Any building or structure that has been identified in accordance with Subsection A above as having national, state, or local architectural or historic significance shall be preserved unless the applicant can demonstrate that it is in irreparable condition. Where demolition is determined to be acceptable, the redevelopment of the property shall be undertaken in a manner which preserves the character, front yard setback, and design of the building removed, notwithstanding the front yard setback that may apply within the applicable zoning district. New or reconstructed buildings shall maintain the setback of the original building and shall maintain the architectural style, scale, bulk, and design of the original building.