Try this.  If you're a selling agent or a mortgage officer, you can help your Lender by providing the address of a listing; sale or refi, by looking up your property address on post office records at http://zip4.usps.com/zip4/welcome.jsp.  When you use the property address as it appears from the post office, it helps getting an appraisal waiver in the loan officer's DU findings.  (Most appraisal waiver systems are set up to recognize the address as the post office has it on record).  This will make the process of closing faster and save a buyer/borrower money.  There are other factors that apply for an appraisal waiver; down payments, low loan-to-value ratios, credit scores etc.  But making sure the address is typed in like a postal address still makes a difference.