Property Tax Valuations Go Up

  • Written by Valley View Staff
2019 Property Valuation Notices Are in the Mail.  Values Rose 10.2% in Duvall in 2018.
The King County Assessor’s Office has begun the annual process of mailing valuation notices to over 700,000 property owners. Notices should be arriving soon to homeowners in the Duvall area reflecting property values as of January 1, 2019. Values rose an average of 10.2% in Duvall in 2018.
Valuation increases moderated across the county in 2018, with overall values up in the low single digits in most areas, while some areas, including Duvall, saw larger increases. Higher valuations, however, do not necessarily translate into higher property taxes, said Assessor John Wilson. 
“Most people don’t realize that the fluctuating value of your property has less to do with changes in your tax bill, than do changes in state law and measures approved by voters,” said Wilson. “Decisions made by lawmakers and voters determine the total amount of tax to be collected in your area; the value of your property determines your share of that total amount.”
Property owners who believe their assessment may be incorrect, can appeal to the Board of Equalization (BOE). This must be done within 60 days of the date on their valuation notice. Details are available at, and at the BOE at

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