Permit Requirements: Kent vs Seattle
How do permit requirements rules compare between Kent, WA and Seattle, WA?
Kent and Seattle have similar restriction levels.
Kent, WA
King County
Kent requires a building permit for fences over 7 feet tall or for any fence on critical area or shoreline parcels. Fences under 7 feet generally do not require a permit but must meet KCC 15.08 height limits.
View full Kent 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 | Kent | Seattle |
|---|---|---|
| No Permit Needed | Under 7 feet | - |
| Permit Needed | Over 7 feet or critical area | - |
| Planning Desk | (253) 856-5454 | - |
| Code | KCC 15.08 / WAC 51-50 | KCC Title 16 and 21A |
| Permit Threshold | - | Over 6 ft tall |
| Retaining Wall | - | Permit over 4 ft |
| Department | - | Permitting Division |
| Critical Areas | - | Extra review (Title 21A.24) |
Highlighted rows indicate differences between cities.
Kent FAQ
Do I need a permit for a fence in Kent?
Only for fences over 7 feet tall or in shoreline or critical area zones. Most residential fences under 7 feet are permit-exempt but still zoning-regulated.
Who do I call about Kent fence rules?
Kent Current Planning Division at (253) 856-5454 for zoning questions and sight-triangle checks before installation.
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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