770 Park Avenue, located on the southwest corner of 73rd Street, is a distinguished 19-story, 41-unit co-op designed by Rosario Candela and built in 1930. Featuring spacious duplexes with 10 to 15 rooms, many with libraries, elevators, terraces, and fireplaces, it offers grand living just blocks from The Frick Collection, Whitney Museum, and Lenox Hill Hospital. Amenities include a doorman, gym, and pet-friendly policy.