Planned

East Thistle Data Center

East Thistle Data Center is a planned data center in Phoenix, AZ. Reported capacity is 257 MW. Menlo Equities plans to redevelop its largely vacant Thistle Landing office park in Phoenix's Ahwatukee neighborhood (SW corner of 50th St and Thistle Landing Dr, about 38 acres) into a five-building, 1-million-sq-ft data center and office/R&D campus called East Thistle Data Center, with an on-site substation providing up to 257MW of IT capacity. The Ahwatukee Foothills Village Planning Committee approved portions of the plan; as of March 2026 it still needed final Phoenix City Council approvals, utility agreements and permits, with design/engineering complete and powered-shell delivery targeted for late 2026. Neighbors have raised noise and water concerns at public meetings.

257 MWPlanned capacity

https://www.menloequities.com/properties/4809-east-thistle-landing-drivephoenix-az-copy/

Project status

Announced
Permitting
Under constructionNot yet
OperationalNot yet

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What’s next

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Tuesday, November 3
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Records and documentation

Arizona state legislation

Council Vote — Denial of AI Data Center Special Use ApplicationApprovalchandleraz.govChandler City Council denied a special-use application for an AI data center project in December 2025.Download
ACC Docket E-01345A-25-0105 - APS 2025 General Rate Case (Data Center Rate Class)Approvaledocket.azcc.govFiled June 2025, seeking ~14-16% base rate increase including a 45%+ rate increase specifically for "extra-large energy users" (data centers) and a proposed annual true-up mechanism largely tied to data-center-driven load growth.Download
Pima County Memorandum of Agreement (Project Blue / Humphreys Peak Properties)Community benefits agreementfas.orgBinding MOA between Pima County and Humphreys Peak Properties for the 'Project Blue' data center development.Download
Ordinance No. 5033 (Zoning Code Ch. 35, Sec. 2214)Ordinancechandleraz.govOne of the earliest data center zoning ordinances in the US, enacted by Chandler, AZ in December 2022.Download
ACC Docket E-00000A-25-0069 - Inquiry into Data Center Rate ClassificationsDocumentedocket.azcc.govOpened April 2025 -- commission-wide inquiry into rate classification and cost-allocation policy for data centers/large loads ("Growth Pays for Growth"). Workshop held April 2026.Download
HB2949 - Energy costs; large data centersLegislationlegiscan.comHouse read second time Feb 5, 2026Description comingDownload
HB2452 - Comprehensive plans; data centers; nuclearLegislationlegiscan.comHouse motion to reconsider third reading Feb 26, 2026Description comingDownload

Site details

Operator: Not announced
County: Maricopa County, AZ
Capacity: 257 MW
Address: Phoenix, AZ
Stage: Planned

Size: not on file

Map

Photos

https://www.menloequities.com/properties/4809-east-thistle-landing-drivephoenix-az-copy/
https://www.datacenterdynamics.com/en/tags/east-thistle-data-center/
Resistance to this data hub in Phoenix is futile. Here's whyThe Arizona Republic
An $8 billion Treasury break helped Meta’s tax rate hit 2%. Senators want data center tax answersFortune
The states with the fewest and most data centers, rankedBusiness Insider
Finns Are Seething After Google Illegally Toppled 250,000 Trees for a Data CenterMother Jones
Google offer to pay others to help data center powerArkansas Online
This bill would make data centers pay their own way for powerSalt Lake City Deseret News