I do a lot of research regarding properties in Snohomish County. This is my list of sites I use regularly.

Well Info

Washington State Department of Ecology

Snohomish County General Research

Snohomish County GIS Maps:

• PDS Map Portal
• Interactive Maps Site
• Snohomish County Property Info Map
• Snohomish County Permit, Planning and Zoning Map

Snohomish County:

• Snohomish County Assessor
• Snohomish County Health District, Drainfield Records
• Snohomish County Recorded Documents
• County Health District, Permit Application Status

Snohomish County Permits and Permit Tracking

• Snohomish County Permit Forms
• Snohomish County Permit Status 
• Old PDS Site Status Check
• New MyBuildingPermit.com Dashboard
• Estimated Permit Review Times

City of Arlington

• Status Search On This Page

City of Edmonds:

• Permit Status Site

City of Everett:

• Permit Site
• Permit Status
• Zoning Map

City of Lake Stevens

• Permit Status

City of Lynnwood:

• Permits

Island County:

• Planning Department
• As-Builts
• Interactive Maps

Other Stuff

• USDA Loan Eligibility Map
• Washington Secretary of State’s Corporation Search