Microsoft's $52M Data Center Bet in Medina, Texas

Microsoft doesn't build data centers in small towns by accident.

Medina, Texas — population roughly 3,500, tucked into the Hill Country about 65 miles northwest of San Antonio — is about to become the site of two new hyperscale data centers. The company filed with the Texas Department of Licensing and Regulation (TDLR) for projects designated SAT93 and SAT94, each representing a $26 million investment and each spanning 245,000 square feet on a greenfield site at 381 County Road. Construction is slated to begin in March and April 2027, respectively, with completion targeted for spring 2029.

That's a lot of square footage for a town most Texans couldn't find on a map. And that's precisely the point.

A Scaled-Back Filing That Still Signals Serious Commitment

Before reading this as a minor footnote in Microsoft's infrastructure story, consider the context. Microsoft previously filed for two projects under the same names — SAT93 and SAT94 — at the same Medina address back in February 2025. Those earlier filings listed investments at $350 million each, with construction expected to begin mid-2025 and wrap by mid-2027.

The current filings show $26 million each, pushed-out timelines, and adjusted scope. That's a dramatic change on paper. But dismissing this as a retreat would be a mistake.

Project scope and filing valuations in TDLR documents don't always reflect total capital deployment — they often capture specific phases, permit scopes, or construction contract values rather than the full investment picture, including equipment, land, and fit-out. A 245,000-square-foot, one-story data center built to hyperscale specs costs far more than $26 million to actually bring online. The filing number is a regulatory artifact. The 490,000 combined square feet of new data center space being built in a rural Texas county is the real signal.

Gensler Architecture, Design Planning, P.C. is the designer for both buildings — a firm with deep experience in mission-critical environments. That choice alone speaks to the seriousness of the build.

What This Means for Medina and the Surrounding Region

For a small Hill Country town, two simultaneous hyperscale construction projects represent a meaningful economic event — even if the long-term operational headcount is modest, as is typical for data centers.

During the construction phase alone, projects of this scale typically employ hundreds of electricians, structural contractors, mechanical crews, and specialized data center builders over a multi-year timeline. Local suppliers, hospitality businesses, and contractors within the San Antonio metro stand to benefit from sustained project activity through 2029. Once operational, the tax base implications for Medina County are substantial — data centers generate significant property tax revenue relative to their workforce size.

Microsoft's willingness to plant a hyperscale flag in a rural greenfield site rather than an established industrial park suggests land availability, power access, and fiber connectivity have already been resolved. That kind of site selection work doesn't happen casually at Microsoft's scale.

The broader San Antonio corridor is clearly a priority geography. In January 2026, Microsoft filed for a $400 million project in Castroville, another small town west of San Antonio. The company also operates and is developing facilities along Wiseman Boulevard, Lambda Drive, Westover Link, and Rogers Road within the city itself. The Rogers Road site is separately undergoing a $5 million renovation that includes an interior archive enclosure — insulated walls, vapor barriers, sealed doors — which points to cold storage or specialized archival infrastructure being added to an existing facility.

Microsoft established its first South Central US Azure region in Texas back in 2008, followed by a US Gov Texas region in 2017. What's happening now isn't a discovery of Texas — it's a deepening of a bet that's been building for nearly two decades.

The Infrastructure Profile: What 245,000 Square Feet Actually Means

Each building is a single-story structure, which is standard practice for hyperscale data center construction. Single-story design simplifies power distribution, mechanical systems, and equipment deployment — it's optimized for density and operational efficiency, not architectural ambition.

At 245,000 square feet per building, each facility is large by any standard. For reference, a typical enterprise colocation data center might run 50,000 to 100,000 square feet. These are purpose-built, large-format hyperscale buildings designed to house the kind of compute density that supports Azure's cloud infrastructure, AI workloads, and government cloud services.

The AI infrastructure buildout happening across the industry right now is driving demand for exactly this type of facility — ground-up, greenfield, purpose-designed for high-density power delivery and cooling capacity. Microsoft's AI commitments, including its deep partnership with OpenAI, require an enormous and expanding physical footprint.

The source article doesn't specify cooling technology or power sourcing, but Texas's infrastructure dynamics are worth noting here. The ERCOT grid has faced well-documented reliability challenges, which means large load customers like data centers increasingly negotiate directly for renewable energy or build behind-the-meter generation. Texas clean energy development — particularly solar and wind — has made the state one of the most attractive for data center operators trying to hit sustainability targets while also securing power at scale.

Medina vs. The Rest of Microsoft's Texas Footprint

Why Medina specifically, rather than expanding further within San Antonio proper?

The honest answer is probably a combination of factors: land cost, available acreage for a greenfield build at this scale, power infrastructure access, and the increasing difficulty of siting large industrial facilities within city limits due to zoning constraints and community pushback. The data center industry is learning that going 30 to 65 miles outside a major metro often unlocks everything that urban sites can't offer.

Castroville tells the same story. So does the pattern playing out in markets like Phoenix, Northern Virginia, and Dallas — hyperscalers moving to secondary and tertiary markets adjacent to their primary metro clusters, building out concentric rings of infrastructure.

For Medina, being 65 miles from a major metro with an existing Microsoft Azure region isn't a disadvantage. It's a feature. The latency between Medina and San Antonio's Azure infrastructure is negligible for most workloads, and the physical separation provides resilience.

Where This Is All Heading

The delay between Microsoft's 2025 filings and the current 2027 construction timeline isn't unusual — hyperscale project pipelines are long and subject to constant revision based on power availability, supply chain conditions, and internal capacity planning. What matters is that the projects are still on the books, still progressing through regulatory channels, and still drawing on Gensler's design expertise.

The broader trajectory is clear: Microsoft's data center investment in Texas is not slowing down. The combination of a favorable regulatory environment, abundant land, growing renewable energy capacity, and proximity to existing Azure infrastructure makes the San Antonio corridor one of the company's most active development zones in the country.

For infrastructure investors, landowners, and local governments in rural Texas markets near existing hyperscale activity, the Medina announcement is a reminder that the next data center doesn't always come from the direction you expect. Secondary markets with the right fundamentals — power, fiber, land, and logistical access — are increasingly where the action is.

Medina now has all four. That's why Microsoft is there.

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