Opulence and grandeur define this 9,355 +/- sf. custom-built estate in the prestigious North Harbor section of Miller Place. Perfectly sited on .92 acres of exquisitely landscaped grounds, this residence offers an unmatched lifestyle, where architectural detail, thoughtful design, and expansive spaces for entertaining come together in perfect harmony. Every element has been curated with intention, leaving an unforgettable impression at 2 N Harbor Down. A sweeping front porch framed by lush landscaping sets the stage, while a custom cast iron entry door opens to a dramatic foyer with soaring 20-foot ceilings, a crystal chandelier, and a grand staircase. Natural light pours into the great room, where coffered ceilings, raised panel molding, built in speakers throughout and a gas fireplace create an inviting yet refined atmosphere. The chef’s kitchen is a masterpiece, featuring a large dining space, additional seating area with tv, solid white custom cabinetry, granite countertops, porcelain tile floors, and top-of-the-line appliances: Sub-Zero refrigeration, Wolf double convection ovens, a 36” induction cooktop, dual sinks, and a built-in Miele coffee system with filtration. A butler’s pantry with illuminated china cabinetry, wine refrigerator, and granite surfaces seamlessly connects to the formal dining room, setting the stage for exceptional entertaining. The main floor includes a private office with custom built-ins, two powder rooms, laundry room and three car garage with both interior and basement access. The first-floor master suite is a true retreat, offering a private sitting area, french doors leading to the expansive deck, a bespoke walk-in closet with quartz surfaces, and jewelry trays. Enjoy the spa-inspired bathroom with heated marble floors, jetted soaking tub, double vanities, and a custom walk-in shower with temperature control. The impressive second floor’s cat walk overlooks the grand living room & foyer, setting the tone for luxury. A built-in bookshelf with a sitting area is the perfect place to escape and read your favorite book. Next up is the master suite with a private sitting area, beverage station, a custom walk-in closet with quartz finishes and a spa bathroom echoing the luxury of the first. Two additional guest bedrooms both with walk-in closets, custom cabinetry, and a shared spa like Jack & Jill bathroom. The spacious bonus room over the three car garage has endless possibilities connected to a service staircase to the kitchen below. The finished lower level was designed for entertainment and wellness, featuring a cozy living area with a Lexington Forge fireplace, wine refrigerators, a full entertainment kitchen equipped with an ice maker, dishwasher and sitting area. Enjoy a game of pool in the billiards room or get in a workout or massage at the end of your day. The lower level is also outfitted with a large cedar closet, multiple storage rooms, powder room two staircases and utility room. The backyard is an entertainer’s paradise starting with the upper deck overlooking the grounds. An in-ground heated saltwater pool with sun deck and waterfall is surrounded by an expansive Technoblock patio, slate coping with multiple seating areas, and accent lighting. A fully equipped outdoor kitchen includes a Coyote grill and sink, turbo grill, refrigeration, and quartz counters, ideal for al fresco dining. The firepit area is the perfect place to gather around and relax. Custom lighting, lush landscaping, fountain and outdoor speakers elevate the experience. Just minutes from Cedar Beach, this custom-built residence represents the pinnacle of North Shore living. Designed by its original owners with a focus on style, comfort, and sophistication, 2 N Harbor Down is a rare opportunity to experience a home that truly has it all.