One of the most common questions we hear from Seattle homeowners: “Do I need a permit for my bathroom remodel?”
The honest answer: it depends on what you’re doing. Most bathroom remodels don’t require a permit. Some do. And doing work that requires a permit without pulling one is a mistake that can affect your home’s value and insurability for years.
Here’s the full breakdown for Seattle and the surrounding area.
When You Do NOT Need a Permit in Seattle
The City of Seattle and most surrounding jurisdictions in King and Snohomish County do not require a building permit for like-for-like replacements and cosmetic work, including:
- Replacing tile in a shower or on the floor (same footprint)
- Replacing a vanity, toilet, sink, or faucet (same location)
- Installing a new tub or shower insert in the same location
- Replacing an exhaust fan (same location, same amperage)
- Painting, refinishing, or resurfacing
- Replacing a mirror, towel bars, or accessories
The vast majority of bathroom remodels — including most tub-to-shower conversions and walk-in shower installations — fall into this category. No permit needed.
When You DO Need a Permit in Seattle
A permit is required when your project involves:
- Moving plumbing — Relocating a toilet, sink, or shower drain to a new position requires a plumbing permit and inspection
- Adding new electrical circuits — Installing heated floors, a new dedicated circuit, or upgrading the electrical panel for your bathroom requires an electrical permit
- Structural changes — Moving or removing walls, widening doorways, or cutting new openings in load-bearing elements
- Converting an unpermitted space — Adding a bathroom to a basement or non-permitted space
- New ventilation — Adding a new exhaust fan where none existed (different from replacement)
How Permits Work in Seattle
Permits in Seattle are issued by the Seattle Department of Construction and Inspections (SDCI). For bathroom work, you’ll typically need a combination permit covering plumbing and/or electrical, depending on what’s being done.
The permit process in Seattle involves:
- Application — Submit plans (often simple drawings for bathroom work) to SDCI
- Review — SDCI reviews for code compliance; straightforward bathroom permits are often over-the-counter or approved in 1–3 weeks
- Inspection — A city inspector visits during and/or after the work to verify it meets code
- Final approval — Work is signed off and recorded
For homes in Bellevue, Kirkland, Redmond, and other Eastside cities, permits are issued through the respective city’s permitting department. The requirements are similar to Seattle, though review timelines and fees vary by city.
In Snohomish County (Everett, Lynnwood, Marysville, Bothell), permits are issued through either the city or Snohomish County, depending on whether the property is within city limits.
What Happens If You Skip a Required Permit
This is where we see homeowners get into trouble. Unpermitted work in Seattle creates real problems:
- At resale: Buyers’ inspectors flag unpermitted work. You may need to tear out work, pull a retroactive permit, or reduce your sale price to compensate.
- With insurance: If a pipe bursts or a fire occurs in an area of unpermitted work, your insurer may deny the claim.
- With the city: SDCI can issue stop-work orders and require work to be exposed for inspection — meaning opening up walls you’ve already tiled.
We strongly recommend doing permitted work correctly the first time. The cost of pulling a permit is almost always less than the cost of correcting unpermitted work later.
We Handle the Permit Process for You
On any Seattle bathroom remodel that requires a permit, we manage the entire process — application, scheduling inspections, and final sign-off. You don’t have to navigate the city permit system yourself.
During your free in-home estimate, we’ll tell you upfront whether your project requires a permit, what that adds to the timeline, and exactly how we handle it.
Call (425) 426-2350 or schedule a free estimate — no permit paperwork required on your end.
Frequently Asked Questions
Do I need a permit to convert a tub to a walk-in shower in Seattle?
Usually no. If the drain stays in the same location and you’re not moving any plumbing, a tub-to-shower conversion in Seattle is typically permit-free. If the drain needs to move, a plumbing permit is required.
How much does a bathroom remodel permit cost in Seattle?
Seattle permit fees vary based on project valuation. For a typical permitted bathroom remodel, expect permit fees in the range of $200–$600. We include permit costs in our estimates for any project that requires one.
How long does it take to get a bathroom permit in Seattle?
Simple bathroom permits in Seattle are often approved over-the-counter or within 1–3 weeks. More complex projects may take longer. We account for permit timelines when scheduling your project start date.
Can I remodel my bathroom in Bellevue without a permit?
Same rules apply: cosmetic work and like-for-like replacements are generally permit-free. Work involving plumbing relocation, structural changes, or new electrical circuits requires a permit from the City of Bellevue’s permitting department.