Delineation (Identification) of Valuation Areas, Market Areas, and Neighborhoods:

• Valuation Area Delineation & Coding

  An article on how to delineate and code valuation areas (neighborhoods) with examples of methods used by some Washington State counties.

• Codes Utilized by Counties

  Summary of types of codes used by county assessors (market area, land use, inspection, neighborhood, etc).

Sales Verification and Sales Validation:

• Recommendations for Developing a Sales Verification Process

  An article on sales verification that includes why it is necessary, sources of sales data, what data should be collected, and other important considerations. Within the document there are also links to examples of sales verifications surveys, letters and other documents to aid in the sales verification process. (Posted October 2009)

• County Sales Validation Process (Best Practices Report)

  Best Practice Report, May 2007 Methodologies employed by county assessors in the sales validation process.