Large horizontal buildings should be broken into vertical bays where practical. Bays may be defined through elements such as columns, pilasters, changes in facade plane, size and rhythm of window spacing and/or variation in surface material and pattern.

Design emphasis should be placed on primary building entrances, particularly where there is the need to provide contrast with a long linear building footprint. Details such as piers, columns, and framing should be utilized to reinforce verticality. Where possible, fenestration, canopies or awnings should be incorporated into building facades.

Side and rear elevations should receive architectural treatments comparable to front facades where public access or public parking is provided next to the buildings or where large areas of blank, solid walls are along external roadways.

Stone, masonry, brick, wood, and glass, as well as cast iron, steel, aluminum and other types of metal are preferred primary materials for facades. Variations in colors, textures, fenestration and pattern may be employed to further break up the building bulk.