No alteration of any structure of significant exterior architectural feature thereof in any designated Preservation District shall be undertaken prior to obtaining a Certificate of Appropriateness from the Building Department, and no Certificate of Occupancy shall be issued by the Building Department for the construction, reconstruction, alteration, or demolition of any area, place, site, building, structure, object, or work of art within a designated Preservation District unless the application for such permit is approved by the Design Review Board through the issuance of a Certificate of Appropriateness in the manner prescribed herein. (Ord. 17-2004. Passed 8-5- 04.)