Dallas County, TX Permit Requirements: Deck & Patio Permits (2026)

In the City of Dallas, decks constructed more than 30 inches above adjacent grade require a building permit with construction plans showing structural details, footings, railings, and ledger board connections. Covered patios, pergolas attached to the house, and any structure that creates an enclosed or semi-enclosed space require permits. Ground-level concrete patios, paver installations, and freestanding platforms under 30 inches do not typically require building permits. Decks attached to the house must properly connect to the structure per the International Residential Code. All deck railings must be 36 inches tall (for decks up to 30 inches above grade) or 42 inches (for higher decks) with baluster spacing no greater than 4 inches. Electrical outlets on decks require GFCI protection and a separate electrical permit. The city follows the IRC with local amendments under Chapter 52. Other municipalities within Dallas County have similar requirements but may vary in thresholds and processes. For unincorporated Dallas County, the county's limited authority means fewer requirements, though basic safety standards apply.