Designed by Robert A.M. Stern Architects, the 18-story 20 East End Avenue is the newest boutique condominium to grace Manhattan’s Upper East Side. With 43 residences that range in size from 1,900 to over 6,000 square feet—and in price from $4.5 to $35 million—the building offers two penthouses at the very top and three duplex townhouses with their own cellars.
