Snohomish County plan check and resubmittal guide
What we could verify about Snohomish County’s permit office from government and permit portal pages, what Washington law says about plan check there, and how to answer a correction letter. Each fact links to its source.
Snohomish County permit office
- Planning and Development Services: 425-388-3311 (snohomishcountywa.gov, checked October 31, 2026)
- Address: 3000 Rockefeller Avenue, Everett, WA 98201 (snohomishcountywa.gov, checked October 31, 2026)
- Building department page
- Permit open data
Links and facts checked on October 28, 2026.
Codes its letters cite
Building code named on the city’s pages: 2021 International Building Code.
Local amendments to the building code
Any city or county may amend the state building code; amendments that affect houses and apartments need State Building Code Council approval first.
Snohomish County and Washington
Guides for places in Snohomish County:
Washington rules every plan check here follows
These come from Washington law and state agencies, so they apply in Snohomish County as well. Each links to its source.
Building code in force
Washington's current building code is based on the 2021 model codes and took effect on March 15, 2024.
Source: Washington State Building Code Council, checked October 31, 2026
Next edition
The next update, based on the 2024 codes, is scheduled to take effect on May 3, 2027.
Source: Washington State Building Code Council, checked October 31, 2026
Local amendments
A city or county may change the state code for its own area, but its changes cannot weaken the code's minimum standards.
Source: Washington State Legislature, RCW 19.27.040, checked October 31, 2026
Rules are locked in when you apply
A complete building permit application is reviewed under the building and zoning rules that were in effect on the date it was filed.
Source: Washington State Legislature, RCW 19.27.095, checked October 31, 2026
What a good response to Review Completion Letter has
General guidance, not Snohomish County’s own rules. Check its page before you resubmit.
- Answer every comment, in the reviewer’s order and numbering, so nothing is missed.
- Say plainly what you changed for each comment, or why no change is needed.
- Name the sheet and detail where each change is, so the reviewer can find it fast.
- Mark changes on the drawings (clouds or deltas are common) and keep sheet numbers the same.
- Send the response letter, the revised drawings and any new calculations together.
Other Washington city guides
How we help
Send us the whole Review Completion Letter. We draft a response to every comment and list the drawing changes sheet by sheet. Your first letter is free. You review each response, then you sign and submit to Snohomish County yourself.
Cleared to Build is an independent service. We are not Snohomish County and are not affiliated with it.
Upload your correction letterOnly one comment to answer? Try the free one-comment tool.
Questions
What does Snohomish County call its correction letter?
Snohomish County calls it “Review Completion Letter”.
How do I respond to Snohomish County’s Review Completion Letter?
In general, answer every comment in a response letter that says what changed and on which sheet, then resubmit the revised drawings the way Snohomish County asks. Check its own instructions first.
What should a resubmittal to Snohomish County include?
In general: a response letter answering each comment, the revised drawings with changes marked, and any new calculations or reports the comments ask for. Snohomish County may ask for more, so check with it before you send.
How long does Snohomish County take to review a resubmittal?
Review times change with workload. Ask the building department at 425-388-3311.
Does Snohomish County charge for another plan review?
This guide doesn’t list fees. Ask Planning and Development Services at 425-388-3311 before you resubmit.
How many rounds of corrections can Snohomish County send?
This guide doesn’t list a limit. Answering every comment fully the first time is the surest way to fewer rounds; ask Planning and Development Services at 425-388-3311 if unsure.
Is Cleared to Build part of Snohomish County?
No. Cleared to Build is an independent service, not affiliated with Snohomish County or any permitting agency. You submit to the city yourself.