Building Safety in San Marcos, TX (2026)
4 verified building safety rules for San Marcos, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Carbon Monoxide Detectors
San Marcos requires smoke and carbon monoxide detectors in every permitted short-term rental as a condition of the life-safety standards in its rental ordinance.
San Marcos CO Detector Rule for Short-Term Rentals
Some RestrictionsSan Marcos City Code § 34.809(d)(3)
(3)Smoke and carbon monoxide detectors shall be installed and conform to all applicable city-adopted codes, regulations, and ordinances.
Building Permits
San Marcos requires a building permit before any work covered by the adopted building code begins, and issuance is conditioned on state-law compliance plus an approved final plat, floodplain permit, and site development permit where applicable.
San Marcos Building Permit Requirement
Some RestrictionsSec. 14.451
(a)It is unlawful for a person to perform any work requiring a building permit under the terms of this chapter without first applying for and obtaining a building permit for the work. (b)Before a building permit is issued, all state regulations and laws shall be met, and a final plat, floodplain permit, and site development permit, if required, shall have been approved and filed for record.
Electrical Permits
San Marcos requires a licensed electrical contractor (or exempt homeowner) to obtain a building electrical permit before wiring work, under the locally amended 2020 NEC.
San Marcos Electrical Permit Rules
Some RestrictionsSan Marcos City Code Sec. 14.370
A person applying for a building (electrical) permit shall be: (1) A licensed electrical contractor under state law; or (2) Exempt under state law from the licensing requirement. A state licensed electrical contractor shall register with the city once a year and show proof of the state license and insurance before any work is performed within the city.
Plumbing Permits
San Marcos requires a building (plumbing) permit before any plumbing work, issued only to a state-licensed master plumber or an exempt homeowner doing their own work.
San Marcos Plumbing Permit Rules
Some RestrictionsSan Marcos City Code § 14.103
(a)A person applying for a building (plumbing) permit shall be: (1)A licensed master plumber under state law; or (2)Exempt from the state licensing law; (b)A state licensed master plumber shall register with the city once a year and show proof of the license and insurance before any work is performed within the city or on pipes connected to the city's water or wastewater service...