CloudHQ SAT Campus
Proposed size
600 MW
Site area
123 ac
Buildings
5
Cooling
Evaporative cooling towers (assumed at this scale)
Developer
CloudHQ
CloudHQ acquired 123 acres at 15255 Lambda Drive in the Texas Research Park in June 2023, directly across from Microsoft's existing campus. The five-building SAT campus master plan targets 600 MW of critical IT capacity. The first building (SAT1) construction began 2024; subsequent buildings planned through 2027+. The campus sits on the former UT Health Science Center site in west Bexar County.
Water Impact
Daily water use (estimated range)
5.4M – 7.8M gal/day
Water returned per day
None reported
Per Estimated from 600 MW full-build using LBNL benchmark 9,000–13,000 gal/day/MW, based on MW benchmark at WUE 1.8–2.5 L/kWh, 80% utilization; full 600 MW is long-term master plan
vs. 5M gal/day (typical 400 MW facility)
The higher estimate is equivalent to the daily water use of approximately 78,000 households. San Marcos has approximately 25,000 households.
- Water intake
- 5.4M – 7.8M gal/day
- Lost to evaporation
- 100%
- Returned to system
- 0% (None reported)
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: 15255 Lambda Drive, San Antonio, Bexar County, TX
Distance to aquifer edge: 0 miles
Water source: SAWS
Infrastructure
- Water provider
- SAWS
- Power provider
- CPS Energy / ERCOT
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Timeline
March 18, 2026
Community Impact covers CloudHQ as part of San Antonio data center policy discussion
Community Impact published coverage of San Antonio's effort to develop a tailored data center regulatory model, citing CloudHQ, Stream, Vantage, AWS, Microsoft, and CyrusOne as the dominant investors on the far West Side. The article noted City Council's push to amend the Unified Development Code.
Source →(opens in new tab)March 4, 2026
San Antonio City Council briefing covers CloudHQ among major campus investors
The March 4, 2026 San Antonio City Council briefing by CPS Energy and SAWS specifically identified CloudHQ as one of the largest investors in Bexar County's data center market. SAWS noted that 75% of data center water usage in 2025 was recycled water, up from 48% in 2023.
Source →(opens in new tab)October 1, 2025
Construction begins on CloudHQ SAT1 — 432,800 sq ft, 96 MW, $276.8M
CloudHQ began construction on SAT1 at 15355 Lambda Drive in October 2025. The two-story, 432,800 sq ft building will deliver up to 96 MW of critical IT capacity with a total investment of $276.8 million, scheduled for completion August 2027. SAT1 is the first of five planned campus buildings.
June 1, 2023
Data Center Dynamics reports CloudHQ 123-acre San Antonio land acquisition
Data Center Dynamics reported CloudHQ's acquisition of over 120 acres at Texas Research Park, confirming plans for a five-building hyperscale campus capable of delivering up to 600 MW of critical IT load. The article noted the site's proximity to existing Microsoft data center infrastructure.
Source →(opens in new tab)May 10, 2023
CloudHQ acquires 123 acres from UT System at Texas Research Park
CloudHQ purchased approximately 123 acres of undeveloped land from the University of Texas System at Texas Research Park in west Bexar County, near Lambda Drive and Omicron Drive. The site is directly across from Microsoft's data center facilities. CloudHQ plans a five-building, 600 MW campus on the former UT Health Science Center land.
Source →(opens in new tab)
Sources
- 1. CloudHQ acquires more than 120 acres of land in San Antonio, Texas — Data Center Dynamics, 2023-06-01. Link →(opens in new tab)
- 2. CloudHQ Scoops 123 Acres Near Microsoft Data Center in San Antonio — The Real Deal Texas, 2023-05-10. Link →(opens in new tab)
- 3. San Antonio City Council looks to zoning to manage data center growth — KSAT, 2026-03-07. Link →(opens in new tab)
Community Notes
At 600 MW full build, this would be among the largest single data center campuses in Texas and one of the most water-intensive facilities on the Edwards Aquifer recharge zone. Located approximately 600 feet from residential areas. San Antonio City Council's 2026 data center zoning deliberations are partially driven by this campus. No zoning ordinance enacted as of April 2026; public comment window is open.