One New York’s first power substations, which once distributed power to the subway trains below SoHo, is now one of New York’s most coveted residential rentals, located at 214 Lafayette St. It took architect Peter Guzy of Asfour Guzy Architects and the property’s current owner, Marcus Nispel—the movie director of The Texas Chainsaw Massacre—12 years to convert the circa-1890 building into a five-story, four-bedroom townhouse. Guzy kept the original beams, barrel-vaulted ceilings, skylights, and exposed redbric…