Vertical Articulation. Each building facade facing a public right-of-way must have elements of vertical articulation comprised of columns, piers, recessed windows or entry designs, overhangs, ornamental projection of the molding, different exterior materials or wall colors, or recessed portions of the main surface of the wall itself. The vertical articulations shall be designed in accordance with the following:
(a)
Each vertical articulation shall be no greater than 30 feet apart.
(b)
Each vertical articulation shall be a minimum of one foot deep.
(c)
Each vertical projection noted above may extend into the required front yard a maximum of 18 inches in depth.
(d)
Building walls with expansive blank walls are prohibited on any building facade regardless of its orientation.