Where any individual commercial building façade is visible from any public right-of-way an exceeds forty (40) feet in length, there shall be both a clear dimensional differentiation of roofline, and an offset in façade of at least ten (10) feet to create effective facades that are no longer than forty (40) feet. Street trees with tree wells, or other streetscape and pedestrian amenities shall be used to balance façade offsets. The Borough may allow a commercial building with a façade longer than forty (40) feet if the proposed design emulates characteristic historical building forms such as barns, stables, churches, meeting houses, or other public buildings. Building arrangements which rely on repeated use of the same long façade element shall not be approved. Where an individual commercial building façade exceeds forty (40) feet in length, the building design or use layout shall limit the length of the streetscape frontage occupied by any one use to the greatest extent practicable by providing for inviting, interior accessory or independent business uses with the streetscape-fronting portion of the building (e.g., the café and/or floral operations within a grocery store, or a small, independent service or retail use). In all cases, blank walls, facades, and windows shall be kept to a minimum.