Rare multi-generational living w over 5,100 sq ft across four finished levels gives every generation its own space: a 1st-floor bedroom and full bath for grandparents or guests who'd rather skip the stairs, four beds and two baths on the 2nd, and a private 3rd-floor primary suite with full bath (huge with tub and shower stall), office, and skyline sunrises.The walk-out lower level is a complete in-law/au pair suite w/ private entrance, full bath, kitchenette, and laundry. Ideal for in-laws, an adult child, live-in help, rental income, or hosting company for days. An entertainer's paradise with 2 ovens, 2 dishwashers, and 2 washer/dryer sets, the home can run as two households at once. High on the hill with a quiet dead-end street, with picture windows framing Fresh Pond, Cambridge, and the Boston skyline. Top Belmont schools nearby; easy access to the city.Built for families who actually need the room — and rarely come up at this size. Seriously, don't miss this one.