Back in the ’60s and ’70s, pretty much every Soho loft doubled as an art studio. Artists fought successfully to legally convert the former manufacturing buildings into live/work lofts, and today there’s still a special zoning resolution that permits the use of former industrial spaces as homes only if the resident is an artist certified by the city. That zoning rule is often ignored, and with Soho lofts priced into the millions, you don’t see many left that include studios. But this one, which occupies the entire second floor of 123 Prince Street, is the exception–at least when it comes to the art studio. (The price, of course, is high, at $3.125 million.) The open apartment has been built out with a lofted bedroom, office, studio space and mini bar.