Requirement. No building, or addition thereto, constructed after the original effective date of this chapter and no addition, alteration, reconstruction, extension, enlargement, conversion, or structural alteration to a previously existing building shall be occupied or used for any purpose until an occupancy permit has been issued by the Zoning Administrator. Every occupancy permit shall state that the use or occupancy complies with all the provisions of this chapter. An occupancy permit shall also be required for any new use, or change in use, of land or building.[1]