This incredible opportunity offers a magnificent oversized Colonial positioned mid-block on a quiet dead-end street with no cut-through traffic, sitting on one of the largest lots and one of the largest homes in the entire development. Located in the highly sought-after Smithtown School District, the exterior features an expanded blacktop driveway with a Belgian block border, beautiful vinyl siding with a partial front brick facade, and white vinyl front fencing and 10 year young roof. The backyard is a true resort setting with multiple entertaining areas, including a fully fenced inground swimming pool with a 5 year young electric heater, a stunning brick patio surrounding the pool, a large Trex deck, and several additional spaces designed for hosting, relaxing, dining, and enjoying outdoor living to the fullest. Inside, the home offers an open floor plan with hardwood floors throughout the main principal rooms, beginning with a formal living room featuring recessed lighting and crown molding that flows seamlessly into the formal dining room, highlighted by hardwood floors, crown molding, a raised step-up design, a breathtaking stained-glass window, and a chandelier. The oversized chef's kitchen includes wood cabinetry, granite countertops, a mirrored backsplash, recessed lighting, a white stove, stainless steel refrigerator with water and ice, stainless steel dishwasher, a large breakfast bar with pendant lighting, and an eating area with a slider out to the rear yard; it also connects to a dedicated laundry nook with front-loading washer and dryer and additional upper cabinetry. Off the great room/den is an Anderson French door leading to another rear patio area, creating smooth indoor-outdoor flow. The first floor also includes a powder room with wainscoting and a white vanity, as well as a large den/great room with tile flooring, a wall of windows, recessed lighting, and a white brick fireplace, plus an additional full handicap-accessible bathroom with an oversized walk-in shower. The second floor features five bedrooms, all with hardwood floors under the carpeting, and an expanded hallway bath with floor-to-ceiling tile, a tile ceiling, a large soaking tub, and a glass stand-up shower, along with an enormous primary suite featuring its own full bathroom with a glass stand-up shower. The full basement offers high ceilings, recessed lighting, and excellent storage, complemented by an updated gas boiler and hot water heater. This home delivers rare scale, an unmatched backyard experience, and exceptional functionality inside and out.