Patio 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 don’t need a Patio permit
WA (covering parts of ZIP 98012), permits are issued by the City of Bothell Permit Center, enforcing the 2021 International Codes adopted by Washington effective March 15, 2024. At-grade patios (paver, concrete, flagstone) typically don't require a building permit. Verify drainage and impervious-surface limits, which are tracked under Bothell's stormwater code (aligned with the WA Department of Ecology Stormwater Manual for Western Washington). Covered patios or pergolas may require a permit due to roof structure. Critical-areas buffers along North Creek and Sammamish River may add review.
Patio Permit Costs: Bothell vs. Nearby
| City | Estimated Fee |
|---|---|
| Bothell | N/A |
| Seattle | $150 – $750 |
| Spokane | $150 – $750 |
| Tacoma | $150 – $750 |
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
Patios contribute to impervious surface coverage on your lot. Many cities cap total impervious coverage at 40–60% of lot area. Check with your planning department before adding large hardscape areas.
If you live in an HOA community: hOAs may restrict patio materials, colors, and sizes. Covered patios and pergolas are more likely to need architectural review. Check your CC&Rs before starting, even for simple ground-level projects.
Estimated Project Timeline
Here's a typical timeline for a patio project:
Need a Patio permit?
Answer a few quick questions for a personalized answer about your specific project.
Check Now, Free →Building Department Contact
Frequently Asked Questions
Contact the building department for current Patio permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Patio 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.
Contact the building department for current processing times. Timelines vary based on project complexity and whether 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 Patio Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Patio Guide →