Permits trip up a lot of Washington homeowners, mostly because the rules feel fuzzy until you know the one principle behind them: permits protect safety. If your project changes the structure, the electrical, the plumbing or the gas, the local building department wants to inspect it. If you're only changing how things look, they usually don't care.
Work that usually does NOT need a permit
Cosmetic, like-for-like updates that don't move anything in the walls are typically permit-free:
- Replacing cabinets in the same spots
- New countertops, sink and faucet in the existing location
- Flooring, paint, tile and backsplash
- Swapping a light fixture or appliance on existing connections
This is why a straightforward cosmetic kitchen or bath refresh often sails through without paperwork. See our guide to kitchen remodel costs in Washington for what that level of work runs.
Work that DOES need a permit
Once you change the bones of the room, plan on a permit:
- Electrical — adding circuits, moving outlets, new wiring
- Plumbing — moving a sink, adding a line, relocating a toilet
- Gas — running or moving a gas line for a range
- Structural — removing or altering walls, especially load-bearing ones
- Layout changes — opening a kitchen to a living room, enlarging a doorway, additions
Permits are local, not statewide
This is the part people miss. Permits in Washington are issued by your local city or county building department, not the state. That means the exact thresholds, fees and review timelines vary depending on whether you're in Seattle, Spokane, Tacoma or an unincorporated county. We won't quote a fee here because it genuinely differs by jurisdiction. The reliable move is to call your local building department and ask, or have your contractor do it.
Who should pull the permit
Let your contractor pull the permit. A licensed pro pulling the permit puts the responsibility for code compliance on them, and ties the inspections to their work. A permit pulled in your name as the homeowner can leave you holding the liability. Make sure your contract states clearly who is responsible. While you're vetting your contractor, verify their L&I registration — registered contractors are the ones who pull permits correctly.
How inspections work
A permitted job is inspected at key stages. For a kitchen or bath that usually means a rough-in inspection (after wiring and plumbing are run but before walls close up) and a final inspection once everything's finished. Don't let a contractor close walls before the rough-in is signed off — if an inspector can't see the work, they may make you open it back up.
The real risk of skipping a permit
Skipping a permit can feel cheaper and faster. It rarely is. Unpermitted work can lead to:
- A stop-work order and fines if you're caught mid-project
- Failed inspections that force you to redo or open up finished work
- Problems at resale — buyers' inspectors and appraisers flag unpermitted additions
- Insurance headaches if something goes wrong with uninspected wiring or plumbing
If you're deciding between hiring a single firm or a designer plus a builder, our breakdown of design-build vs a general contractor covers who typically handles permits in each setup.
The simplest path is to hire a registered contractor who handles permits as part of the job and folds them into the bid. Get free quotes from vetted Washington pros who pull permits and schedule inspections for you.