Nestled on over an acre of beautifully landscaped grounds in the highly sought-after Chappaqua School District, this exceptional residence offers a rare blend of privacy, craftsmanship, and versatility. Behind a gated entrance, mature specimen plantings, expansive lawns, and a tranquil natural setting create a true private retreat just minutes from downtown Chappaqua and Metro-North. Thoughtfully improved throughout the years, the home features cedar siding, Anderson windows and sliding doors, custom hardwood flooring with intricate inlay detail, reinforced structural beams, remote-controlled skylights, and numerous mechanical upgrades. Dramatic ceilings, walls of windows, and sun-drenched living spaces create an inviting atmosphere designed for both everyday living and entertaining. The eat-in kitchen is appointed with custom cabinetry, premium stainless steel appliances, a center island, and seamless access to the outdoor deck. Formal and informal living spaces flow effortlessly throughout the main level, highlighted by a dramatic living room with soaring ceilings, oversized windows, and a marble fireplace. The luxurious primary suite serves as a private retreat featuring custom California Closets and a stunning spa-inspired bath with a freestanding soaking tub, oversized glass-enclosed shower with body jets and bench seating, custom mahogany detailing, designer lighting, and exceptional finishes throughout. Renovated bathrooms throughout the home showcase custom tilework, premium fixtures, and thoughtful spa designs. A beautifully finished third-level bonus space offers vaulted ceilings, hardwood floors, built-in storage, a full bath, and endless possibilities for a home office, fitness studio, media room, recreation space, or private retreat. Adding to the home's versatility is an approximately 1,564 sq ft walk-out lower level featuring a legal accessory apartment with a full kitchen that includes custom Leicht cabinetry imported from Germany, a bonus room, spacious recreation/living area, laundry, storage, and private access. Additional highlights include California Closets throughout, intercom and surround sound systems, natural gas service, generator hookup, smart gate access, surveillance cameras, irrigation system, renovated garage, and a charming detached storage shed. Outdoor living is equally impressive with expansive decking, a remote-controlled SunSetter awning, and peaceful grounds designed for entertaining and relaxation. A truly special offering combining privacy, quality craftsmanship, modern conveniences, and exceptional flexibility in one of Westchester County's most desirable communities.