PlainPermit

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Do I need a permit for a interior / bathroom remodel in Seattle, WA?

Last verified: · Confidence: medium · Status: Verified from official source

Not legal advice. Always confirm with your local building department. Rules change, and your parcel's zoning, HOA, historic district, floodplain or utility work can change the answer. We show the official source and the date we last checked it so you can verify for yourself.
Depends on your project Confidence: medium

No building permit for minor alterations costing $6,000 or less in any 6 months, or for finishes and cabinets. Plumbing work needs a Public Health plumbing permit; structural work always needs a permit.

What changes the answer

Cost

Fee not extracted; see SDCI's Fee Subtitle. Unverified, confirm locally

Fee source: https://www.seattle.gov/sdci/permits/do-you-need-a-permit

Where to apply

Seattle Department of Construction and Inspections (Seattle Services Portal)

Permitting authority: Seattle Department of Construction and Inspections (SDCI); plumbing permits by Public Health – Seattle & King County. Rules differ in environmentally critical areas (steep slopes, wetlands, flood-prone areas). Plumbing and gas piping permits, including water heaters, are issued by Public Health – Seattle & King County, not SDCI.

Official sources

“You don't need a permit for minor repairs or alterations that cost $6,000 or less in any 6-month period.”

Source: https://www.seattle.gov/sdci/permits/do-you-need-a-permit

“You need a permit for any work on load-bearing supports, changes to the building envelope, and work that reduces egress, light, ventilation, or fire resistance no matter how small the project.”

Source: https://www.seattle.gov/sdci/permits/do-you-need-a-permit

Verified: · Status: verified · Confidence: medium

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