Welcome to Apartment 2D at 137 Riverside Drive! A masterfully renovated six-bedroom, five-bathroom duplex offering an extraordinary 4,500 square feet of elegant living space in one of Riverside Drive s finest white-glove cooperatives. Seamlessly blending prewar grandeur with modern luxury, this meticulously maintained home has undergone two extensive renovations, ensuring impeccable finishes and thoughtful design throughout. The Upper Level: Upon entering, a gracious foyer sets the tone for the residence s grand proportions and refined details. The expansive living and dining area is a showstopper, boasting stunning west-facing views of Riverside Park and the Hudson River, intricate wood flooring with an elegant inlay pattern, and a marble-clad fireplace hearth that adds warmth and sophistication. The chef s kitchen is an entertainer s dream, featuring floor-to-ceiling custom cabinetry, sleek grey Caesarstone countertops, abundant cabinet and pantry space, and top-tier appliances, including a Sub-Zero refrigerator, Wolf range with vented hood, and Miele dishwasher. An oversized island seamlessly integrates with the dining and living areas, creating the perfect setting for casual gatherings. A private bedroom wing is located on the western end of the upper level. The corner primary suite features a wall of custom-fitted closets and a spa-like ensuite bath showcasing floor-to-ceiling marble, a massive walk-in rain shower, and a double vanity. An additional primary suite boasts its own ensuite bath adorned in classic subway tiling and a fully outfitted dressing room. The upper level is complete with two additional bedrooms and a den/media room, which share a newly renovated full bath, offering tremendous versatility and flexibility to suit your needs. The Lower Level: A Loft-Like Space with Distinctive Architectural Features. Descending the custom oval staircase, featuring LED-lit treads and a gracefully curved hardwood banister, you arrive at the versatile lower level a space that feels lofty yet private, thanks to 10-foot ceilings and the building s classic Riverside Drive moat setback design. A gracious gallery leads to the nearly 30-foot great room, complete with a marble-adorned decorative fireplace perfect for both formal and casual gatherings. A set of handsome French doors leads to a fully equipped in-law suite, featuring a renovated pantry, ensuite marble bath, and exceptional storage. An additional bedroom is tucked behind the staircase, offering a windowed, stylishly renovated bath and ample storage. Other standout features of this residence include custom Italian Calacatta marble inlays, sculpted marble windowsills, and quartersawn oak floors with elegant walnut trim, enhancing its timeless appeal. A multi-zone central AC system and new windows provide modern comfort and efficiency. Built at the turn of the century, The Clarendon is a white-glove, full-service, twelve-story cooperative that offers residents a full-time doorman, resident manager, fitness center, individual storage, laundry facilities, and a bicycle room. Located on the picturesque corner of West 86th Street and Riverside Drive, this home enjoys breathtaking park views, tree-lined tranquility, and easy access to the best of the Upper West Side, including fine dining, boutiques, bakeries, specialty stores, and cultural institutions. This turnkey, one-of-a-kind residence offers the perfect blend of townhouse-scale living and loft-like openness within a luxury, full-service building.