OBSERVATORY HILL STUNNER. Less than a mile to Harvard Sq, this classic New England home blends the best of traditional attention to detail with a beautiful modern floor plan. Built in 2017 by a well-respected, Cambridge-based developer, this spacious sunlit home offers state-of-the-art energy efficiency with solar rooftop panels, electric car charger, mini-split HVAC system, & tankless hot water. The L-shaped floor plan includes living rm with gas fp & a bright white kitchen with top-of-the-line Miele appliances & a reverse osmosis water system. Private library/den accessed through French doors completes this level. Upstairs are 3 bedrooms with soaring ceilings, including primary with en-suite marble bath & twin balconies for morning coffee or quiet reading. Fourth bedroom on the lower level with private entrance & full bath. Also on the LL is a media room, workout area, & additional space. Beautifully landscaped with private enclosed back yard and 1 car garage plus off-street parking.