The Penthouse Duplex at 427 East 90th Street

Create Over 4,700 SF of Mint-Condition Living + 1,400 SF of Private Outdoor Space

A truly rare opportunity to combine two full-floor penthouses into a grand-scale, mint-condition duplex with 4,700 interior square feet and 1,400 square feet of private outdoor space across four terraces. With private elevator access to both floors, open ...