Regulatory framework
The code baseline for Starr County.
N/A - Starr County operates a rural building-permit and code-inspection program and requires new construction in unincorporated areas to meet applicable state minimum standards, but its rebuilt 2026 official website does not publish the currently adopted IRC, IBC, electrical, plumbing, mechanical, energy, or fire-code editions. Floodplain development is administered by the county's designated inspector under its NFIP participation. OSSF permitting is handled through the Planning Department under Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285. Municipalities including Rio Grande City, Roma, and La Grulla enforce their own ordinances within their jurisdictions.