Another data center developer is preparing to make a major investment in the San Antonio area. CyrusOne, a global data center developer, is set to build a new $500 million project in Castroville, according to a filing with the Texas Department of Licensing and Regulation (TDLR).
The Dallas-based company designs, builds, and operates “industry-leading data centers” across the globe. This will be its first project in the Hill Country town; CyrusOne currently has five data centers in San Antonio. Its growing presence is tied to a wave of data centers pouring money into Medina County, including a new 265-acre technology park and Microsoft’s SAT 89 campus. Castroville and other Texas towns are on the forefront of what one industry report claims is on track to become the world’s largest data center market by 2030.
Plans for the massive 460,000-square-foot project, known as SAT14A, were quietly registered on July 16, 2026 — though the project has been in the works since at least January 12, 2026, the date construction apparently began, according to the filing…