The architectural design of townhouse buildings and any accessory buildings shall be reviewed by the Planning Board, and may be referred to an architectural consultant for recommendations. Design elements such as dormers, roof and gable end overhangs, covered entryways, windows with shutters, etc., are encouraged to provide visual interest, particularly in areas with higher visibility to adjacent development, pedestrian, or street traffic. Decorative details that are undersized and nonfunctional such as nonoperable shutters are discouraged.