King County Historical Property Records
This site contains information about older King County property and land use records. Property records are maintained in different county locations. You may need to contact more than one record source to obtain complete information about your property or about a property transaction.
The records include legislative files of the County Commissioners (1853- April 1969) and the King County Council (since May 1969), and administrative files from county executive agencies. For more information about the historical property records held by the King County Archives, please check our Frequently Asked Questions pages.
Additional sources of historical property records include:
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