Set on two peaceful acres in the desirable New Castle area, this thoughtfully updated home offers a rare balance of privacy, space, and convenience. Positioned on a corner lot and set far back from the road, the property provides a quiet and secluded feel while still being conveniently located approximately 15 minutes from downtown Chappaqua, the Chappaqua Train Station, shopping, dining, and everyday essentials. The Croton-Harmon Train Station is even closer, while convenient access to Route 9A and the Taconic State Parkway makes commuting throughout Westchester and beyond easily accessible. Originally redesigned and extensively reconstructed under architectural plans, the home features spacious light-filled living areas, a dramatic vaulted great room ceiling, and an architect-designed wall of glass that brings natural light and the surrounding landscape into the heart of the home. Multiple Marvin door systems were designed to create seamless indoor-outdoor flow and future deck integration. The home was designed with a similar footprint across both levels, resulting in an exceptionally large lower level with substantial flexibility for workshop space, storage, recreation, future finishing, or other expanded uses. The kitchen and main living spaces were rebuilt from the foundation up during the 2008 reconstruction and create a true chef's kitchen experience, featuring radiant heated flooring beneath large-format tile, custom built cabinetry, an oversized 5' x 7' island, a large built-in KitchenAid refrigerator, KitchenAid dishwasher, and a Thermador professional oven. The kitchen was intentionally designed with nearly 5 feet of clearance around both ends of the island and cabinetry, creating exceptional flow, workspace, and openness rarely found in homes of this style. A large cellar space with increased ceiling height was also added during the reconstruction, offering excellent flexibility as a workshop, workspace, storage area, gym, hobby space, or potential future finished area. The lower level also includes a second laundry setup with an additional washer and dryer. The spacious primary suite addition includes a large ensuite bath with jacuzzi tub, oversized shower, and private water closet. A second primary-style bedroom offers its own ensuite bathroom with shower and direct access to the backyard, creating excellent flexibility for guests, extended family, or private workspace use. A second primary bathroom was also fully renovated in 2025. The rare 4-car tandem garage configuration, oversized driveway system with parking for approximately 20 vehicles, and expansive high-ceiling cellar space create exceptional flexibility for car enthusiasts, collectors, hobbyists, workshop use, home business needs, or anyone seeking substantial additional storage and utility space rarely found in the area. Additional highlights include a central vacuum system with multiple in-wall outlets and kitchen kick-plate crumb sweeper, fireplace-ready buildout with propane option, generator-ready electrical infrastructure, alarm system, updated water systems, and numerous structural and mechanical improvements completed over the years. A unique opportunity to enjoy peaceful acreage, architectural character, flexible living space, and convenience in one of northern Westchester's most desirable settings.