800 Rushmore AvenueMamaroneck, NY 10543Price: $4,350,000

A striking 2023 architectural modern masterpiece, this exceptional contemporary home is set within the coveted coastal enclave of Orienta Point. Privately positioned on a gated 0.70-acre property, it offers a rare blend of serenity and sophistication just moments from the waterfront, Harbor Island Park, beach clubs, vibrant Village shops and dining, and Metro-North access to NYC. Designed with a modernist sensibility, the home showcases a refined palette of natural stone and warm wood, complemented by honey-toned floors, soaring ceilings, and expansive walls of glass that invite the outdoors in. A dramatic two-story foyer sets the tone, leading to a gallery-like living space and a stunning custom kitchen anchored by a 19-foot waterfall island and premium appliances, including an Italian Bertazzoni cooktop. The open-concept great room flows seamlessly to an expansive deck, level backyard sited for a pool, and a fully equipped outdoor kitchen with a Medallion grill beneath a pergola-perfect for effortless indoor-outdoor living. Thoughtfully designed for both everyday comfort and entertaining, the main level features two fireplaces, both gas and wood burning, an elegant dining room, wet bar, stylish powder room, generous walk-in coat closet, and a sunlit family room with soaring ceilings. Additional highlights include a well-appointed mudroom with access to the three-car garage, an oversized walk-in pantry, and three tranquil ensuite bedrooms. Upstairs, a central lounge opens to a sun-drenched deck with views of the harbor and boats, accompanied by two ensuite bedrooms, a spacious laundry room, a flexible nursery or office, and a full hall bath. The primary suite is a true retreat, offering a fireplace, floor-to-ceiling glass doors to a private balcony, a sitting area, a spa-like bath, and a boutique-style walk-in closet designed for two. All bedrooms are fully equipped with electric shades. The lower level adds approximately 1,300 square feet of versatile bonus space with direct access to the backyard through glass sliders-ideal for recreation, gym, wellness and future pool use. A rare offering of modern luxury, privacy, and effortless coastal living.