Washington County
Oregon
Last verified September 16, 2026
Washington County is a county in Oregon, with property values assessed by County Assessor Joe Nelson. Use the search tools below to look up property assessments, recorded deeds, and court documents for Washington County.
County Assessor
- Official
- Joe Nelson
- Phone
- 503-846-3947
- Address
- 155 N First Ave, Suite 200, Hillsboro, OR 97124
How to Search Property and Court Records
A County Assessor and a Department of Assessment and Taxation hold different pieces of the same property's history, and knowing which one to search saves time. The County Assessor's office assesses each parcel's value for tax purposes and publishes a searchable record — owner name, assessed value, lot size, building details, and the parcel's legal description — usually searchable by owner name, address, or parcel ID.
The Department of Assessment and Taxation's official records index is where deeds, mortgages, liens, satisfactions, and other recorded documents actually live. If you need to confirm who holds title to a property, trace a chain of ownership, or check for an outstanding lien, that's a Department of Assessment and Taxation search, not a County Assessor search. Court dockets — civil, probate, family — are typically a separate search within the same office.
Why this matters for insurance and title work: confirming the named insured matches the recorded owner, checking for liens before binding a policy, and verifying a legal description all start with these two offices. Search tools and coverage vary by county — some counties use one shared portal for both, others keep them fully separate.
Cities & Towns in Washington County
Building permit contacts for jurisdictions within Washington County: