STEPS to BOTH the Newport Bay and the sandy beach, and just a few short blocks to the Balboa Fun Zone, dining, shopping and the Balboa Island Ferry, this truly unique residence is nestled within the "Super Seven" of the Balboa Peninsula-streets predominantly occupied by long-term owners. This versatile floor plan offers the flexibility to function as EITHER a duplex OR a single-family residence. Currently, it features a two-bedroom, two and a half-bath main unit AND a separate two-bedroom, two-bath upper unit, each with its own amenities! This one-of-a-kind property seamlessly blends personal luxury with investment potential, boasting open concept living spaces and an upstairs guest/rental unit that can be integrated with the main home if desired. Thoroughly updated, the recent remodel of the “main house” introduced hardwood flooring in the large great room that opens to both the front sunny patio and the gourmet kitchen with quartz counters, and premium LG & Samsung appliances. There is an oversized main level bedroom with adjacent full bath, along with a powder bath for guests. The second level master or primary suite stands out with its vaulted ceiling, cedar walk-in closet, and luxury fittings. The second unit has an optional exterior staircase entry to its family room with vaulted ceilings and a sunny balcony, open kitchen, private laundry, and 2 additional en suite bedrooms with private bathrooms. For added comfort, central heating and AC are available downstairs, while the upstairs rooms benefit from four mini-split units. An owned solar panel system with a backup battery ensures eco-friendly power. Additional features include a tankless water heater, full pex repipe, water filtration, and smart-home crestron automation, all complemented by an oversized two-car garage. Such versatile homes on the Balboa Peninsula are rare, making this a prime opportunity in a coveted location to enjoy beach-life all year around or easily rent out a portion of the home short or long term.