Data center profile · Elliot Road and Ellsworth Road, Mesa, Maricopa County, Arizona

CyrusOne Mesa

Planned five-building, up to 198 MW campus on about 62 acres in Mesa, Arizona, approved in 2024 and cleared only for grading.

Permitted for grading. Mesa's planning board approved the site plan and special use permit 4-3 in July 2024; a civil site permit for grading issued Nov. 6, 2025. No building permit or power agreement on record. CyrusOne filed a new application Oct. 2026.
Up to 198 MW
critical (IT) power planned
CyrusOne's 2018 announcement; five buildings
~62 acres
site (68 acres in the 2018 announcement)
press and filings in 2026
~1.4M sq ft
five buildings of about 286,530 sq ft
2026 pre-submittal as reported; the 2024 staff report said 290,023 sq ft each
Nov. 6, 2025
civil site permit approved
permits grading only, not buildings
OperatorCyrusOne (through C1-Mesa LLC); owned by funds managed by KKR and Global Infrastructure Partners
CustomerNone named
Planned IT capacity198 MW at full build-out (company IT figure)
First building in serviceOur estimate: 2029 or later (no dated power path yet).
Next stepCity review of the Oct. 2026 pre-submittal application; no construction start date is published
Power

Power and the grid

None energized or contracted yet

Salt River Project grid servicePlanned
198 MW
up to 198 MW critical power per the 2018 announcement; no SRP service agreement is on record Company · June 2018
Proposed
Other sources, size not disclosed

Getting on the grid

Who supplies what, what it costs, and what is still not public.

  1. June 8, 2018
    198 MW campus announced
    CyrusOne announces a Mesa campus planned for up to 198 MW of critical power. Company · June 2018
  2. July 24, 2024
    Substation and switchyard in the site plan
    Plans include a company-owned substation and an SRP switchyard. News report · July 2024
  3. Not set
    Service agreement: not on record
    SRP, the utility, sets its own service terms through its elected board, so no state commission docket exists; no SRP agreement or new transmission filing for this site is in our sources. see Permits
Permits

Permits checklist

1 pending · 2 granted · 2 checked, nothing on file

Approvals a campus like this normally needs, and what we found.

Risks

What could slow it down

Money

Money on record

$19.3M land purchase, 2018 (county records, press) (62 acres bought from Sunbelt Investment Holdings). News report · June 2018

Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. June 8, 2018
    Site CyrusOne announces 68 acres in Mesa Elliot Technology Park and up to 198 MW of critical power Company · June 2018
  2. Oct. 2, 2018
    Money C1-Mesa LLC joins CyrusOne's credit agreement as a subsidiary guarantor SEC filing · Oct. 2018
  3. July 24, 2024
    Permits Mesa planning board approves the site plan and special use permit 4-3 after over an hour of heated debate (press) News report · July 2024
  4. Nov. 6, 2025
    Permits City approves the civil site permit for grading Company · Nov. 2025
  5. Dec. 2025
    Construction CyrusOne says site grading is to start; no later confirmation found Company · Dec. 2025
  6. Oct. 2026
    Permits CyrusOne files a pre-submittal application with Mesa for up to five buildings (press) News report · Oct. 2026
Construction activity

Since June 2026: 1 FAA filing (June 2026): a 350 ft crane. FAA · June 2026

The buildings

Specs

281 parking spaces in the 2024 site plan (press summary of the staff report). News report · July 2024

Who is involved

Owners, partners and builders

Owners
  • CyrusOne: developer and operator (Dallas)
  • C1-Mesa LLC: land-holding and applicant subsidiary
  • KKR and Global Infrastructure Partners: owners of CyrusOne
Decision-makers
  • Mesa Planning and Zoning Board: approved the special use permit
  • Salt River Project: electric utility
Still unknown

Open questions

Where this comes from

60 records from 15 documents

Drawn from news reports, company statements, securities filings, public and commercial datasets, state agency records and utility regulator dockets, each kept with its date and source. The bar shows documents by type.

