Microsoft San Antonio (SAT89)
2995 US Hwy 90 W, Castroville, TX, 78009, US
Colocation space
489,400
sq ft
Two single-storey data centre buildings totalling 489,400 sq ft are going up at 2995 US Highway 90 West in Castroville, in Medina County outside the San Antonio city limits. Microsoft filed them as one project, SAT89/90, at an estimated $765 million, with WSP USA as designer. Work started on 1 June 2025 and completion is set for 31 July 2027. Microsoft already has a run of Medina County projects behind it, SAT80, SAT81 and SAT82 among them.
Facility Specifications
Site information
- Colocation space
- 489,400 sq ft across two buildings
Request a Quote
Quote request for: Microsoft San Antonio (SAT89) view facility
Location
Frequently asked questions
What is being built at 2995 US Highway 90 West?
Two single-storey data centre buildings totalling 489,400 sq ft, filed by Microsoft as one project at an estimated $765 million.
When is the Castroville project due to finish?
31 July 2027. Construction began on 1 June 2025.
Why is the Castroville project filed as SAT89/90?
The two buildings were registered together under a single project name rather than as separate filings.
Which other Microsoft projects sit in Medina County?
SAT80 and SAT81 from 2023, SAT82 across 2024 and 2025, and SAT93 and SAT94 on County Road 381.