Accessory Structures in Harlingen, TX (2026)
2 verified accessory structures rules for Harlingen, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Harlingen's zoning code bars accessory buildings from ever being used as a residence, blocking garage apartments and backyard ADUs citywide.
Harlingen Bans Accessory Dwelling Units
Heavy RestrictionsCity Code § 111-302
an accessory building may never be used as a main building for residential use. ... an accessory building is a subordinate building, smaller in both size and scale than the main building, detached from the main building, without separate bath or kitchen facilities, not used for commercial purposes and not rented or leased.
Shed & Carport Rules
Harlingen requires a special use permit for any portable or storage building over 144 square feet in a residential zone, on top of standard setback rules.
Harlingen Shed Permit Size Threshold
Significant Restrictions§ 111-303
A portable building larger than 144 square feet in size in a residential zone shall require a special use permit as set forth in section 111-413. A portable building of any size located in any other designated zone shall require a special use permit.
Looking for Cameron County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Harlingen city rules.
Accessory Structures in Cameron County →