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Fire Regulations in San Diego County, CA (2026)

7 county-level rules, plus city-specific rules for 10 cities in San Diego County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of San Diego County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Fire Pits & Backyard Fires

Portable outdoor fireplaces and fire pits in unincorporated San Diego County must stay at least 15 feet from structures and combustibles, except at one- and two-family homes, and someone must watch the fire until it's fully out.

San Diego County Fire Pit Setback Rules

Some Restrictions

San Diego County Code § 96.1.307.4.3

Sec. 307.4.3 Portable outdoor fireplaces. Portable outdoor fireplaces shall be used in accordance with the manufacturer's instructions and shall not be operated within 15 feet (3048 mm) of a structure or combustible material or combustible materials. Exception: Portable outdoor fireplaces used at one-and two-family dwellings. All "warming fires", by which open burning of wood, shall have instal...

Fireworks

In unincorporated San Diego County, manufacturing, possessing, selling, or distributing fireworks without a Fire Warden-issued permit is unlawful under County Code Section 32.104.

San Diego County Fireworks Permit Rules

Significant Restrictions

San Diego County Code § 32.104

SEC. 32.104. PERMITS REQUIRED FOR MANUFACTURE, POSSESSION, SALE AND DISCHARGE OF FIREWORKS. (a) It shall be unlawful for any person to manufacture, possess, sell or distribute fireworks in the unincorporated area of the County without a permit issued by the Issuing Officer.

Brush Clearance

Unincorporated San Diego County requires 100 feet of defensible space around structures under the Defensible Space for Fire Protection Ordinance (County Code Ch. 4, Div. 8, Title 6). Combustible vegetation, dead trees, and rubbish must be cleared within 100 feet of improvements, 30 feet of property lines, and 10 feet of roads. Violations are a public nuisance.

San Diego County Brush Clearance Rules

Light Restrictions

California Public Resources Code § 4291 (defensible space — 100 feet around structures in state responsibility areas)

99] ( Chapter 3 added by Stats. 1965, Ch. 1144. ) 4291. (a) A person who owns, leases, controls, operates, or maintains a building or structure in the state responsibility area shall at all times do all of the following: (1) (A) Maintain defensible space of 100 feet from each side and from the front and rear of the structure, but not beyond the property line, except as provided in subparagraph ...

Outdoor Burning

In unincorporated San Diego County, open burning, bonfires, recreational fires, and portable outdoor fireplaces must have an adult in constant attendance until fully extinguished, with an approved fire extinguisher or other suppression equipment on site the whole time.

San Diego County Open Burning Attendance Rule

Some Restrictions

San Diego County Code § 96.1.307.5

Sec. 307.5 Attendance. Open burning, bonfires, recreational fires and the use of portable outdoor fireplaces shall be constantly attended by an adult until the fire is extinguished. Not fewer than one portable fire extinguisher complying with section 906 with a minimum 4-A rating or other approved on-site fire-extinguishing equipment, such as dirt, sand, water barrel, garden hose or water truck...

Wildfire Zones

Most of unincorporated San Diego County is mapped as a Very High Fire Hazard Severity Zone and Wildland-Urban Interface (WUI) area. The County Consolidated Fire Code imposes WUI building standards, 100-foot defensible space, structure setbacks, and ignition-resistant construction. CAL FIRE and the County Fire Authority enforce these rules.

San Diego County Wildfire Zone Rules

Some Restrictions

CAL FIRE Office of the State Fire Marshal — Fire Hazard Severity Zones (Public Resources Code §§ 4201–4204; Gov. Code §§ 51175–51189)

ed mapping across California under the California Public Resources Code 4201-4204, encompassing all State Responsibility Areas (SRA). What are Fire Hazard Severity Zones? The State Fire Marshal is mandated to classify lands within State Responsibility Areas into Fire Hazard Severity Zones (FHSZ). Fire Hazard Severity Zones fall into one of the following classifications: Moderate High Very High ...

Smoke Detectors

In unincorporated San Diego County, newly constructed or fully renovated mid-rise buildings (4 or more stories, up to 75 feet) must install smoke detectors wired into the building's automatic fire alarm system.

San Diego County Mid-Rise Smoke Detection Rule

Some Restrictions

San Diego County Code § 96.1.324 (CFC § 324.1.2)

Sec. 324.1.2 Smoke detection. Smoke detectors shall be provided in accordance with this section. Smoke detectors shall be connected to an automatic fire alarm system and shall be installed in accordance with the NFPA 72 edition as referenced in Chapter 80 of CFC... Smoke detectors shall be located as follows: 1. In every mechanical equipment, electrical, transformer, telephone equipment, unmann...

Propane Storage

Unincorporated San Diego County bans bulk liquefied petroleum gas storage countywide except in mixed, general, or high-impact industrial zones; up to 30,000 gallons aggregate water capacity is allowed for above-ground tanks serving residential distribution systems.

San Diego County Bulk LP-Gas Storage Geographic Limits

Significant Restrictions

San Diego County Code § 96.1.005(d)

(d) Sec. 6104.2 The geographic limits in which the bulk storage of liquefied petroleum gas is prohibited for the protection of heavily populated and congested areas: the unincorporated area of the County of San Diego, except for areas zoned for mixed, general or high impact industrial uses. Exception: Bulk tanks with a maximum aggregate capacity of 30,000 gallons water capacity for above-ground...

Fire Regulations by City in San Diego County

10 cities in San Diego County have their own fire regulations rules. Each link goes to that city's dedicated page with code citations.

All San Diego County ordinances

See every category we cover for San Diego County: parking, noise, fences, fires, animals, pools, and more.

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