New York City is notoriously Expensive, and for many people, living here is out of reach. But some parts of the city are truly off-limits for most of us. Take Billionaires’ Row, for example, a nickname given to the area of 57th Street directly south of Central Park. We’ve combed through the data to extract a list of the 50 most Expensive Streets and neighborhoods in New York City, based on home sales closed so far in 2019.