Standards for buildings and site improvements. All commercial uses occupying existing structures in the Franklinville Village District shall retain any significant existing architectural facade characteristics, such as but not limited to porches, railings, window size and pattern, etc., of the building to the maximum extent practicable and architecturally relate to the characteristics of the surrounding area. New commercial structures shall be designed to complement the architectural characteristics of existing structures considered common to the area, particularly any structures designated as historically significant that are present in the district. Site improvements such as, but not limited to, sidewalks, fences, etc., shall be consistent with the characteristics of the surrounding area.