Owners of buildings located in the Central Business District and, in particular, those located within the Market Street National Register District have a responsibility to preserve and protect the Village of Potsdam's history as reflected in its unique architectural heritage. To this end, buildings and structures that are listed on the National or the New York State Register of Historic Places shall be rehabilitated, renovated, repaired, converted or adaptively reused in compliance with the most recent version of the U.S. Secretary of the Interior's Standards for the Rehabilitation of Historic Structures. Prior to rehabilitation, renovation, repair, conversion or adaptive reuse, property owners shall secure written approval for the scope of work issued by the Code Enforcement Officer prior to commencing work or securing a building permit.