Accessory Structures in Fort Worth, TX

If you live in Fort Worth or are thinking about moving there, accessory structures are one of those things you probably won't think about until they affect you directly. Fort Worth has 3 specific rules on the books covering different aspects of accessory structures, and some of them might surprise you.

ADU Rental Restrictions

Fort Worth lets homeowners build a habitable accessory structure, a garage apartment or casita, but Zoning Ordinance § 5.301(c)(3) limits what it can be used for: only as an accessory dwelling unit, never as a separate independent residence in one-family districts. That single sentence is the legal barrier to renting the unit out on its own.

Key details: Governing section: Zoning Ordinance § 5.301(c)(3). Allowed use: Accessory dwelling unit tied to primary home. Prohibited use: Separate independent residence in one-family districts. Applies to: Habitable accessory structures (garage apartments, casitas). Height cap: May not exceed height of primary structure.

Code Compliance can cite a property where the accessory structure is rented, sold or occupied as an independent household separate from the primary residence, since § 5.301(c)(3) ties the unit's legal use to the main house. A verified violation can lead to a zoning enforcement notice, a required correction of the use, and, if unresolved, referral to municipal court.

This is one of the stricter rules in Fort Worth's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

ADU Rules

An accessory dwelling unit in Fort Worth is a habitable accessory structure under Zoning Ordinance § 5.301, and it has to clear three hurdles before anyone can move in: the same side and rear setback and lot-coverage limits that apply to every accessory building, the City's building code for habitable space, and a height cap that never exceeds the primary house.

Key details: Governing section: Zoning Ordinance § 5.301(a) and (c). Setbacks: Match primary structure's side/rear setback. Lot coverage: Counts toward district's max rooftop coverage. Height cap: Cannot exceed height of primary residence. Building code: Must meet code for habitable structures.

Building a habitable accessory structure that exceeds the primary home's height, sits inside the required setback, or pushes the lot past its coverage cap is a zoning violation Code Compliance can order corrected, including removal of the noncompliant portion. Occupying the unit before it passes building-code inspection for habitable space under § 5.301(c)(1) can also draw a certificate-of-occupancy hold.

Shed & Carport Rules

Fort Worth requires a building permit for all sheds regardless of size per the Development Services Department. Sheds must comply with Zoning Ordinance Section 5.301 setback requirements for accessory structures and cannot exceed the height of the primary structure.

Key details: Permit Required: All sheds, any size. Setbacks: 5 ft from rear/side lines. Location: Rear/side yard only. Code Section: Zoning Ord. §5.301.

Building without a permit: fine up to $500 per day. May be required to remove unpermitted structures.

The Bottom Line

Fort Worth's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Fort Worth is broadly strict or permissive.

This guide is based on Fort Worth's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.