News report 5Company 3SEC filing 3Dataset 2State agency 1Utility regulator 1
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (5)
  • Collateral is CyrusOne's stabilized operating portfolio; per-property schedules are not public, and no collateral property is address/APN-matched to this campus (Mesa, planned); Portfolio context only; no campus MW or va
    “Re: CyrusOne 2024-2 and CyrusOne 2024-3 – Data File Procedures”
    SEC filing · April 2024 · grade A
  • program collateral is described by the sponsor as 11 assets across Northern Virginia and San Antonio; Collateral is the sponsor's stabilized operating portfolio under a master trust; per-property schedules are not public
    “Re: CyrusOne 2023-2 – Data File Procedures”
    SEC filing · Nov. 2023 · grade A
  • Building count: 5 buildings
    “Upon completion, the new campus, located in the Mesa Elliot Technology Park, is planned to have five building facilities with up to 198 MW of critical power”
    Company · June 2018 · grade B
  • IT capacity: 198 MW
    “Upon completion, the new campus, located in the Mesa Elliot Technology Park, is planned to have five building facilities with up to 198 MW of critical power”
    Company · June 2018 · grade B
  • Utility: SRP (Salt River Project)
    “Plans also include a company-owned substation and a Salt River Project switchyard.”
    News report · July 2024 · grade C
Money and contracts (3)
  • CyrusOne announced purchase of 68.227 acres in the Mesa Elliot Technology Park (June 2018): five buildings with up to 198 MW of critical power planned
    “upon completion the new campus, located in the Mesa Elliot Technology Park, is planned to have five building facilities with up to 198 MW of critical power”
    Company · June 2018 · grade B
  • CyrusOne secured a $7.9 billion credit facility to fuel US data center expansion (platform-level financing, not campus-specific)
    “Global Infrastructure Partners also worked closely with the company in connection with these transactions.”
    News report · Jan. 2025 · grade C
  • land purchase: purchase price 19.3 USD million
    “CyrusOne acquired the land from Sunbelt Investment Holdings Inc. in 2018 for $19.3 million, according to Maricopa County records.”
    News report · June 2018 · grade C
Permits and government (13)
  • FAA obstruction evaluation (7460-1): Determined - No Hazard
    “ASN 2026-AWP-12441-OE: Cyrus Mesa B1, Mobile Crane, 350 ft AGL, 1784 ft AMSL, 33.35386,-111.62702, Determined - No Hazard, submitted 2026-06-25”
    FAA · June 2026 · grade B
  • FAA OE/AAA filings evidence vertical construction at CyrusOne's Mesa campus: a 350-ft mobile crane filed as 'Cyrus Mesa B1' (Building 1), submitted June 25, 2026 and Determined - No Hazard.
    “ASN 2026-AWP-12441-OE: Cyrus Mesa B1, Mobile Crane, 350 ft AGL, 1784 ft AMSL, 33.35386,-111.62702, Determined - No Hazard, submitted 2026-06-25”
    FAA · June 2026 · grade B
  • Site grading anticipated December 2025 under civil permit PMT25-11012; no building construction stated in the source
    “CyrusOne anticipates starting site grading in December 2025.”
    Company · Nov. 2025 · grade B
  • Civil site permit approved Nov 6, 2025 (City of Mesa permit no. PMT25-11012), permitting CyrusOne to grade the site in preparation for future construction
    “CyrusOne has received civil site permit approval on 11/6/2025 - City permit no. PMT25-11012. The approval permits CyrusOne to grade the site in preparation for future construction of data center buildings.”
    Company · Nov. 2025 · grade B
  • CyrusOne's Mesa campus (62 acres, Elliot & Ellsworth, via C-1 Mesa LLC) was at C: no CEC application filed for CyrusOne Mesa facilities (status check)
    “The company, through C-1 Mesa LLC, filed a pre-submittal application with the city of Mesa this month. It aims to develop up to five two-story buildings on land on the corner of Elliot and Ellsworth Roads”
    News report · Oct. 2026 · grade C
  • Baxtel lists CyrusOne Mesa as Year Planned 2027 with no construction status, consistent with no groundbreaking reported through Oct 2026
    “In August 2024, Planning officials have recommended the data center projects for approval in Mesa, Arizona.”
    News report · Oct. 2026 · grade C
  • Site location: Elliot Road and 96th Street / Elliot and Ellsworth Roads, Mesa Elliot Technology Park, Mesa, AZ
    “the CyrusOne Data Center at Elliot Road and 96th Street both received a thumbs up from the Mesa Planning and Zoning Commission in its July 24 meeting.”
    News report · July 2024 · grade C
  • Project status: announced only
    “The Commission had final say on the project's special use permit request and issued its approval on a 4-3 vote.”
    News report · July 2024 · grade C
  • Special Use Permit and Site Plan: Approved 4-3 (commission final decision body)
    “The Commission had final say on the project's special use permit request and issued its approval on a 4-3 vote.”
    News report · July 2024 · grade C
  • Planning and Zoning Commission, not City Council, had final say on the special use permit - no Council approval vote was therefore required or found
    “The Commission had final say on the project's special use permit request and issued its approval on a 4-3 vote.”
    News report · July 2024 · grade C
  • Mesa Planning and Zoning Board, Jul 24, 2024: CyrusOne's special use permit for the five-building campus at Elliot Road and 96th Street approved 4-3 (the board had final say on the SUP); pre-submittal application filed t
    “The Commission had final say on the project's special use permit request and issued its approval on a 4-3 vote.”
    News report · July 2024 · grade C
  • Mesa Planning and Zoning Board:
    “The Commission had final say on the project's special use permit request and issued its approval on a 4-3 vote.”
    News report · July 2024 · grade C
  • Mesa Planning and Zoning Board:
    “The Mesa Planning and Zoning board voted 4-3 to approve site plan for a CyrusOne data center at its July 24 meeting.”
    News report · July 2024 · grade C
Site and other (8)
  • Announced: June 6, 2018
    “today announced it purchased 68.227 acres in Mesa, Arizona for the development of a new data center cloud campus for the Fortune 1000”
    Company · June 2018 · grade A
  • Status: site grading
    “CyrusOne anticipates starting site grading in December 2025.”
    Company · Dec. 2025 · grade B
  • Site grading anticipated to start December 2025 (CyrusOne project page)
    “CyrusOne anticipates starting site grading in December 2025.”
    Company · Dec. 2025 · grade B
  • Site acres: 68.227 acres
    “today announced it purchased 68.227 acres in Mesa, Arizona for the development of a new data center cloud campus for the Fortune 1000.”
    Company · June 2018 · grade B
  • Developer: CyrusOne
    “today announced it purchased 68.227 acres in Mesa, Arizona for the development of a new data center cloud campus for the Fortune 1000.”
    Company · June 2018 · grade B
  • County code: 04013
    “The company, through C-1 Mesa LLC, filed a pre-submittal application with the city of Mesa. Maricopa County records (Mesa, Maricopa County -> 04013).”
    News report · Oct. 2026 · grade C
  • Pre-submittal application filed with City of Mesa through C-1 Mesa LLC for up to five two-story buildings at Elliot and Ellsworth (reported by DCD)
    “The company, through C-1 Mesa LLC, filed a pre-submittal application with the city of Mesa this month.”
    News report · Oct. 2026 · grade C
  • Heated debate and public comment taking over an hour preceded the 4-3 approval
    “The decision came after heated debate and public comment that took up over an hour of the July 24 meeting.”
    News report · July 2024 · grade C