Tomball, TX Accessory Structures: Carport Rules (2026)

Tomball regulates carports as accessory structures under Chapter 14 (Buildings) and Chapter 30 (Zoning). A building permit is required for carport construction. Carports must comply with the same setback requirements as other accessory structures, typically a minimum of 5 feet from side and rear property lines. Front yard setback requirements for the zoning district apply; carports in front yards may not be permitted in some residential districts. The carport footprint counts toward the maximum lot coverage percentage for the zoning district. Construction must comply with the International Residential Code as adopted by the city, including wind load design requirements appropriate for the Texas Gulf Coast region. The structure must be properly anchored to resist wind uplift. Roofing materials and design should be compatible with the primary dwelling. Metal carports, while common in Texas, must still meet building code structural requirements and zoning district aesthetic standards. Carports attached to the house are considered part of the primary structure for setback purposes and must meet the main building setback rather than the accessory structure setback. Freestanding carports in the rear yard are subject to accessory structure setbacks. Carports cannot be enclosed on all sides without being reclassified as garages, which have different requirements. Electrical service to the carport for lighting requires an electrical permit.