It was built by developers Arthur and William Zeckendorf. 15 CPW is one of New York's most prestigious addresses. The location has been described as "the most expensive site in Manhattan", ($401 million in 2004) an entire, albeit small, city block on Central Park formerly occupied by the somewhat dilapidated Mayflower Hotel and a vacant lot. The Mayflower was a 1926 Neo-Renaissance building by Emery Roth.