On the Market

Mixed-Use Building in Nation’s Most Expensive Neighborhood Hits the Market as a Potential Mansion Conversion

18 East 64th Street

A note to all billionaires:  Massey Knakal Realty Services is exclusively marketing an 11,000-square-foot Upper East Side building at 18 East 64th Street for $40 million.

The property has been off the market for six decades, and now presents an opportunity for a potential buyer to cut down existing office and residential space in the building and create a single-family palace on one of the city’s most exclusive blocks – and the nation’s most expensive neighborhood. Read More