CyrusOne PHX4

CyrusOne PHX4 is a colocation data center in Chandler, Maricopa County, Arizona, operated by CyrusOne LLC. The site has been mapped, with a reported footprint of 103,008 square feet. Available records do not name an ultimate parent above CyrusOne LLC.

• CyrusOne Kicks Off Third Massive Phoenix Data Center

  Data Center Knowledge· May 30, 2024
• CyrusOne plots second Phoenix campus in Mesa

  Data Center Dynamics· Nov 22, 2023
• Residents skeptical about noise declines at data center

  chandlernews.com· Nov 1, 2022
• City of Chandler, Arizona, looks to restrict data center developments with new proposals

  Data Center Dynamics· Dec 1, 2021
• Chandler to consider banning data centers amid noise complaints

  ABC15 Arizona· Nov 29, 2021
• Unsustainable, resource-hungry and loud: Why Chandler wants to ban more data centers.

  azcentral.com and The Arizona Republic· Nov 22, 2021

Local-government meetings in this county that discussed data centers, each cued to the moment. From the public LocalView corpus of government meetings on YouTube — a county-level signal, not necessarily about this specific site.

▶ ~6:07

Phoenix Committee

Jun 14, 2023 · 1 data-center mention

▶ ~97:24

Chandler City Council

Oct 14, 2021 · 1 data-center mention

▶ ~71:52

Chandler City Council

Sep 14, 2020 · 1 data-center mention

These tax breaks are recorded to CyrusOne LLC (the operator/parent) and may cover this or other sites — no state names the recipient at the facility level.

• Texas Qualifying Large Data Center Project Exemption$0
  State of Texas · granted 2022 · term — yr · source
• Texas Qualifying Data Center Exemption$0
  State of Texas · granted 2017 · term — yr · source
• Texas Qualifying Data Center Exemption$0
  State of Texas · granted 2016 · term — yr · source

No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.

No reported violations as of last sync.

Air Quality Index from the nearest AirNow reporting area (Gila River Indian Community), as of 2026-06-10. Regional context — not this facility's own emissions.

Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.

The nearest public school, Bogle Junior High School in Chandler, is 0.9 mi from this site (1,151 students). 2 public schools sit within a mile of the site.

Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).

No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.