# Microsoft Lambda Drive Datacenter Campus

ERCOT data center · https://askthegrid.com/assets/facilities/microsoft-lambda-drive-datacenter-campus

Microsoft's Lambda Drive datacenter campus is in the Texas Research Park on San Antonio's far West Side, in Bexar County. Microsoft bought 158 acres there in December 2015. Texas TDLR filings list SAT46, a 79,385 sq ft data center building on the existing campus (2021–2022), and SAT40, a 153,227 sq ft data center at 15000 Lambda Drive with an estimated cost of $175.9 million. Bexar Appraisal District figures cited by local press put Microsoft's Lambda Drive data centers at 850,000 sq ft built since 2016. Turner Construction is the general contractor.

## Identity and location

- Operating status: operating
- Asset scope: campus
- Location: 15434 Lambda Dr, San Antonio, Bexar County, TX
- Operator: Microsoft (campus) — https://local.microsoft.com

## Development

- Construction: Microsoft has built about 850,000 sq ft of data centers on Lambda Drive since 2016; SAT40, a $175.9 million building on 70 acres, was built by Turner Construction.

## Sources

- [FRS Facility Detail Report | Envirofacts | US EPA](https://frs-public.epa.gov/ords/frs_public2/fii_query_dtl.disp_program_facility?p_registry_id=110072072096)
- [U.S. Census street-address geocode](https://geocoding.geo.census.gov/geocoder/geographies/onelineaddress?address=15434+Lambda+Dr%2C+San+Antonio%2C+TX%2C+78245&benchmark=Public_AR_Current&vintage=Current_Current&format=json)
- [Lambda Drive datacenter construction update - Microsoft Local](https://local.microsoft.com/blog/lambda-drive-datacenter-construction-updates/)
- [Microsoft Buys 158 Acres for $1 Billion Development | Realty News Report](https://realtynewsreport.com/microsoft-buys-158-acres-for-1-billion-development/)
- [Number of Microsoft data centers in San Antonio starting to add up](https://sanantonioreport.org/microsoft-data-centers-san-antonio-region/)
- [Cluster of data centers on West Side continues to grow](https://sanantonioreport.org/with-ut-sale-cluster-of-data-centers-on-west-side-continues-to-grow/)
- [Project Details](https://www.tdlr.texas.gov/TABS/Search/Print/TABS2021012189)
- [Project Details](https://www.tdlr.texas.gov/TABS/Search/Print/TABS2023013247)

## Data quality

- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.
- Map point: approximate U.S. Census street-address geocode.

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Canonical page: https://askthegrid.com/assets/facilities/microsoft-lambda-drive-datacenter-campus
Profile generated: 2026-10-09T14:38:57.509948Z
Source: Ask the Grid — https://askthegrid.com/