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Fort Worth, TX Accessory Structures: ADU Rental Restrictions (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

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

Summary

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.

(c) Habitable accessory structures. In addition to the requirements set out in subsection (a) above, habitable accessory buildings must comply with the following requirements: (1) Must meet all applicable City of Fort Worth building code for habitable structures; (2) May not exceed the height of the primary; and (3) May be used only as an accessory dwelling unit and may not be used as a separate independent residence for one-family districts.

View official code

Full Breakdown

301(c) of the Zoning Ordinance governs 'Habitable accessory structures' on residential lots in one-family districts, the category that covers garage apartments, casitas and similar living space built over or beside a detached garage, workshop or other accessory building. 301(a), a habitable one must meet the City's building code for habitable structures and cannot exceed the height of the primary home. ' Fort Worth zoning treats the ADU as legally tied to the primary home, not as a stand-alone unit that can be sold, subdivided or occupied as its own household independent of whoever lives in the main house.

301(a)(5). Because the rule is written into the zoning code rather than a lease statute, it is enforced through code compliance and the building-permit process, not through Texas landlord-tenant law.

Violations & Fines

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.

Frequently Asked Questions

Can I rent out my Fort Worth garage apartment as its own unit?
Not under the zoning code. Section 5.301(c)(3) says a habitable accessory structure 'may be used only as an accessory dwelling unit and may not be used as a separate independent residence for one-family districts,' which ties the unit to the primary home rather than letting it function as an independent rental household.
Does this rule apply to every zoning district?
It applies to one-family residential districts, where § 5.301 governs accessory buildings on residential lots; the same section counts the 'MH' manufactured-home district as residential for these purposes. Multifamily and commercial districts have their own accessory-use standards elsewhere in the Zoning Ordinance, so check the base district before assuming this exact restriction applies.
What has to happen before I build a habitable accessory structure?
Under § 5.301(c), the structure must meet the City's building code for habitable structures and cannot exceed the primary home's height, on top of the setback and lot-coverage limits in § 5.301(a) that apply to every accessory building on the lot. A building permit from Development Services is required.

Sources & Official References

Other rules in Fort Worth

ADU RulesSome RestrictionsShed & Carport RulesSome RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsFence Regulations: Retaining WallsSome RestrictionsAnimal Ordinances: Veterinary Clinic ZoningSome RestrictionsFire Regulations: Outdoor BurningHeavy RestrictionsFire Regulations: Propane StorageSome RestrictionsSign Regulations: Freeway-Facing SignsSome Restrictions

All Fort Worth rules

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