Propane Storage: San Francisco vs Seattle
How do propane storage rules compare between San Francisco, CA and Seattle, WA?
San Francisco and Seattle have similar restriction levels.
San Francisco, CA
San Francisco County
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.
View full San Francisco rules →Seattle, WA
King County
The Seattle Fire Code, based on IFC Chapter 61 and amended in SMC Title 22, caps propane cylinder storage at residences and businesses. Cylinders larger than 10 gallons require permits; multifamily storage is tightly limited.
View full Seattle rules →Key Facts Comparison
| Fact | San Francisco | Seattle |
|---|---|---|
| Residential cap | 25 gallons aggregate | - |
| Code chapter | SF Fire Code 61 | - |
| Setback | 5 feet from openings | - |
| Indoor storage | Prohibited | - |
| Code | - | IFC 6101 |
| Permit threshold | - | >125 gal water |
| Balcony storage | - | Banned >4th floor |
| Clearance | - | 10 ft ignition |
Highlighted rows indicate differences between cities.
San Francisco FAQ
How many BBQ propane tanks can I keep at home?
Up to about 25 gallons aggregate, roughly two standard 20-pound exchange tanks plus a small reserve. Tanks must be stored outdoors or in detached, well-ventilated areas, never inside the home.
Can I keep propane in my apartment?
No. SF Fire Code prohibits LPG cylinders inside dwelling units. Multi-unit buildings must use approved exterior enclosures, and many SF condo HOAs further restrict balcony storage to small one-pound canisters.
Seattle FAQ
Can I store a propane tank on my apartment balcony?
Only on balconies at or below the fourth floor, and only one 20 lb cylinder. Storage inside the unit is prohibited under Seattle Fire Code.
Do I need a permit for a backyard propane tank?
Most residential cylinders under 100 lb total need no permit. Larger fixed tanks for heating or generators require an SFD permit and inspection.
Compare other topics
See how San Francisco and Seattle compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool