DA12-1

A new four-story data center is rising at 1550 West Mockingbird Lane in Dallas, Texas. The project, filed under the name DA12-1, encompasses a massive 372,517 square feet of interior space. This facility is designed for private use and is privately funded on private land within Dallas County.

The construction scope is extensive, including interior partitions, doors, ceilings, and lighting fixtures. It also involves the installation of mechanical and electrical equipment, twenty generators, and five generator pads. The estimated total cost for this new construction is $542,809,034, which calculates to approximately $1,457 per square foot.

Margulies Hoelzli Architecture serves as the design firm of record for this project. Bonita L Anderson is the registered accessibility specialist associated with the filing. The project was registered with TDLR in November 2025, and plan review was completed in the same month.

Construction is scheduled to begin in February 2026. The timeline for completion is set for late 2027. Specifically, the project is scheduled to finish in October 2027. This build window spans approximately 600 days, which is longer than the median scheduled build window for similar new construction filings in Dallas County.

The area surrounding the site includes several businesses, such as a gun range, a restaurant, and a law office. Census estimates for the 75235 ZIP code indicate a population of about 19,067 and a median household income of $60,817.

Third-party industry sources have identified this location as part of the Equinix DA12 campus. These sources describe the facility as a planned data center expected to become operational in 2027. The TDLR record confirms the private nature of the funding and the specific construction scope detailed in the filing.