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Amazon AWS — COPT Potranco Data Center

Application FiledEngageReview in progress — 2 sources cited

Building area

141,979 sq ft

Investment

$0.0B

Developer

Amazon Web Services

Amazon AWS filed plans for the COPT Potranco data center at 1535 NW Loop 1604 in west San Antonio. The two-story, 141,979 sq ft facility is a $25 million investment. Construction is planned October 2026 through November 2027. This is one of multiple AWS expansion projects across San Antonio's west and southeast sides.

Water Impact

Daily water use (estimated range)

Unknown

Water returned per day

None reported

Per MW capacity not disclosed in filing; water estimate not possible without MW, based on West Bexar County recharge zone location; MW not confirmed

Estimated daily water useUnknown

vs. 5M gal/day (typical 400 MW facility)

Water intake
Unknown
Lost to evaporation
100%
Returned to system
0% (None reported)
Water flow: Unknown enters the facility per day. Approximately 100% (1M gal/day) is lost to evaporative cooling and cannot be recovered. No return flow is reported.
For comparison: A sustainable seawater-cooled data center can return over 95% of water to the system. A typical land-based evaporative cooling tower loses 80–95% to evaporation — the primary method used in Texas.

Direct water figures are estimates from permit applications and developer disclosures. Indirect (power generation) figures are calculated estimates. Actual water use depends on technology choices, operating capacity, and weather conditions.

Location

Address: 1535 NW Loop 1604, San Antonio, Bexar County, TX

Edwards Aquifer Recharge Zone:YES — IN RECHARGE ZONE

Distance to aquifer edge: 0 miles

Water source: SAWS

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Infrastructure

Water provider
SAWS
Power provider
CPS Energy / ERCOT

This project needs your attention.

Application Filed

Application is filed — your voice carries extra weight right now

Officials are still persuadable. A formal application creates the paper trail that triggers public notice, but no vote has been scheduled yet. Letters received during the review period go into the record and are read by staff writing the recommendation.

Timeline

  1. October 1, 2026

    Construction planned to begin on COPT Potranco (AWS) campus

    Per the TDLR filing, construction on the COPT Potranco / AWS data center at 1535 NW Crossroads is planned to begin October 2026, with a scheduled completion of November 2027. The 141,979 sq ft, two-story core-and-shell building represents a $25 million investment.

    Source →(opens in new tab)
  2. March 18, 2026

    Community Impact covers AWS Potranco as part of San Antonio data center policy coverage

    Community Impact's March 18, 2026 coverage of San Antonio's data center policy effort referenced the AWS-linked Potranco Road project alongside other west-side campuses, in the context of the City Council's push for a tailored regulatory model addressing water and energy impacts.

    Source →(opens in new tab)
  3. March 4, 2026

    San Antonio City Council briefing addresses west-side data center cluster including AWS-linked Potranco project

    The March 4, 2026 City Council briefing by CPS Energy and SAWS addressed the broad cluster of data center projects on San Antonio's west and northwest sides, including the AWS-linked Potranco Road development. Council members signaled intent to amend the Unified Development Code before new permits are issued.

    Source →(opens in new tab)
  4. January 1, 2024

    Baxtel reports AWS Potranco Road project among three new San Antonio filings

    Baxtel reported on AWS's three new San Antonio data center permits, including the COPT Potranco project at 1535 NW Crossroads. The article noted COPT's known relationship as an AWS data center landlord and an AWS engineer listed as tenant contact, strongly linking the project to Amazon despite the REIT filing.

    Source →(opens in new tab)
  5. January 1, 2024

    TDLR permit filed for COPT Potranco data center (AWS-linked) — $25M, 141,979 sq ft

    COPT San Antonio LP (Corporate Office Properties Trust, a known AWS landlord) filed a TDLR permit in January 2024 for a two-story, 141,979 sq ft core-and-shell data center at 1535 NW Crossroads. Estimated cost: $25 million; construction planned October 2026 – November 2027. The tenant contact on the filing is an AWS-employed engineer. Architect: Gensler.

    Source →(opens in new tab)

Sources

  1. 1. AWS files to develop data centers in San Antonio, Texas — Data Center Dynamics, 2024-01-01. Link →(opens in new tab)
  2. 2. AWS Planning 3 new data centers in San Antonio — Baxtel, 2024-01-01. Link →(opens in new tab)

Community Notes

Located in the Potranco Road corridor in west Bexar County, within the Edwards Aquifer recharge zone.