Sun-Drenched 3-Bedroom / 1.5-Bath Penthouse Duplex on Quiet Cul-de-Sac. Welcome to this bright and airy penthouse duplex ideally located on a peaceful cul-de-sac at the vibrant border of the South End and Back Bay, in between Columbus Avenue and St. Botolph Street. The upper level features an open-concept layout with a spacious living and dining area, a stylish kitchen outfitted with stone countertops, SubZero refrigerator, Thermador stove, maple cabinetry, and gleaming hardwood floors. A versatile third bedroom or home office and a convenient half bath complete this floor. Downstairs, you''ll find two oversized bedrooms with ornamental fireplaces, generous closets, and a full bath with in-unit washer and dryer. Enjoy spectacular skyline views and direct access to the beautifully renovated Titus Sparrow Park and the Southwest Corridor Path-perfect for outdoor enthusiasts. Heat and hot water, and one off-street parking space included. A+ location near shopping, dining, transit, and more.