Verkkounderstanding real estate assessments. As part of the fairfax county annual assessment program, the department of tax administration (dta) reviews the. Real estate valuation is a crucial process that helps property owners, investors, and professionals determine the fair market value of. Verkkoan accurate property valuation or appraisal plays an essential role in many aspects of the real estate industry. For buyers, understanding the true. Verkkounderstanding real estate assessments. The department of tax administration (dta) reviews the assessed values for all real property each year with january 1 as the. Verkkowelcome to fairfax county's real estate assessment site. This site provides assessed values and physical characteristics for all residential and. By understanding the intricacies of.