Even during the Great Recession of 2008, one new apartment house in New York City continued to set the bar for real-estate prices: 15 Central Park West. Designed by Robert A. M. Stern Architects, the lavish, limestone-clad structure from 61st to 62nd streets is arguably one of the most luxurious residential buildings to rise in the city in decades. Stern deliberately evokes the grand era of New York apartments designed in the 1920s and 1930s, especially...