451 Mountain Ave This luxury rental opportunity offers an award-winning modernist residence designed by UKZ Architects an architectural icon just 19 miles from NYC. Renovated in 2023, the home blends timeless design with super-chic, 21st-century updates. Soaring 10 to 12 ft ceilings and dramatic floor-to-ceiling windows flood the first floor with natural light and create seamless indoor-outdoor living. The landscaped garden, romantic wisteria, and expansive 34' x 23' Entertaining Terrace set the stage for unforgettable gatherings. The designer kitchen features Wolf appliances, Sub-Zero fridge, and Miele dishwasher. The spacious primary suite includes a cathedral ceiling and a newly designed 22-ft spa-like bath. Custom herringbone hardwood floors enhance the second level and family room. Additional highlights: updated powder room, wine room, cedar wardrobe closet, oversized two-car garage, and private motor court. Close to shopping, dining, Montclair, NYC transit, and Walker Park. A rare chance to lease a truly exceptional home that combines high design, comfort, and convenience.