Sloan & Robertson, 1929 – NYC HD
Warren & Wetmore and Robert T. Lyons, 1912-13 – NYC HD, NR-D

Developers Leo and Alexander M. Bing were the most prolific developers on Park Avenue, having constructed at least seven apartment buildings. One of the most notable was the Renaissance Revival style 903 Park Avenue, which, at 210 feet, was considered one of the tallest apartment buildings in the world upon completion. The luxury building was designed with one very large apartment per floor. Across East 79^th Street is the striking 893 Park Avenue. Its Art Deco style has some powerful Classical motifs, including monumental fluted pilasters.