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Harris County, TX Fire Regulations: Propane Storage (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Residential exemption threshold
500 gallons water capacity
Applies to
Individual or aggregate container systems
Exempt occupancy
Group R-3 (single-family homes)
Enforcing agency
Harris County Fire Marshal's Office
Over-threshold requirement
Operational permit required

Summary

In unincorporated Harris County, an operational fire permit covers LP-gas storage, but homes are exempt if their tank system tops out at 500 gallons water capacity, individually or combined.

City-specific rules exist: Houston, and Baytown have their own propane storage rules that differ from Harris County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

105.5.29 LP-gas. An operational permit is required for: 1. Storage and use of LP-gas. Exception: A permit is not required for individual containers with a 500-gallon (1893 L) water capacity or less or multiple container systems having an aggregate quantity not exceeding 500 gallons (1893 L), serving occupancies in Group R-3.

Source: Harris County Fire MarshalView official code

Full Breakdown

The Harris County Fire Code (adopted 2021 IFC with county amendments) requires an operational permit from the Fire Marshal's Office for storage and use of LP-gas. Single-family homes (Group R-3) are carved out of that permit requirement as long as the propane system stays at or under 500 gallons of water capacity: whether that's one tank or several tanks added together. Cross the 500-gallon aggregate and the property needs a permit before the gas supplier can fill the tank, the same as a commercial LP-gas installation.

Violations & Fines

Storing or using LP-gas without a required permit is a Fire Code violation: a misdemeanor punishable by a fine up to $500, with each day the violation continues after notice counted as a separate offense.

Frequently Asked Questions

Do I need a permit for a 500-gallon propane tank at my house?
No. Harris County's Fire Code exempts individual or combined LP-gas systems of 500 gallons water capacity or less serving a single-family (R-3) home from the operational permit requirement.
What if I have two 250-gallon tanks?
They're counted together. Multiple containers serving one R-3 home are measured as an aggregate, so two 250-gallon tanks (500 gallons total) still fall under the exemption.

Sources & Official References

Other rules in Harris County

Smoke DetectorsSome RestrictionsOutdoor BurningLight RestrictionsFireworksLight RestrictionsWildfire ZonesFew RestrictionsParking Rules: Towing & Impound RightsSignificant RestrictionsAnimal Ordinances: MicrochippingSome RestrictionsLandscaping Rules: Tree TrimmingSome RestrictionsHoliday Decorations: Lawn Ornament RulesSome RestrictionsSign Regulations: Window SignsLight RestrictionsTree Protection: Protected Tree SpeciesSome Restrictions

All Harris County rules

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