Permit Requirements: Bellevue vs Seattle
How do permit requirements rules compare between Bellevue, WA and Seattle, WA?
Bellevue and Seattle have similar restriction levels.
Bellevue, WA
King County
Bellevue requires a building permit for fences over 6 feet under the Washington State Building Code. Fences 6 feet or less need no permit. Retaining walls over 4 feet also require permits.
View full Bellevue 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 | Bellevue | Seattle |
|---|---|---|
| Permit Trigger | Over 6 feet | - |
| Retaining Walls | Over 4 feet need permit | - |
| Electric/Barbed | Prohibited residential | - |
| Apply | MyBuildingPermit portal | - |
| 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.
Bellevue FAQ
Do I need a permit for a 6-foot fence in Bellevue?
No. Fences 6 feet or shorter generally do not require a permit as long as they meet LUC 20.20.400 zoning rules.
How do I apply for a fence permit?
Apply through the MyBuildingPermit.com portal. Fees vary by fence value; structural review is required for fences over 6 feet.
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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