Rowlett, TX Accessory Structures: Carport Rules (2026)

Rowlett treats carports and patio covers as accessory structures requiring a permit, listed alongside detached garages and gazebos in the City's Residential permitting information. They are governed by the Accessory Building Regulations (Development Code Section 77-303): the number and size of accessory structures is limited by the district's maximum lot coverage or 35 percent of the rear yard, whichever is less, and an accessory structure may not exceed the height of the main house or the district maximum. A carport in the front or side yard must meet the same front and side setbacks as the primary structure, while one in the rear yard requires a minimum three-foot side setback. The City's permit packet sets specific anchoring methods for patio covers and carports: posts must be embedded in concrete piers at least 30 inches deep and 12 inches in diameter and anchored with a Simpson CBS/CBSQ column base or equivalent (or a sealed plan from a Texas licensed engineer), all designed to resist a 115 mph wind load. Required inspections include foundation, framing, and final. If overhead power lines are present, they must meet National Electric Code clearance. Permit fees follow the accessory-building schedule: $75 for structures under 250 square feet, or $75 plus 10 cents per square foot for larger ones. A front-yard accessory structure cannot exceed seven feet in height.