Wildfire Zones: Renton vs Seattle
How do wildfire zones rules compare between Renton, WA and Seattle, WA?
Renton has fewer restrictions than Seattle.
Renton, WA
King County
Renton has wildland-urban interface areas along Cedar River, May Creek, and Cougar Mountain foothills. IFC Chapter 49 defensible space rules apply via RMC 4-5-070. WA DNR maps guide risk.
View full Renton rules →Seattle, WA
King County
Eastern unincorporated King County (Skykomish, Snoqualmie, foothills) is mapped by WA DNR as moderate to high wildfire hazard. The Wildland Urban Interface code requires ignition-resistant materials and defensible space.
View full Seattle rules →Key Facts Comparison
| Fact | Renton | Seattle |
|---|---|---|
| Code | IFC Chapter 49 via RMC 4-5-070 | 2021 IWUIC |
| At-Risk Areas | Cedar River, May Creek, Cougar Mtn foothills | - |
| Roofing | Class A or B required in WUI | Class A required |
| Venting | Ember-resistant vents required | - |
| Resource | WA DNR Wildfire Hazard Portal | - |
| High Hazard Areas | - | Skykomish, Snoqualmie |
| Defensible Space | - | 100 ft zones 1-3 |
| Fire Marshal | - | 206-296-6533 |
Highlighted rows indicate differences between cities.
Renton FAQ
Is my Renton home in a WUI zone?
Check WA DNR Wildfire Hazard Potential maps and call Renton RFA for a home assessment. Homes near Cedar River, May Creek, or eastern forested areas are most commonly flagged.
What building upgrades help in WUI areas?
Class A roofing, ember-resistant vents, noncombustible siding within 5 feet, gutter guards, and clearing of vegetation within 30 feet are the priority upgrades.
Seattle FAQ
Is my King County property in a wildfire hazard zone?
Check the WA DNR Wildfire Hazard Map or call the King County Fire Marshal at 206-296-6533. Foothill and Cascades properties are commonly mapped as moderate or high hazard and subject to WUI construction standards.
What defensible space is required near my home?
Zone 1 (0-5 ft) noncombustible, Zone 2 (5-30 ft) lean/clean/green with reduced fuels, and Zone 3 (30-100 ft) thinned with ladder fuels removed. These align with IWUIC and DNR Firewise standards.
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