Rockwall, TX - Island Expansion

Costco Wholesale completed a renovation project at 1225 State Hwy 276 in Rockwall, Texas, passing its final TDLR accessibility inspection in March 2026. The work, filed as the Rockwall, TX - Island Expansion, involved the removal of existing and installation of new and relocated refrigerated display cases within a 325 sq ft area.

This renovation/alteration project was privately funded and executed on private land for private use. The estimated cost of $245,000 places the project close to the median estimated cost of $239,000 for similar renovation and alteration filings in Rockwall County over the last 24 months. However, the cost per square foot of $754 is above the county median of $90 for this project type.

MG2 Architecture Corporation served as the design firm of record for the project. The registered accessibility specialist was Justin K Walton. The project was registered with TDLR in April 2025, and plan review was completed in the same month. Construction began in July 2025, with a scheduled completion date of April 2026.

The scheduled build window of 274 days is longer than the county median of 90 days for renovation and alteration projects in Rockwall County. Despite the extended timeline, the project reached its final status with the inspection completed in March 2026, confirming that the construction phase is finished.

Project Context

Costco Wholesale Corporation has six other TDLR-registered projects totaling $3,770,000 across Texas, including locations in Georgetown, San Antonio, Pflugerville, and Prosper. MG2 Architecture Corporation has designed six other Costco-related projects, including fuel facilities in Richmond, Lubbock, and The Woodlands. The area profile for ZIP 75032 shows a population of about 37,895 and a median household income of $128,465, with housing predominantly owner-occupied.

The Rockwall County unemployment rate was 4.1 percent in August 2026, lower than a year earlier. This renovation project fits within the broader pattern of commercial activity in the region, reflecting ongoing updates to retail infrastructure in the Rockwall area.