Set on a private .75-acre lot framed by classic stone walls, wooded privacy, and elevated views of Lake Lillinonah, this well-maintained center hall Colonial offers a rare blend of lake lifestyle, efficiency, and value in desirable Newtown. Includes beach and lake access rights through the Housatonic Knolls Recreation Association, with lake access close by for boating, fishing, and recreation. Featuring oak flooring on the main level, a fireplace-centered living space, and a kitchen with a Thermador range, Kitchen-Aid dishwasher, and dual walk-in pantries. All three bedrooms include walk-in closets, while the primary suite offers a Jacuzzi tub and separate shower. French doors open to a new TREX deck with lake views and propane connection for outdoor grilling and entertaining.30 fully owned solar panels offset energy costs and are complemented by central air, Energy Gold Plus windows, and Therma-Tru doors with transferable warranties. A whole-house generator with extended propane backup provides resilience and peace of mind, while a newer Peerless furnace (2024) offers confidence in long-term performance. Additional features include an upgraded ADT security system, commercial-grade RAB perimeter motion-sensing lighting, fenced yard, unfinished basement, new driveway (2024), Belgian block accents, and mature landscaping featuring 17 magnolia trees, Japanese maples, Korean dogwood, and forsythias. Convenient location near Newtown schools, commuter routes, and train stations.