Nestled in the highly desirable North Shore hamlet of Mount Sinai, this exquisite newly constructed residence seamlessly blends modern luxury with classic Long Island living. Set on a generous 0.69-acre lot, the home offers an exceptional combination of thoughtful design, prime location, and elevated lifestyle. Boasting five spacious bedrooms and three full bathrooms, every detail reflects quality craftsmanship and meticulous attention throughout. Upon entry, you are greeted by a dramatic cathedral-ceiling foyer highlighted by a striking staircase, elegant moldings, and expansive tilt-and-turn windows that bathe the home in natural light. The open-concept main level is ideal for both everyday living and entertaining, featuring a formal living room, formal dining room, and a grand great room with a gas fireplace and soaring 10-foot ceilings. The gourmet kitchen is a chef’s dream, showcasing an oversized quartz waterfall island, custom cabinetry, gas cooking, premium stainless-steel appliances, and a walk-in pantry. Upstairs, the luxurious primary suite offers vaulted ceilings, a spacious walk-in closet, and a spa-inspired bathroom complete with a soaking tub, glass-enclosed shower, double vanity, and radiant heated floors. Four additional generously sized bedrooms share a beautifully appointed full bathroom, while a conveniently located second-floor laundry room enhances everyday ease. The full unfinished basement with an outside entrance provides endless potential for future customization. Additional highlights include an oversized two-car attached garage and ample driveway parking. Ideally located just 3.5 miles from Cedar Beach, 2.7 miles from Port Jefferson Village and ferry to Connecticut, and 1.5 miles from the Port Jefferson train station. Situated within the award-winning Mount Sinai School District, this exceptional property offers the perfect balance of convenience, comfort, and refined living.