, public comment records, and any petition or lawsuit filed in the county.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Our reporting on this site

How Long Do You Have to Challenge a Data Center Approval? Appeal Deadlines in 12 States · Guide

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

TierPoint Dallas-Allen · Allen · TierPointunder 1 mile · Operating
BlockchAIn Collin County AI GPU Hosting Site · BlockchAIn Digital Infrastructure, Inc.4 mi · Under construction
Lambda Plano AI Data Center (Aligned DFW-04) · Plano · Lambda9 mi · Under construction · 100 MW
Aligned DFW-01 · Plano · Aligned Data Centers9 mi · Operating · 60 MW
Flexential Dallas - Plano · Plano · Flexential9 mi · Operating · 13 MW
Stream Data Centers DFWA (DFW VII) · Garland · Stream Data Centers11 mi · Operating · 43 MW
NTT Global Data Centers Dallas TX1 · Garland · NTT Global Data Centers11 mi · Operating
Flexential Dallas - Richardson · Richardson · Flexential11 mi · Operating

Tell us about your situation

Living near CyrusOne DFW3-DFW5 (Allen)?

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Questions people ask about this site

Is there opposition to the CyrusOne DFW3-DFW5 (Allen) data center in Allen?

Has anyone filed a lawsuit over the CyrusOne DFW3-DFW5 (Allen) data center?

No lawsuit over CyrusOne DFW3-DFW5 (Allen) appears in the record we track as of September 21, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does CyrusOne DFW3-DFW5 (Allen) use?

No water withdrawal figure for CyrusOne DFW3-DFW5 (Allen) is on record here. Cooling is recorded as closed_loop, which is the strongest available clue: closed loop and air cooled plant draw far less than evaporative cooling. We leave the number blank rather than estimate one.

Who operates CyrusOne DFW3-DFW5 (Allen), and how big is it?

CyrusOne is the operator on record. We hold 35 sites for that company across the registry. Capacity on record is 50 MW. The site is recorded at 90 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "CyrusOne DFW3-DFW5 (Allen)," updated September 21, 2026, https://suedatacenters.org/data-centers/cyrusone-dfw3-dfw5-allen-tx.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/cyrusone-dfw3-dfw5-allen-tx, retrieved October 29, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

1.CyrusOne facility directory · CyrusOne · retrieved September 21, 2026
2.OpenStreetMap way/590213771 · OpenStreetMap · retrieved July 22, 2026
3.CyrusOne AI/HPC, Allen campus marketed for AI training, HPC, multi-cloud · datacenterknowledge.com · retrieved July 23, 2026
4.Business Wire: CyrusOne Purchases Solar and Wind Energy in North Texas from Gexa Energy (Apr 2022), names Allen, Carrollton, Lewisville · retrieved July 24, 2026
5.DataCenterDynamics: CyrusOne signs 40MW wind and solar PPA with Gexa Energy in Texas · retrieved July 24, 2026

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