San Francisco's Fire Regulations: The Rules That Matter
Every city handles fire regulations a little differently. In San Francisco, California, there are 8 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.
Wildfire Zones
San Francisco has minimal designated State Responsibility Area wildfire hazard zones due to its dense urban character. Cal Fire Fire Hazard Severity Zone maps show only small areas near Mt. Davidson, Twin Peaks, and the Presidio edges as moderate/high wildfire risk. Defensible-space rules apply in those few zones.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [San Francisco code enforcement](https://osfm.fire.ca.gov/what-we-do/community-wildfire-preparedness-and-mitigation/fire-hazard-severity-zones) directly for current fines, enforcement procedures, and hearing options.
San Francisco is more permissive than most cities when it comes to wildfire zones. That said, there are still limits.
Fireworks
San Francisco Police Code Article 9 and the SF Fire Code prohibit the sale, possession, and discharge of all fireworks within city limits, including state-approved Safe and Sane fireworks legal elsewhere in California.
Key details: Code sections: Police 4501, Fire 5601. Minimum fine: $1,000. Safe and Sane status: Banned in SF. Enforcer: SFFD and SFPD.
Possession, sale, or discharge of any fireworks; selling Safe and Sane fireworks; using sparklers; and unlicensed pyrotechnic displays draw fines and potential criminal charges.
Compared to other cities, San Francisco takes a harder line on fireworks. The enforcement and penalty structure reflects that.
Outdoor Burning
San Francisco Fire Code Section 307 and Bay Area Air Quality Management District rules ban open outdoor burning of yard waste, debris, and trash citywide. Recreational fire features have narrow exceptions under SFFD permit.
Key details: Code section: SF Fire Code 307. Air authority: BAAQMD Regulation 5. Beach exception: Ocean Beach fire rings. Min fine: $100 first offense.
Burning yard waste, trash, or construction debris; using wood fireplaces on Spare-the-Air days; and unpermitted outdoor wood fires draw BAAQMD fines and SFFD enforcement.
This is not one of those rules that cities tend to ignore. San Francisco actively enforces its outdoor burning requirements.
Propane Storage
San Francisco Fire Code Chapter 61 limits residential propane (LPG) cylinder storage to small portable tanks for grills and patio heaters, with strict ventilation, distance, and quantity rules to prevent fire hazards.
Key details: Residential cap: 25 gallons aggregate. Code chapter: SF Fire Code 61. Setback: 5 feet from openings. Indoor storage: Prohibited.
Indoor propane storage, exceeding the 25-gallon residential limit, blocking ventilation, or storing tanks near windows triggers SFFD red-tag and removal orders.
Backyard Fires
Open burning is prohibited in San Francisco under Fire Code Section 307 and BAAQMD Regulation 5. Only contained recreational fires in approved appliances with clean fuel are allowed. Fire pits, chimineas, and propane heaters are regulated, and spare-the-air days ban all solid-fuel burning.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [San Francisco code enforcement](https://codelibrary.amlegal.com/codes/san_francisco/latest/sf_fire/0-0-0-1) directly for current fines, enforcement procedures, and hearing options.
This is one of the stricter rules in San Francisco's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
Smoke Detectors
San Francisco Housing Code Section 1301 and California Health & Safety Code 13113.7 require working smoke alarms in every bedroom, outside each sleeping area, and on every floor. Hardwired with battery backup is required for new construction; 10-year sealed battery alarms acceptable for existing single-family homes.
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Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact [San Francisco code enforcement](https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=13113.7.&lawCode=HSC) directly for current fines, enforcement procedures, and hearing options.
This is one of the stricter rules in San Francisco's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
Brush Clearance
San Francisco Fire Code Section 4906 requires defensible space and vegetation management on properties adjacent to wildland-urban interface zones, including Mount Davidson, Twin Peaks, and Glen Canyon Park edges.
Key details: Zone 1 distance: 30 feet. Zone 2 distance: 100 feet. State authority: PRC Section 4291. Inspector: SFFD Fire Prevention.
Failure to clear dry vegetation, dead trees, or accumulated debris in defensible space zones, especially before fire season, prompts SFFD notice and potential abatement charges.
Fire Pit Rules
Outdoor fire pits burning wood or solid fuels are prohibited on Spare the Air Alert days under BAAQMD Regulation 6, Rule 3. In the dense urban environment of San Francisco, open fires are effectively banned year-round by a combination of BAAQMD restrictions and SF Fire Code. Gas-fueled fire pits are allowed when not prohibited by building rules. Beach fires at Ocean Beach are banned by the National Park Service.
Key details: Wood-Burning Fire Pits: Banned on Spare the Air days. Gas Fire Pits: Allowed (building rules may vary). Ocean Beach: All fires banned (NPS). Authority: BAAQMD Reg. 6, Rule 3.
Illegal burning: $100 to $1,000. Causing fire: criminal charges possible. CA PRC §4423: up to $1,000 + 6 months.
This is not one of those rules that cities tend to ignore. San Francisco actively enforces its fire pit rules requirements.
The Bottom Line
San Francisco is tougher than many cities when it comes to fire regulations. Out of the 8 rules covered here, 5 are rated strict. If you are a homeowner, renter, or business owner in San Francisco, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.
Keep in mind that San Francisco can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.