AEP Hallsville, TX Building Designs

Southwestern Electric Power Company is constructing a new 5,100 sq ft water treatment building at 2400 FM 3251 in Hallsville, Texas. The facility, designed to house water treatment equipment, is a pre-engineered metal structure with an estimated cost of $2,148,332. Construction is scheduled to finish in January 2027, following a planned start date of October 2026.

The site is privately owned and funded for private use. According to the TDLR filing, the building foundation and sitework are outside the scope of this specific registration and are shown for reference only. The estimated cost per square foot is $421, which is above the county median of $166 for similar new construction filings.

Project Timeline and Status

TDLR completed plan review in August 2026. The registration was filed in July 2026 under the name AEP Hallsville, TX Building Designs. The scheduled build window is 102 days, which is shorter than the county median of 212 days for comparable projects. The status is listed as Review Complete, indicating that regulatory approvals for the design phase have been finalized before construction begins in October 2026.

Duplantis Design Group, P.C. (DDG) is the design firm of record, with Robert W Green registered as the accessibility specialist. This firm has three other TDLR-registered projects totaling $17,916,126, including an electrical building and an administration building also in Hallsville. Southwestern Electric Power Company has two other registered projects in the area, bringing its total local investment to over $5.7 million. Local coverage from the Marshall News Messenger noted that SWEPCO filed permits for this $2.1 million water treatment building and a separate $3.4 million administration building at the same site.

The Hallsville area, identified by ZIP code 75670, has a population of about 18,549 according to U.S. Census estimates. The median household income in this region is $39,748. The Harrison County unemployment rate was 5.2 percent in July 2026, a figure higher than a year earlier. This construction project adds to the industrial infrastructure in a community where housing is mostly owner-occupied and the median home value is $100,300.