Marcello Porcelli’s LargaVista Companies bought a 50,000-square-foot warehouse in the Queens Plaza North section of Long Island City for $27 million. The Midtown-based development firm picked up the four-story warehouse at 30-12 41st Avenue for $27.1 million, property records filed with the city Thursday show. The purchase price for the 46,808-square-foot building works out to nearly $578 per square foot. A representative for LargaVista was not immediately available for comment.