Renovation Permits: Kent vs Seattle
How do renovation permits rules compare between Kent, WA and Seattle, WA?
Kent and Seattle have similar restriction levels.
Kent, WA
King County
Most renovation work in unincorporated King County requires a building permit. Cosmetic work (painting, flooring, cabinets) is exempt. Structural, electrical, plumbing, and mechanical work all require permits. King County adopts the Washington State Building Code, based on the International Residential Code.
View full Kent rules →Seattle, WA
King County
Seattle requires construction permits for most home renovations including structural changes, electrical work, plumbing, HVAC, and adding/removing walls. Minor cosmetic work like painting and replacing fixtures generally does not require permits.
View full Seattle rules →Key Facts Comparison
| Fact | Kent | Seattle |
|---|---|---|
| Exempt Work | Painting, flooring, cabinets | - |
| Always Needs Permit | Structural, electrical, plumbing | - |
| Apply Online | MyBuildingPermit.com | - |
| Plan Review | 3–6 weeks typical | - |
| Structural Changes | - | Permit required |
| Cosmetic Work | - | Generally no permit needed |
| STFI Permits | - | Same-day for simple projects |
| Full Review | - | Several weeks processing |
Highlighted rows indicate differences between cities.
Kent FAQ
Do I need a permit to renovate my house in King County?
It depends on the work. Cosmetic changes (paint, flooring, cabinets) do not require permits. Structural modifications, electrical, plumbing, HVAC, roofing, and additions all require building permits through King County.
How do I apply for a renovation permit in King County?
Apply online through MyBuildingPermit.com or at King County's Department of Local Services. Simple projects may qualify for express permits; complex renovations require plan review, typically 3–6 weeks.
Seattle FAQ
What home renovations require a permit in Seattle?
Structural changes, electrical/plumbing/HVAC work, window size changes, additions, basement conversions, and ADU construction all require permits. Painting, flooring, and fixture replacements generally do not.
How long does it take to get a renovation permit in Seattle?
Subject-to-field-inspection permits can be issued same-day. Full plan review permits may take several weeks depending on project complexity and current workload.
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