Each application for a variance or waiver shall be filed at the office of the Bureau of Fire Prevention and Public Safety and shall be accompanied by such maps, drawings, letters, statements, and other supporting data as may be required to justify the request in question. Except when such an application is in conjunction with an application for a permit required by Section 57.105.7.1.1, it shall be accompanied by payment of a fee established by the most current cost recovery schedule published as provided by Section 57.106.7. An application for two or more variances may be filed upon a single application and only one fee shall be paid, provided that all such variances are located at the same address and are for the same person.