Unicorn! YES - 4 parking spaces, 2-car garage and 2 car parking at your front door are an unmatched luxury in the heart of Boston! Perfectly positioned between Newbury Street and Charles Street on the coveted Flat of Beacon Hill. AND, this magnificent 60-foot-wide converted carriage house offers 4,442 sq ft on 2 floors with two private entrances, living with the privacy, scale, and ease of a single-family home. Sweeping sun-filled bay windows overlook Beaver Place and the Boston Public Garden. Upper level presents all entertaining space on one floor, ALL front facing. Sunny kitchen and family room combo with french doors windows, centered formal dining room, bay windowed living room, all offering gorgeous gas fireplace of impressive scale. Entry level offers 3 Grand Bedroom suites, entry foyer office, private garden terrace with pergola, mudroom entrance. Steps from Charles River, Esplanade to walk pets. One block away is the bus stop serving private schools in Cambridge, Brookline,etc