Set within a meticulously restored 1901 Beaux-Arts landmark between Central and Riverside Parks, this four-bedroom, three-and-a-half-bathroom duplex at The Marbury Condominium offers something genuinely rare on the Upper West Side: 1,257 square feet of private outdoor space across four separate exposures, paired with 2,532 square feet of interior across two floors. Ten-foot-plus ceilings, southern light throughout, and a deeded storage unit round out the offering. A keyed elevator opens directly into the apartment, arriving at a gracious foyer that gives way to an expansive living and dining room. The chef's kitchen is outfitted with top-tier appliances and a vented hood, and a wall of sliding doors leads to a private balcony off the main living space. Three bedrooms sit on this level. The south-facing primary suite has its own balcony, a custom walk-in closet, and a marble bath with heated floors. Two additional bedrooms share a full bath, and a stylish powder room completes the floor. A sculptural spiral staircase rises to the upper level, an entertaining floor anchored by a fourth bedroom, full bath, and a gallery with built-in wet bar, all set between two terraces of approximately 590 and 580 square feet. The result is an indoor-outdoor configuration few Manhattan apartments can match, with open sky on multiple exposures and sightlines toward both parks. The Marbury's amenities are calibrated to the architecture: a 24-hour doorman, a wood-paneled private dining salon, a billiards room, and a residents' lounge with wine storage and kitchenette opening onto a landscaped courtyard. A fitness center with cardio equipment and an interactive training mirror completes the package. Positioned between two of the city's great parks and steps from the 1, 2, and 3 trains, the apartment sits at one of the most desirable crossroads on the Upper West Side. Some images have been virtually staged. 24-hour notice required for all appointment requests; please contact us to schedule a viewing.