To change the mailing address for a City of Fairfax property, please complete the form below to notify the Real Estate Assessment Office. Apply for your address change online in PLUS under the Site tab.If you are a first-time user, you must first register for an account. Click on "Create an Application" Select "Addressing" tab. Select "Address Change" Fill in required information under Location and People tab. Request Mailing Address Change. You'll need your Virginia Tax Account Number, your FEIN, and a copy of your most recent return (if you've filed with us) to create an account. Based on the type of student transfer request, the application automatically will identify the school(s) closest to your home address that may be requested. 95 Wellington Street West, Suite 800. View your account, make a one-time payment, set up auto bill pay, and more.