Costco Katy, TX Depot - Addition in Brookshire, TX

Costco Wholesale Corporation completed a $13,962,779 expansion at its Brookshire distribution center, adding 95,960 square feet of one-story occupancy to the existing dry depot at 31031 US HWY 90. The project, filed as Costco Wholesale Katy, TX - Depot, included the installation of 15 new dock doors, a parking expansion, and the relocation of the truck scale. This significant addition to the Waller County site is now fully concluded, with the Texas Department of Licensing and Regulation closed the project file in September 2026.

Construction Scope and Design

MG2 Architecture Corporation served as the design firm of record for this privately funded project on private land. The scope of work specified a one-story addition equipped with a fully automated sprinkler and fire alarm system. The registered accessibility specialist for the filing was David C Deming. Construction began in July 2025, following a plan review that was completed in February 2025. The final inspection for the site passed in May 2026, marking the physical completion of the build-out.

This development is significantly larger than typical additions in the region. The estimated cost of $13,962,779 places the project in the top quarter of 47 similar TDLR-registered additions to existing buildings in Waller County. The median estimated cost for comparable projects in the county is $795,200. Additionally, the project's cost of $146 per square foot is above the county median of $88 per square foot, while the scheduled build window of 169 days remained close to the county median of 213 days.

Costco Wholesale Corporation has six other TDLR-registered projects totaling $3,770,000, including locations in Georgetown, San Antonio, Pflugerville, and Prosper. MG2 Architecture Corporation is also on record for six other projects totaling $1,115,000, which include fuel facilities in Richmond, Lubbock, The Woodlands, and Austin, as well as a warehouse in Southlake.

The surrounding area includes Brookshire Smile Dental, Brookshire Brothers, Brookshire Family Practice, NAPA - Fitz Family Auto Parts, and a United States Postal Service office. U.S. Census ACS 2023 five-year estimates for ZIP 77423 indicate a population of about 16,689 and a median household income of $82,280. The Waller County unemployment rate was 6.1 percent in July 2026, a figure that was higher than a year earlier.