The Chatham, built by renowned architect Robert A.M. Stern, is one of the Upper East Side's most distinguished white glove buildings, personifying elegance and charm of a bygone era with contemporary living in mind. Residence 20C is an exceptional high-floor 2 bed, 2 bath home boasting soaring 10-foot ceilings and sweeping, unobstructed eastern city views. A stately entry foyer introduces the res...