Light moves across this glorious Moss Hill backyard garden all day, and on summer evenings the fireflies arrive — a quiet payoff for one of Jamaica Plain’s rarer finds: true one-floor living on a cul-de-sac across the Jamaicaway from the Arnold Arboretum. Inside this 1955 raised ranch, the sightline runs from the fireplaced living room through the dining area to an enclosed sun room that lives as a second, less formal eating space wrapped in windows facing the yard. Three bedrooms and a full bath sit down a hall off the living room; the primary looks out onto the back canopy. The kitchen and main bath are dated but functional — honest condition, priced accordingly. A walk-out lower level with half bath, garage access, and finishing potential adds real upside, and the 0.18-acre lot leaves room for a future buyer’s vision (with appropriate due diligence). Under-house garage, driveway, and abundant on-street pkg. Central AC. Pull-down attic storage. The garden is the closer.