Brush Clearance: Renton vs Seattle
How do brush clearance rules compare between Renton, WA and Seattle, WA?
Renton and Seattle have similar restriction levels.
Renton, WA
King County
Renton requires vegetation management as a nuisance matter under RMC 1-3-3. Wildland-urban interface areas around May Creek and Cedar River require 30-foot defensible space under IFC Chapter 49.
View full Renton rules →Seattle, WA
King County
King County has no mandatory annual brush clearance ordinance like California. In Wildland Urban Interface areas, defensible space up to 100 ft is enforced on new construction through the adopted IWUIC.
View full Seattle rules →Key Facts Comparison
| Fact | Renton | Seattle |
|---|---|---|
| Nuisance Code | RMC 1-3-3 | - |
| WUI Code | IFC Chapter 49 via RMC 4-5-070 | - |
| Defensible Space | 30 feet minimum from structures | - |
| Critical Areas | RMC 4-3-050 may restrict clearing | Clearing permit needed |
| Assessments | Free from Renton RFA | - |
| Mandatory Annual | - | No countywide rule |
| WUI | - | 100 ft defensible space |
| Burn Bans | - | PSCAA + Fire Marshal |
| Program | - | Firewise USA |
Highlighted rows indicate differences between cities.
Renton FAQ
How much brush must I clear around my Renton home?
In WUI areas maintain 30 feet of defensible space with Zone 1 noncombustible, Zone 2 thinned, and Zone 3 reduced fuel loads per IFC Chapter 49.
Can I clear brush in a critical area buffer?
Not without review. Wetland, stream, and steep slope buffers under RMC 4-3-050 restrict vegetation removal even for fire safety. Contact CED first.
Seattle FAQ
Do I have to clear brush around my house in unincorporated King County?
No general annual mandate exists, but the IWUIC requires defensible space at permit for new construction in WUI areas, and the Fire Marshal can order abatement when vegetation creates an imminent fire hazard.
Can I just cut down trees to clear brush?
Not without checking critical-area rules. Clearing over 7,000 square feet or removing significant trees in wetland, stream, or steep-slope buffers requires a clearing and grading permit under KCC 16.82 and 21A.24.
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