50 West 66th Street is a skyscraper currently under construction for the Upper West Side of Manhattan in New York City. It is being developed by Extell Development Company and designed by Snøhetta. The building will contain setbacks, private loggias, chamfered corners, and a 16th-floor communal terrace. The facade will be made of limestone and burnished bronze beneath the 16th floor and glass with burnished-bronze chamfers above that floor.