Urban, Sleek and Rewarding JeffJack Apartments, smartly located at the corner of Jefferson and Jackson in downtown Chicago, is absolutely brilliant. Inside and out. Along Jefferson Street, the building mimics the original manufacturing lofts, with large punched windows in masonry walls. Along Jackson Boulevard, a light glassy box turns the corner, covered with bright green mullions that wave across the facade, reminiscent of the original grasses of the Illinois prairie. The areas manufacturing buildings embody the strength, boldness and texture of the neighborhood. Dramatic exposed concrete elements bring that same aesthetic sensibility to JeffJack, with refined material adjacent to the raw quality of concrete. Our LEED design is apparent to the casual eye, with recycled, yet polished materials.