1355 1st Avenue 26-Flr Perched atop the 26th floor of The Charles Condominium, this extraordinary full-floor residence offers 3, 595 square feet of impeccably designed living space with four bedrooms, four bathrooms, and a separate den. Combining the scale and privacy of a townhouse with the convenience and security of luxury condominium living, this is a rare opportunity to own one of the Upper East Side's premier residences. A private elevator landing opens directly into a sun-drenched home where floor-to-ceiling glass, 10-foot ceilings, and sweeping city views create an immediate sense of volume and light. With exposures in every direction, the residence is flooded with natural sunlight throughout the day while offering dramatic skyline vistas from nearly every room. The sprawling great room is the centerpiece of the home, spanning more than 30 feet in width and framed by nearly 50 feet of floor-to-ceiling windows. Designed for both grand entertaining and everyday living, the space seamlessly accommodates expansive living and dining areas while showcasing breathtaking city views. Anchoring the home is a beautifully appointed chef's kitchen featuring an oversized center island, custom cabinetry, and a suite of premium Miele and Sub-Zero appliances. Thoughtful design and exceptional craftsmanship are evident throughout, with bespoke and refined finishes elevating every detail. Located just off the kitchen, the den provides exceptional flexibility and can easily function as a media room, home office, library, or informal lounge. The primary suite is a private retreat unto itself, enjoying open skyline views and exceptional natural light. The windowed spa bathroom is finished in Bianco Dolomiti marble and features dual vanities, a deep soaking tub, and a separate glass-enclosed shower. A custom walk-in closet and extensive additional storage complete the suite. Three additional bedrooms are generously proportioned, each offering excellent closet space and its own beautifully finished en-suite marble bathroom. Additional features include wide-plank hardwood flooring, radiant heated floors in select areas, and a dedicated laundry room equipped with premium Electrolux appliances. Designed by renowned architects Ismael Leyva and Richard Handel, The Charles is one of the Upper East Side's most sought-after boutique condominiums, offering white-glove service, a state-of-the-art fitness center, children's playroom, bicycle storage, and private storage for each residence. With unobstructed skyline views, full-floor privacy, and exceptional proportions rarely found in today's market, Residence 26 at The Charles represents a truly special offering in one of Manhattan's most prestigious residential enclaves.