Plumbing Work Permit Requirements in Bothell, WA
ZIP 98012 straddles City of Bothell and unincorporated Snohomish County (Mill Creek / Canyon Park). Bothell itself spans King + Snohomish counties. Inside city limits: Bothell Permit Center. Outside city limits in 98012: Snohomish County PDS. All Bothell applications run through mybuildingpermit.com (regional portal). Electrical permits via WA L&I, not the city. 2021 International Codes effective in Bothell since March 15, 2024.
By Joey, Founder · Last verified May 28, 2026 · How we research →
When you need a Plumbing permit
WA (covering parts of ZIP 98012), plumbing permits are issued by the City of Bothell Permit Center, enforcing the 2021 Uniform Plumbing Code (UPC) which Washington adopts instead of the IPC. Plumbing rough-in, pipe relocation, water service, or sewer-lateral replacement requires a plumbing permit. WA plumbing certification (RCW 18.106) required for paid work. Apply through mybuildingpermit.com. Coordinate water/sewer with the Northshore Utility District or City of Bothell Public Works depending on address.
Plumbing Work Permit Costs: Bothell vs. Nearby
| City | Estimated Fee |
|---|---|
| Bothell | N/A |
| Seattle | $60 – $480 |
| Spokane | $50 – $600 |
| Tacoma | $50 – $385 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Bothell permit costs →
Zoning & HOA Considerations
If you live in an HOA community: plumbing work is generally interior and does not require HOA approval. However, exterior plumbing changes (new cleanouts, sewer line work, visible piping) may need review in some communities.
Estimated Project Timeline
Here's a typical timeline for a plumbing work project:
Timeline is based on the typical about 1 week permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Contact the building department for current Plumbing Work permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Plumbing Work projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Typical approval time for Plumbing Work permits is about 1 week. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Plumbing Work Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Plumbing Work Guide →