Contacts King County Department of Assessments Contact for information about assessed values or the assessment process. If you have questions about your property, you can reach offices in the King County Courthouse and Administration Building by dialing this toll free number: 1-800-325-6165-Ext 67300     Public Information E-MAIL ADDRESS: Assessor.Info@KingCounty.Gov (206) 296-7300 TDD (206) 296-7888 FAX (206) 296-5107 Property Values, Appraisal Help, Comparable Sales, Legal Descriptions (206) 296-7300 TDD (206) 296-7888 Personal Property (business equipment and furniture affidavits) E-MAIL ADDRESS: Personal.Property@KingCounty.Gov (206) 296-5126 Personal Property (mobile homes) (206) 296-5126 Personal Property (floating homes) (206) 296-5126 Senior Citizen and Disability Exemptions (206) 296-3920 TDD (206) 296-7889 Senior Citizen and Disability Deferrals (206) 296-5151 TDD (206) 296-7889 Destroyed Property Exemptions (206) 296-5151 TDD (206) 296-7889 Home Improvement Exemptions (206) 205-0656 Nonprofit Organizations (206) 296-5151 Open Space Agriculture & Forest Land (206) 296-3969 Public Benefit Rating System &Timber Land (206) 205-5170 Historic Property Exemptions (206) 296-5145 King County Treasury Operations (Taxes) Contact for information about taxes and the tax collection process.   Real Property Tax Information (206) 296-0923 Customer Service (206) 296-3850 Personal Property Tax Information (206) 296-4290 Local Improvement District Records (206) 296-3913 Property Tax Refunds (206) 296-3413 Property Tax Foreclosures (206) 296-4184 Real Estate Excise Tax (206) 296-1570 Manager's Office (206) 296-7326 King County Property Tax Advisor Contact for advice and assistance regarding property taxes.   Property Valuation Questions and Appeals Counseling (206) 296-5202 King County Board of Equalization/appeals Contact for information regarding appealing an assessment.   Property Valuation Appeals (206) 296-3496 King County Records & Elections Division Contact for information about recorded property documents.   General Information (206) 296-1565 Real Estate Excise Tax (206) 296-1570 Plats, Condominiums, and Surveys (206) 296-1570 Community Service Centers Contact for information and services these centers provide.   BlackRiver (206) 296-7810 Cottage Lake (206) 296-2733 Northshore (206) 296-9840 Regional Justice Center in Kent (206) 205-7330 Sammamish (425) 296-0750 Vashon-Maury Island (206) 296-4510 Washington State Board of Tax Appeals Contact for information about filing an appeal with the State Board.   Property Valuation Appeals (Olympia) (360) 753-5449 Washington State Department of Revenue Contact for information about state guidelines for tax administration.   Tax Information, Toll Free Dialing 1-800-647-7706 Property Tax (Olympia) (360) 570-5900 International Association of Assessing Officers (IAAO) Contact for information about organization's activities and training offerings.   Chicago Office 1-800-616-4226 Appraisal Foundation Contact for information about organization's activities and training offerings.   Washington D.C. Office 1-202-347-7722 Updated: February 12, 2008 Department of Assessments King County | Department of Assessments | News Services | Comments | Search Links to external sites do not constitute endorsements by King County. By visiting this and other King County web pages, you expressly agree to be bound by terms and conditions of the site. The details.