Street wall facades shall be architecturally enhanced through the use of arcades, colonnades, recessed entrances, window details, bays, variations in building materials, and other details such as cornices and contrasting colors.  Total blank walls (without windows and entrances) are prohibited.  In addition to architectural massing requirements, building facades shall be articulated through the use of separated wall surfaces, contrasting colors and materials, variations in building setbacks, and attractive window fenestrations.  (Ord. 6031 § 6; August 22, 2006.)