Remodeled Balboa Island Duplex blending modern upgrades with classic coastal charm. The bright single-level main cottage has been recently completely renovated and showcases two bedrooms, two baths, beautiful new white oak hardwood floors, central AC, brand new kitchen with quartz counters, and a sunny raised front patio. The upper rear unit is an ideal retreat or rental opportunity. With one bedroom and one bath, it features a generous living space and updated amenities throughout, including new windows, flooring, and lighting. There are 2 single-car garages, each with its own laundry facilities, plus a parking space behind the garage. Steps from both the scenic South Bayfront and the welcoming Island Village, 121 Marine is the perfect place to call home.