Permit Requirements: Renton vs Seattle
How do permit requirements rules compare between Renton, WA and Seattle, WA?
Renton and Seattle have similar restriction levels.
Renton, WA
King County
Renton requires a building permit for fences over 6 feet and retaining walls over 4 feet under RMC 4-5-060 and 4-4-040; standard residential fences up to 6 feet need no permit.
View full Renton rules →Seattle, WA
King County
Unincorporated King County requires a permit for fences over 6 ft tall and retaining walls over 4 ft. Fences at or under 6 ft usually need no permit but must meet setback and critical-area rules.
View full Seattle rules →Key Facts Comparison
| Fact | Renton | Seattle |
|---|---|---|
| No Permit | Residential fence up to 6 ft | - |
| Permit Required | Over 6 ft fence | - |
| Retaining Wall Permit | Over 4 ft or with surcharge | - |
| Pool Fence | Part of pool permit | - |
| Utility Locate | Call 811 before digging | - |
| Permit Threshold | - | Over 6 ft tall |
| Retaining Wall | - | Permit over 4 ft |
| Code | - | KCC Title 16 and 21A |
| Department | - | Permitting Division |
| Critical Areas | - | Extra review (Title 21A.24) |
Highlighted rows indicate differences between cities.
Renton FAQ
Do I need a permit for a 6-foot cedar fence?
No, a standard six-foot wood fence in a side or rear yard does not require a fence permit, provided it meets setback and sight triangle rules.
How much does a Renton fence permit cost?
Building permit fees for fences are valuation-based, typically $150 to $400 for residential taller fences plus plan review fees. Contact the permit center for a quote.
Seattle FAQ
Do I need a permit for a 6-foot wood fence in unincorporated King County?
Generally no. Fences 6 feet or less in height typically do not require a building permit, but they must still meet zoning setbacks and any critical-area rules under KCC Title 21A.
Who issues fence permits for unincorporated King County?
The King County Department of Local Services, Permitting Division at 206-296-6600. Applications require a site plan and, for tall fences, structural details.
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