Built in 1925 and designed by J. E. R. Carpenter, the leading luxury apartment architect of his generation, this beautiful building was originally the Mayfair House, a pleasant, 450-room hotel that was converted to a condominium in 1998. With its elegant lobby and modest 70 apartments on 15 floors, mostly 2 and 3 bedroom units, this building still exudes the old-world charm with which it was built. Complete with a full-time doorman and concierge, valet parking, optional maid service, a roof deck, and health club in the basement, you can also order room service from Daniel, one of the best restaurants in the world, located within the building.