A rare opportunity to own a multi-generational/extended family home! This 2-unit, 3-level has been in the family for four generations. Built in 1946 as a guest house with a first floor apartment, it was also a B&B, hosting guests who came back yearly for the scents & sounds of the ocean, water views, sunrises & spectacular sunsets! 16 Portsmouth Ave is two houses away from a quiet sandy beach on the Hampton River! Walk the block with your beach wagon to the Woodstock Street entrance of Seabrook Beach to spend the day near the dunes, swim, fish, or walk for miles along the soft sand! After the beach, go over the bridge to get fresh seafood right off the boats, or continue walking 10 more minutes to the Hampton Beach Boardwalk to enjoy restaurants and nightlife! Unit #1 is great for the in-laws, or as an ADU, with a stairless entry from the enclosed porch into the living room, the kitchen opens to the dining room, and is complete with 2 bedrooms, a ¾ bath and storage. Unit #2 occupies the 2nd and 3rd floors with Maple hardwood floors throughout. The 2nd floor entrance welcomes you to the dining room, kitchen, 2 bedrooms, a ¾ bath, an extra-large living room adjacent to a beautiful wood-ceiling enclosed porch where you can unwind and watch the sunsets. On the 3rd floor, the third ¾ bath, everyone gets their own room with 6 large bedrooms. Vinyl siding, metal roof, an enclosed outdoor shower, parking for 6-7 cars, this property is a welcome retreat to enjoy the summer!