How often is property assessment conducted?
King County Assessor conducts property assessments on an annual basis. Every year, the Assessor’s Office reviews and updates property values to reflect the current market conditions. This annual assessment is based on sales data, market trends, and other relevant information to ensure that property values are accurate and equitable.
However, it is important to note that not all properties are physically inspected each year. Instead, the Assessor's Office uses statistical methods and data analysis to determine the estimated value of most properties. Property owners may also appeal their assessed value if they believe it does not accurately reflect the market value of their property. For additional details on the assessment process or to view specific timelines, one might consider checking the King County Assessor's website, where updated information and resources can be found.

Answered Jun 26, 2025
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