A. Within commercial buildings which are established with a principal use, other than eating and drinking establishments, eating facilities such as cafeterias, espresso bars, cafes, and delis that do not serve alcohol, do not have drive-through facilities, and are no larger than 1,500 square feet shall be permitted.

B. Within the EC, ECOR, and CE zones, cafeterias, espresso bars, cafes, delis, and other eating establishments that are attached to or are a part of a building for another use allowed in the zone, and do not serve alcohol and do not have drive-through facilities, shall be allowed. The part of the structure used for this purpose shall not exceed 15 percent of the square footage of the structure.