Elevator access to all living levels and two walk out Private Roof Terraces. Welcome to the Penthouse that create this Upper Triplex Home.The Top Floor offers a fabulous Family Room/ Home Office/Gym with TWO walk out Terraces, Gas Fireplace, powder room/wet bar for entertaining. The 4th floor level presents the Kitchen/Familyroom with Fireplace, a designated Dining room, Powder Room and a gorgeous Gas Fireplace Living room with custom built-ins throughout and wet bar. The third floor level holds the Master Suite with tons of closet space, Fireplace and oversized master bath. Two more Generous Guest Bedrooms with their own separate baths and Laundry complete this unit. With views of The Charles River, MIT Dome this home is a true Gem! Bonus the elevator goes directly to 3 parking Tandem Row(2) Garage parking and 1 additional outdoor parking space . New Boiler Separately metered Gas for Heat How water, Cooking and Fireplaces. This is a RARE FIND!