Each year, the Real Estate Assessment Office appraises all real property in the City to determine its value for tax purposes. The Zoning Division issues Zoning Permits and coordinates plan approvals related to use and development of residential, commercial and industrial properties.Learn about cost-saving options like the Grow Your Own program, which provides a supportive and affordable path to completing your special education licensure. The Unclaimed Property Program returns money, stocks, bonds, dividends, utility deposits, insurance proceeds, tangible property and more to Virginia residents. Fill out the intake form and have your login credentials sent directly to your inbox. 4725 W OX RD FAIRFAX, VA 22030-6125 Get Directions Phone: (703) 332-3200 Hours Mon-Fri.