Texas Local Government Code section 233.153 prohibits Harris County from requiring residential fire sprinklers in new one or two-family homes. The Harris County Fire Marshal applies the International Fire Code to commercial and multifamily buildings of three or more units in unincorporated areas, where sprinklers may be mandatory.
Texas Local Government Code 233.153, enacted by HB 2012 (2009), expressly bars municipalities and counties from requiring fire sprinklers in newly constructed one and two-family residential dwellings. The IRC R313 sprinkler appendix is therefore optional in Harris County. The Harris County Fire Marshal enforces the International Fire Code, adopted by Commissioners Court order, in unincorporated areas. Commercial buildings, hotels, schools, healthcare occupancies, and multifamily buildings with three or more units must follow IFC sprinkler thresholds based on size, occupancy, and use. Cities like Houston and Pasadena run separate code-enforcement programs. Insurance carriers offer premium discounts for voluntary sprinkler installation in single-family homes despite the absence of a county mandate.
Failure to install required IFC commercial sprinklers in unincorporated Harris County is a Class C misdemeanor under the adopted fire code, with fines up to two thousand dollars per day, plus possible occupancy denial by the Fire Marshal.
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Side-by-side rule comparisons with other cities in Harris County.
See how Humble's fire sprinkler requirements rules stack up against other locations.
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