Propane Storage: Redmond vs Seattle
How do propane storage rules compare between Redmond, WA and Seattle, WA?
Redmond and Seattle have similar restriction levels.
Redmond, WA
King County
Residential propane storage in King County follows the Washington-adopted International Fire Code under RCW 19.27, capping non-permitted home cylinders and requiring permits for larger tanks from the Washington State Patrol Fire Marshal or local fire authority.
View full Redmond 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 | Redmond | Seattle |
|---|---|---|
| Code basis | IFC Chapter 61 | - |
| State law | RCW 19.27 | - |
| Permit threshold | Larger stationary tanks | >125 gal water |
| Local AHJ | Serving fire district | - |
| Code | - | IFC 6101 |
| Balcony storage | - | Banned >4th floor |
| Clearance | - | 10 ft ignition |
Highlighted rows indicate differences between cities.
Redmond FAQ
How much propane can I keep at home in King County?
Small grill and patio cylinders are fine; stationary residential tanks above the IFC threshold need a permit from your local fire authority.
Who enforces propane storage rules in unincorporated areas?
The serving King County fire district enforces the International Fire Code, with statewide oversight from the Washington State Patrol Fire Marshal.
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.
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