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Data center buildUnder construction

QTS Phoenix 4

QTSTolleson, Maricopa County, AZUpdated

QTS is building a data center in Maricopa County, Arizona (under construction). One source reports this facility in the Kapwork Grow tracker.

Cite

Who's on this build

Named in the cited sources. No source reports who builds it.

Timeline

Dates as reported. Not a bid calendar. A planned date is not evidence that work occurred.

  1. Today

    Under construction

    Last material change Sep 24, 2026.

  2. 18 days ago

    Construction start

  3. 18 days ago

    Construction start reported

    Event date: · First observed: Not reported

Record quality

Datasets
1
Location
Street address reported
Summary
From published records
Source as of
Last material change

Report an error in this record

Site and infrastructure

CA Compute AtlasKW Kapwork Grow tracker record

Status

Operator
QTSOperator · Kapwork Grow tracker recordKapwork Grow tracker record, merged from the sources listed here (free account)As of Sep 23, 2026 · Record: 184008057164113
Stage
Under constructionStage · Compute AtlasCompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of Sep 10, 2026 · Record: qts-phoenix-4-tolleson-az
Facility type
ColocationFacility type · Kapwork Grow tracker recordKapwork Grow tracker record, merged from the sources listed here (free account)As of Sep 23, 2026 · Record: 184008057164113

Reported dates

Construction start reported
2026-09-10Construction start reported · Compute AtlasCompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of Sep 10, 2026 · Record: qts-phoenix-4-tolleson-azReported date — see the source for the event evidenced.

Site

City
TollesonCity · Compute AtlasCompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of Sep 10, 2026 · Record: qts-phoenix-4-tolleson-az
County
MaricopaCounty · Compute AtlasCompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of Sep 10, 2026 · Record: qts-phoenix-4-tolleson-az
State
ArizonaState · Compute AtlasCompute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of Sep 10, 2026 · Record: qts-phoenix-4-tolleson-az
Location precision
Street address reportedLocation precision · Kapwork Grow tracker recordKapwork Grow tracker record, merged from the sources listed here (free account)As of Sep 23, 2026 · Record: 184008057164113

Sources, method and limits

Show 2 sourcesHide

What each source reports

What each source reports
DatasetReported nameReported statusReported MW
Compute AtlasQTS Phoenix 4Under constructionNot reported

Sources and evidence

  1. CA
    Compute Atlas facility record (Kubiak, E., 2026, CC BY 4.0)As of: Sep 10, 2026 · Record: qts-phoenix-4-tolleson-az
  2. CA
  3. KW

Limitations and interpretation

  • This record is the Kapwork Grow tracker's merged view of a facility, from the tracker snapshot built 2026-09-23. Facts tagged KW are the tracker's resolved values; the per-source rows it was merged from are listed under Sources and on the tracker record.
  • Sources on this record: Compute Atlas: Kubiak, E. (2026). Compute Atlas [Data set]. https://doi.org/10.5281/zenodo.22284476 (CC BY 4.0). Every source is licensed for commercial use with attribution.
  • An announced or permitted build is not a contract, an open bid or a purchase order.
  • Capacity figures are as reported by the cited sources and may describe planned rather than energised capacity.

Cite or correct this record

Kapwork Grow, “QTS Phoenix 4”, https://kapwork.com/grow/directory/datacenters/qts-phoenix-4-az-dc_a75ab6e21151, materially updated Sep 24, 2026.

Report an error in this record and we will check it against the cited sources.

An announced or permitted build is not a contract, an open bid or a purchase order. Capacity and dates are as reported by the cited sources. “Not reported” means missing information, not zero. Completed and withdrawn records can remain available as historical records.

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