Step into the extraordinary with this architectural masterpiece, a harmonious blend of artful design and a serene park-like environment in Hart. As you approach, the European-style front door beckons with its distinctive charm, framed by a tranquil, tree-lined walkway. The captivating spaces within boast oversized windows and a breathtaking 18 ft glass wall of accordion doors, seamlessly merging indoor and outdoor living. Natural light floods the interior, offering a constant connection to the textured garden and its exquisite plantings. Every inch of this residence is meticulously designed to enhance daily life. A central cathedral ceiling bathes the space in luminosity, setting a tone of luxurious warmth. Floor-to-ceiling windows bring nature even closer, creating an immersive experience. A raised fireplace casts a cozy glow from the living room to the dining area, adding an inviting ambiance. The kitchen, a versatile and highly equipped theater fit for a Chef, effortlessly transitions from hosting grand gatherings to intimate meals and casual moments of fun. The family room exudes an elegant yet relaxed atmosphere, offering a perfect balance between sophistication and comfort. Ascend the staircase, subtly illuminated by concealed LED lights, leading to the private quarters arranged around a sun-filled atrium. The main bedroom is a sanctuary framed by panoramic windows, featuring an exquisite en-suite bathroom with a soaking tub, oversized rain shower, a versatile Grohe Freehander shower system, and a double vanity. Three additional bedrooms provide dreamy views of the surrounding tree canopies, serving as ideal sleeping or working spaces. The lower-level recreation room is a flexible space that can transform into a state-of-the-art playroom or cater to more professional pursuits. The spacious 2-car garage offers ample storage possibilities. This unique and tranquil retreat considers every modern convenience, conveniently located within walking distance of Hartsdale's vibrant downtown, Metro-North train station, and the top-rated Edgemont Jr./Sr. High School. 163 Old Colony is a rare opportunity for the discerning client seeking daily inspiration from this bespoke, contemporary masterpiece.