Status: Under Construction | Location: 2580 FM471 North / 8844 FM1957, Castroville, TX 78009, USA
The Microsoft Castroville FM471 Campus, situated at 2580 FM471 North and 8844 FM1957 in Castroville, Texas, represents a major hyperscale data center development designed to expand Microsoft's global Azure cloud infrastructure while supporting next-generation artificial intelligence, high-performance computing, and enterprise workloads. Located in Medina County northwest of San Antonio, the expansive campus spans hundreds of acres and is engineered to accommodate phased development, rapid power deployment, and increasingly dense computing architectures. Utility power is supplied through high-voltage onsite substations connected to the ERCOT power grid, providing the electrical capacity required for large-scale cloud and AI operations. Resiliency is reinforced through static uninterruptible power supply configurations and industrial standby emergency diesel generators supported by extensive onsite fuel storage, helping maintain continuous operations during grid interruptions and other utility events. The campus incorporates Microsoft's broader sustainability objectives, with infrastructure designed to support zero-waste practices and net-zero water ambitions. Zero-water closed-loop cooling systems help reduce dependence on freshwater resources, while advanced direct-to-chip liquid cooling capabilities are suited to the elevated thermal requirements of high-density AI and accelerated computing environments. Network connectivity is another critical component, with redundant subterranean dark fiber pathways providing diverse connections to major Texas intercity fiber backbones and regional technology corridors. Strategically positioned within the San Antonio metropolitan area, the Castroville FM471 campus strengthens Microsoft's regional Azure footprint by combining large-scale land availability, robust electrical infrastructure, advanced cooling technologies, and resilient fiber connectivity. Together, these capabilities position the development as an important hyperscale digital infrastructure hub for Microsoft's expanding cloud and AI ecosystem across Texas and beyond.
| Field | Value |
|---|---|
| Project Name | Microsoft Castroville FM471 Data Center 250MW Campus |
| Location | 2580 FM471 North / 8844 FM1957, Castroville, TX 78009, USA |
| Status | Under Construction |
| Project Type | Hyperscale Data Center, AI Cloud Infrastructure & Azure Region Node |
| Commissioning | 🔒 Subscriber Intelligence |
| Total IT Load | 🔒 Subscriber Intelligence |
| Total Capacity | 🔒 Subscriber Intelligence |
| Tier Level | 🔒 Subscriber Intelligence |
| Header | Details |
|---|---|
| City Name | San Antonio |
| Population | Approximately 1.5 million (2023 estimate) |
| Urban Agglomeration | Around 2.5 million |
| Economic Profile | 🔒 Detailed city intelligence available to subscribers |
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