This sprawling, high floor, one-of-a-kind 4BR/4BA co-op with condo rules combines timeless prewar character with the luxury of modern amenities, an unparalleled offering in the heart of the Upper West Side. Just steps from Riverside Park, with its dog run and easy access to Hudson River Park, the home offers the best of city living and outdoor leisure. At its center is a dramatic octagonal double-height living room with soaring coffered ceilings and solid white oak floors, complemented by a windowed chef’s kitchen outfitted with Miele, Wolf, and Gaggenau appliances, custom cabinetry, and pearl-grey quartzite finishes. A separate dining area sets the stage for both intimate meals and grand entertaining. The private primary suite is bathed in light from three oversized windows and features a spa-like bath with dual vanities, a freestanding tub, walk-in shower, and dressing room. Two of the secondary bedrooms, each with ensuite baths, are thoughtfully separated from the primary suite and entertaining areas, offering privacy and comfort. The versatile fourth bedroom, equally ideal as a den or home office, features its own ensuite bath with a secondary entrance from the main living areas, seamlessly balancing flexibility and convenience. Modern comforts abound, including a zoned HVAC system, washer/dryer, and pre-wiring for advanced home automation. The apartment is also wired for Ethernet in every room, includes a dedicated ventilated media closet, and features wiring for motorized shades throughout, ensuring seamless connectivity and convenience at every turn. What truly sets this residence apart is the lifestyle it affords: over 17,000 square feet of recently built amenities, designed as an extension of your home. Residents enjoy a full-service staff and concierge, an elegant lobby, double library, private screening room, fitness center, game room, party lounge with catering kitchen, and a spacious children’s playroom. A rare offering: prewar charm, versatile living, and world-class amenities, all in a premier Riverside Park location.