Nonresidential buildings may be set back more than 85 feet but in no case more than 150 feet, provided that any such deviation shall comply with the following criteria: the development or use shall incorporate enhanced pedestrian spaces and amenities within the setback area. Enhanced pedestrian spaces and amenities consist of a combination of features such as plazas, fountains, courtyards, arcaded pedestrian walkways, outdoor seating, widened sidewalks or pedestrian pathways, benches, shelters, street furniture, playgrounds, gazebos, public art or kiosks.