King County property records
Where to look up owners, values, tax bills, parcel maps, deeds and value appeals in King County, Washington. Each link goes to the county or state office that keeps the record.
Where each record lives
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Owner, land, building and value
Look up an owner’s name and mailing address, land and building details and the assessed value in the King County property search.
These records are kept by the King County Assessor's Office.
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Tax bills and payments
Find the current bill, the balance due and past payments with the King County property tax lookup.
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Parcel maps
See parcel boundaries, parcel numbers and aerial imagery on the King County GIS parcel map.
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Deeds, liens and recorded documents
Search deeds, mortgages, liens and other recorded documents in the King County deed and lien search.
Deeds and liens are recorded by the King County Recorder's Office.
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Value complaints and appeals
Deadlines, forms and how to file an appeal are on the King County value appeals page.
Contact details and how-tos are on the King County value appeals page.
Links go to official county and state sites and were last checked in November 2026. Offices move their pages, so if one has changed, the county’s own website (kingcounty.gov) is the place to start.