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Tract Caldwell Valley Technology Park

Tract Caldwell Valley is a powered-land data center park — roughly 3,000 acres near Uhland that Tract zones, entitles, powers, and makes shovel-ready, then leases as pads to operators who build the actual data centers. At up to 4 GW of planned capacity, it is one of the largest single master-planned data center parks in the United States, and the anchor of the I-35 South corridor between Austin and San Antonio.

Attribute	Detail
Developer	Fleet DC (created by Tract Capital); Tract as operator. Founder Grant van Rooyen (ex-Cologix)
Location	FM 2720, Uhland, Caldwell County, TX (I-35 South corridor)
Distance from Austin	~30 mi S (Austin–San Antonio midpoint)
Size	~3,000 contiguous acres (2,973)
Planned capacity	Up to 4 GW at full buildout
First phase	360 MW (250 MW contracted) for Q1 2028; substation scaling to 1.6 GW
Power	Bluebonnet Electric Cooperative + LCRA; on-site gas via Kinder Morgan Permian Highway pipeline
Infrastructure confluence	High-voltage transmission + natural gas pipeline + long-haul fiber on one site
Incentives	No tax abatements requested
Land history	Acquired from Walton Global Holdings; landowner entities TXLCO Caldwell County LLC / Walton
Buildout window	Phased through 2030+; first 1 GW targeted early 2028
Status	Site prep underway; construction expected 2027

What it is

Tract's model is powered land, not data centers. The company — Colorado-based, founded by former Cologix CEO Grant van Rooyen — acquires large parcels, secures zoning, entitlement, power, and fiber, and delivers shovel-ready megasites for other operators to build on. Caldwell Valley is its Texas flagship. Tract closed the original 1,515-acre parcel from Walton Global Holdings in May 2025, after an 18-month entitlement engagement, initially planning more than 2 GW. In January 2026 it added 1,458 contiguous acres in two acquisitions, nearly doubling the site to about 3,000 acres and lifting the master plan to up to 4 GW. The distinction from a conventional campus matters: Tract does not operate the compute — it sells the platform, and the operators who lease pads bring their own buildings, chips, and tenants.

The infrastructure confluence

What makes the site distinctive is where it sits. Three infrastructure substrates intersect on one parcel: high-voltage transmission for grid power, the Kinder Morgan Permian Highway natural gas pipeline crossing the site for on-site generation, and long-haul fiber for connectivity. The gas access is the strategically important piece — it lets pad operators build behind-the-meter generation for peak-load and backup power independent of ERCOT's interconnection queue, the same constraint driving the whole Texas buildout. Tract has executed a Facility Design Agreement with Bluebonnet Electric Cooperative and the Lower Colorado River Authority for a substation scaling to 1.6 GW, with the first 250 MW contracted for Q1 2028. The site drew Micron's attention as a possible fab location before Micron chose New York — evidence the substrate is graded for semiconductor-manufacturing tolerances, not just data centers.

On-site tenant: PowerHouse

The first disclosed pad-taker inside the park is PowerHouse Data Centers, owned and operated by American Real Estate Partners (AREP).

Tenant	Footprint	Detail
PowerHouse Data Centers (AREP)	~500 acres within the park	Reported ~700 MW; on-site gas plant; undisclosed single "big name" tenant. De-annexed from Uhland into Caldwell County jurisdiction, April 2026

PowerHouse is a national developer with a pipeline reported above 8 GW across several states; the Caldwell Valley pad is one node of it. Its single end tenant has been described only as a major name and not disclosed. The de-annexation from the City of Uhland into county jurisdiction, in April 2026, was a move to route around municipal opposition — a recurring feature of the I-35 South corridor's data center fights.

The adjacent corridor

Caldwell Valley does not sit alone. It anchors a cluster of data center projects along the I-35 South corridor that are separate developments on separate parcels, not part of the Tract park. Prime Data Centers is building a roughly $1.3 billion campus across FM 2720 from Tract — adjacent, but its own site. Edged Energy is developing a 2-million-sq-ft facility nearby on a Waterstone Land Partners parcel, with construction set to begin mid-2026. Further south along I-35, CloudBurst Evolve and Sabey extend the same corridor toward San Antonio. Together these make the Austin–San Antonio stretch of I-35 the supercluster's youngest and fastest-forming data center concentration — the southward extension of the buildout.

Last updated September 11, 2026. Capacity is the developer's stated buildout target (raised from 2 GW to 4 GW with the January 2026 expansion); PowerHouse's ~700 MW and tenant identity are reported, not confirmed by the parties. Prime and Edged are adjacent, separate developments. Status: site prep underway, none operational.