Welcome to 15 Beaver Pond Lane -- a beautifully updated colonial nestled on over 4 private, picturesque acres in the coveted Katonah-Lewisboro School District. Set back from the road on a quiet lane with a cul-de-sac, this 3,500+ SF, 4-bedroom home offers the perfect blend of privacy, sophistication, and convenience. The main level features a gracious flow ideal for both everyday living and entertaining: a formal dining room, formal living room, dedicated home office, and a dramatic double-height family room with wood-burning fireplace that opens into the spacious eat-in kitchen and mudroom. The kitchen features granite countertops and overlooks the large back deck, making indoor-outdoor living seamless. Upstairs, the primary suite is a true retreat, complete with a stunning, fully renovated spa bath featuring marble tile, a double vanity, luxurious rain shower, and abundant natural light. Three additional bedrooms and a large bonus room (can act as a 5th bedroom) provide plenty of space. The lower level includes new flooring, closets, and an additional 1,500+SF perfect for a future rec room or gym. Step outside to enjoy a beautifully designed outdoor oasis -- a large deck off the kitchen overlooks the in-ground pool with new liner, pump, and filter, plus a generous flat backyard ideal for entertaining or relaxing in total privacy. Upgrades Include: New roof (2024), New hardwood floors on second level (2015), Fresh interior and exterior paint (2025), new stone siding with Azek trim (2024), new boiler (2016), new AC (2015), mahogany closet systems throughout and more. Conveniently located less than 5 minutes from Meadow Pond Elementary, Onatru Farm Park and 12 minutes to the New Canaan train station for an easy commute to Grand Central. Don't miss this spectacular offering in the heart of South Salem!