Dallas County, TX Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Single-family
- Sprinklers optional, preempted
- Multifamily code
- NFPA 13R required
- Commercial code
- NFPA 13 per IFC
- Authority
- Dallas County Fire Marshal
Summary
Texas amended IRC R313 to make residential fire sprinklers optional for one- and two-family homes. Dallas County does not require home sprinklers in unincorporated areas, but commercial and multifamily projects must follow IFC and IBC sprinkler rules.
Sec. 233.061. AUTHORITY TO ADOPT AND ENFORCE FIRE CODE. (a) The commissioners court of a county with a population of over 250,000 or a county adjacent to a county with a population of over 250,000 may adopt a fire code and rules necessary to administer and enforce the fire code.(b) The commissioners court, or any municipality in the county, may contract with one another for the administration and enforcement of the fire code. Added by Acts 1989, 71st Leg., ch. 296, Sec. 1, eff. Jan. 1, 1991. Amended by Acts 1997, 75th Leg., ch. 598, Sec. 1, eff. June 11, 1997. Renumbered from Sec. 235.001 by Acts 2001, 77th Leg., ch. 1420, Sec. 12.003(4), eff. Sept. 1, 2001.
Sec. 233.0615. DEFINITION
Full Breakdown
Texas Local Government Code 233.153 prohibits cities and counties from mandating fire sprinklers in new one- and two-family dwellings, overriding IRC R313. Builders may install sprinklers voluntarily, and lenders or insurers may incentivize them. For commercial buildings, multifamily housing of three or more units, and high-occupancy assemblies, the IFC and IBC sprinkler thresholds still apply when adopted by the county. Dallas County Fire Marshal reviews unincorporated commercial and multifamily plans, requiring NFPA 13 or 13R systems where the code triggers. Existing buildings undergoing major renovation may require retrofits.
Violations & Fines
Code violations on commercial or multifamily sprinkler systems carry Class C misdemeanor fines up to 2,000 dollars per day plus potential occupancy denials. Single-family violations cannot be enforced by the county due to state preemption.
Frequently Asked Questions
Can Dallas County require sprinklers in my new home?
Do apartment buildings need sprinklers?
Sources & Official References
Other rules in Dallas County
Texas rules heatmap·Compare Dallas County to another location·View the Texas building safety overview
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