Incredible opportunity to own a magnificent, newly built custom Colonial offering just under 3,700 square feet of exceptional living space, perfectly positioned on one of the largest lots in the development in an incredible cul-de-sac location off another cul-de-sac within the Hauppauge School District. Set on just shy of three-quarters of an acre, this impressive 5-bedroom, 3-full-bath home combines tremendous scale, custom finishes, and an incredible indoor-outdoor lifestyle. Beautiful curb appeal begins with a stucco exterior, mature landscaping, an expanded blacktop driveway with paving-stone border, a paving-stone walkway, and neighborhood sidewalks. The backyard is a true resort-style oasis, surrounded by mature landscaping for exceptional privacy and featuring an oversized paving-stone patio with multiple areas for entertaining, relaxing, and enjoying the seasons. Step inside to an enormous entry foyer with soaring ceilings, 9-foot ceilings throughout the first floor, hardwood floors, recessed lighting, and extensive custom millwork. The oversized formal living room features beautiful custom moldings and a fireplace and flows into the expansive family room/great room filled with natural light from numerous windows and highlighted by additional custom millwork. At the heart of the home is the chef's kitchen featuring warm honey-toned maple cabinetry, granite countertops and matching granite backsplash, stainless steel appliances, a gas range, large center island with pendant lighting, and abundant cabinet and counter space. Double glass French doors provide a seamless transition from the kitchen to the spectacular backyard, while the kitchen also flows beautifully into an oversized formal dining room with chandelier. A mudroom with its own side entrance, a dedicated laundry area with front-loading washer and dryer, a generously sized first-floor bedroom ideal for flexible living or home-office space, and a full bathroom with glass-enclosed shower complete the main level. Upstairs, the enormous Primary suite is a showstopper with double-door entry, soaring vaulted ceilings, recessed lighting, an expansive walk-in closet with custom shelving and hanging space, and a spa-inspired Primary bathroom featuring a soaking tub, double vanity, and glass-enclosed shower. The additional bedrooms are all generously sized, and an additional finished bonus room provides even more flexible space for a home office, study, nursery, or hobby room. The home also features gas heat and hot water. Completing this incredible property is an enormous basement mirroring the footprint of the first floor and offering outstanding storage and endless possibilities for future use. Tremendous size, a spectacular property, resort-style outdoor living, and an exceptional cul-de-sac setting make this custom Colonial an opportunity not to be missed