Harris County, TX Building Safety: Building Permits (2026)
Key Facts
- Single-family remodels
- Follow state residential code, not county
- County permit needed for
- Commercial, public and 4+ unit buildings
- Issuing authority
- Harris County Engineer's office
- Floodplain trigger
- Cost exceeds 50% of building value
- Stop-work fine
- $200-$500 plus court costs
Summary
In unincorporated Harris County, interior home renovations aren't governed by a county building code. Harris County Fire Code Sec 102.5 hands residential construction entirely to the State of Texas and the County Engineer's floodplain rules, so there's no separate county renovation permit for an ordinary remodel.
102.5 Application of residential code. Regulated by the State of Texas and the Harris County Floodplain per the County Engineer as appointed by Commissioners Court.
Full Breakdown
Harris County's Fire Code (Ch. 38) is the county's construction-permit chapter, but Sec 101.2, Exception 1 excludes one- and two-family dwellings up to three stories, routing them instead to the state's Local Government Code Ch. 233, Subchapter F residential code. Sec 102.5 confirms residential construction 'is regulated by the State of Texas and the Harris County Floodplain per the County Engineer', not a county building-permit desk. The County Engineer's construction permits (Sec 105.1.1, 105.6.25) instead cover public buildings, commercial establishments, and multifamily dwellings, and a floodplain development permit is still required if the renovation reaches the 'Substantial Improvement' cost threshold.
Violations & Fines
Renovating a commercial building, multifamily property, or a floodplain 'Substantial Improvement' without the required County Engineer permit can draw a stop-work order under Sec 113; continuing work after one is issued carries a $200-$500 fine plus court costs.
Frequently Asked Questions
Do I need a county permit to remodel my house in unincorporated Harris County?
What if my renovation is in the floodplain?
Does this apply inside Houston?
Sources & Official References
Other rules in Harris County
Texas rules heatmap·Compare Harris County to another location·View the Texas building safety overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.