US real estate: Which floor has the door to US homes?

IOs – an alternative play on mortgagesWHAT DO SANDY Weill, Lloyd Blankfein and Dan Loeb have in common with a Nascar driver, Sting and a cartoonist? There is a joke in there somewhere, for sure, but the less humorous answer is: they all bought apartments in 15 Central Park West, Manhattan. Known locally as 15 CPW, it is a "place to live graciously in New York". With 210 apartments with views of Central Park, a 14,000 square-foot gym with lap pool, 20-seat cinema, a library, 30 climate-controlled wine rooms, suites for domestic employees, a club floor with a games room, terrace and meeting room, 15 CPW is the most prestigious apartment building in Manhattan, and in the spring the building was finally ready to be lived in. With all sales completed in March last year, 15 of the condos have reportedly already been sold on to second buyers. Some of...