Rare Berkeley property, lovingly held by the same family since 1952, this thoughtfully renovated duplex blends modern upgrades with timeless charm and offers the flexibility to convert into a spacious single-family home. Both units showcase beautiful wood trim, built-in bookshelves and cabinets, hardwood floors, Anderson windows, updated kitchens with newer stainless steel appliances and renovated bathrooms with a separate water closet. The electrical has been upgraded, and new furnaces and tankless water heaters installed for each unit. The upper level features 3 bedrooms, 1 bath, with a relaxing private balcony, while the lower level offers 2 bedrooms, 1 bath, and a versatile sunroom ideal for a home office, gym, or reading retreat. Additional highlights for both units include a dining room with fireplace, eat-in kitchen with custom cabinetry, and a convenient laundry room. Enjoy the newly landscaped backyard with raised planter boxes, perfect for gardening, entertaining, and outdoor living, plus ample parking with a long driveway and parking pad. Ideally located near shopping, dining, top-rated public and private K-12 schools, UC Berkeley, Berkeley Marina, parks, shoreline trails, and BART for easy commuting. BESO energy score of 3.