Assessor

2019 Change of Value Notices Mailed on September 3rd, 2019

September 3, 2019

The Assessor mailed the Change of Value Notices for assessment year 2019 on September 3rd.

By State law, the Assessor is required to value property at 100% market value. The Assessor's Office analyzed real estate transactions that occurred from January 2018 through April 2019. During this time period, the real estate market continued its steady increase resulting in an overall increase in property values. Your property value reflects the real estate market as of the January 1, 2019 assessment date.

Below are highlights of the 2019 assessment year:

  • The Assessor's Office conducted physical inspections of properties on the east side of Orcas Island, Obstruction Island and the islands off the northeast coast of Orcas Island. This is a total of 3,275 parcels.
  • All new construction in the county was inspected and appraised. The total value of new construction added in San Juan County was approximately $95 Million.  

When a revaluation results in increased property values, tax rates typically go down. This is because the tax levy is now being calculated using a higher tax base. If tax rates go up or stay the same, it means the budgets of the taxing districts (hospitals, libraries, schools, county, parks, etc.) increased more than the market appreciated. The budgets used to calculate the 2020 taxes are due to the Assessor by November 30th. Tax rates will be available by mid-January 2020.

NOTE: If your appraised property value did NOT change from the prior year, you will not receive a Change of Value Notice from the Assessor's Office. To obtain the most recent appraised value, please click here and enter your Property ID (4 - 5) digits or your Tax Parcel Number (12 digits). You may also request your appraised value from the Assessor's Office via e-mail at assessor@sanjuanco.com or call 360-378-2172.

Role and Mission 


The Assessor's primary responsibility is to identify and assign a taxable value (assess) to all real and tangible business personal property within San Juan County and certify the annual tax roll with the Washington Department of Revenue (DOR) in accordance with State law. Additional responsibilities include the maintenance of all associated property records, the administration of current use and exemption programs, and the annual notification to property owners of a change in their appraised property value.

Property taxes allow our community to benefit from services like schools, libraries, parks, health services, fire protection, and law enforcement. The Assessor administers the assessment process so that taxes are paid equitably according to State law. The San Juan County Assessor's Office is committed to a process that is professional, fair and clearly understood.

Assessor's Office Activities and Responsibilities


  • Inspects all real property on a six-year cycle, with annual inspections for active new construction.
  • Assigns taxable value to all real property every year based on information obtained from inspections, historical information, and a comprehensive statistical analysis of market value.
  • Notifies property owners when there is a change in the appraised value of their property.
  • Administers tax relief and tax deferral programs for senior citizens, disabled persons, veterans and limited income families.
  • Administers Current Use Programs (Farm and Agriculture, Open Space and Timber Land) and Designated Forest Land Programs.
  • Monitors and assigns taxable value to business personal property every year based on information obtained from business owners and DOR audits. 
  • Maintains mapping systems to reflect the most current boundary line modifications and property divisions.
  • Maintains ownership records to reflect the most current sales and other transfers of interests.
  • Reviews the budget of all taxing districts and calculates levy rates according to statutory guidelines.     

The Assessor's Office is Not Responsible for the Following Activities


  • Mailing tax statements (contact the Treasurer's Office)
  • Collecting / providing status of tax payments (contact the Treasurer's Office)
  • Maintaining recorded documents (contact the Auditor's Office)
  • Determining / approving budgets for tax purposes