5 county-level rules, plus city-specific rules for 1 city in Cameron County, Texas.
Verified from official government sources
Texas counties have no general zoning power, so unincorporated Cameron County sets no accessory-dwelling-unit rule. Whether you may add an ADU, garage apartment, or second home is governed by your incorporated city (Brownsville, Harlingen, San Benito) or, in the unincorporated county, only by septic and subdivision-platting requirements.
Cameron County does not regulate sheds, workshops, or detached outbuildings in unincorporated areas because Texas counties have no zoning power. Setbacks, size caps, and shed permits come from your incorporated city. Outside city limits the main county touch-points are floodplain and septic, not shed placement.
Cameron County has no ordinance on converting a garage to living space, since Texas counties cannot zone or enforce a building code in unincorporated areas. If you live inside a city, that city's zoning and building codes govern the conversion. County-wide, only septic capacity and floodplain rules may apply.
Cameron County does not regulate carports, canopies, or metal awnings in unincorporated areas because Texas counties have no zoning or building-code power. Height, setbacks, and permits for carports come from your incorporated city. Outside city limits, a carport may still need a county floodplain permit in a mapped flood zone.
Unincorporated Cameron County has no tiny-home zoning rule; Texas counties cannot set minimum house size or density outside city limits. A tiny home on a foundation still needs an approved septic (OSSF) system and a platted lot; on wheels it is treated as an RV.
1 cities in Cameron County have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Cameron County — parking, noise, fences, fires, animals, pools, and more.
Cameron County Ordinance Hub →