This extraordinary contemporary Colonial is a seamless blend of luxury, innovation, and resort-style living, offering an unparalleled lifestyle on Long Island's prestigious Gold Coast. Spanning approximately 5,800 square feet of exquisitely designed living space, plus an additional 2,000-square-foot walkout lower level with sliding glass doors to the rear grounds, this one-of-a-kind residence offers exceptional versatility for entertaining, recreation, and everyday living. Featuring five bedrooms and six bathrooms, the residence includes a gourmet chef's kitchen, elegant formal dining and living rooms-each with its own fireplace-and two luxurious primary suites. One primary retreat boasts soaring cathedral ceilings, a fireplace, and a private balcony overlooking the beautifully landscaped property. Designed for both wellness and entertainment, the home features a private gym, movie theater, indoor and outdoor pools, a custom indoor sauna, and an outdoor hot tub retreat. A fully integrated Control4 smart home system effortlessly manages lighting, climate, security, televisions, motorized shades, and skylights throughout the residence. Built-in audio extends to virtually every room, including bedrooms and bathrooms, as well as an outdoor sound system providing seamless coverage across the pool, patio, hot tub, and entertaining areas. Comfort is ensured year-round with nine-zone heating and cooling. Recent upgrades elevate the home's already impressive amenities, including 48 new windows, motorized skylights, a state-of-the-art theater featuring a 4K projector, enhanced surround sound, and a 115-inch screen. The spa experience continues with a newly installed custom sauna featuring floor-to-ceiling travertine stone and a striking glass enclosure. Set on two meticulously landscaped acres, the outdoor living spaces rival those of a private resort. Highlights include a heated saltwater pool, gas fire pit, hot tub, and a fully equipped outdoor kitchen complete with a barbecue, sink, and refrigerator. The property is also remarkably efficient and future-ready, featuring 48 owned solar panels that power the entire estate, dual EV charging stations on independent circuits, and climate-controlled garage and attic spaces. Located within the coveted Fiddler Green community, residents enjoy access to a private beach, deeded harbor with mooring rights, and one of the most desirable waterfront settings on the North Shore. Combining exceptional craftsmanship, cutting-edge technology, and world-class amenities, this remarkable residence offers the rare opportunity to own a truly self-contained luxury retreat within the acclaimed Cold Spring Harbor Central School District. A spectacular offering that must be experienced to be fully appreciated.