9 Porter Road, Waltham, MA 02452 9 Porter Road, Waltham MA, 2452 Optimal Waltham Location Near Belmont Line. Large Colonial With Amazing Layout In A Great Neighborhood. Mint Condition, Formal Dr, Fireplaced Lr, Hw Floors Throughout. Direct Access Garage, Large Rear Deck Overlooking Manicured Lawn. Central Ac, Walkup Attic. Plumbed For Easy In-Law Conversion If Desired. Oh Sun 9/21 11:30-1Pm