Perched on the 20th floor of a full-service Upper East Side co-op, Residence 20B is a bright and well-maintained split two-bedroom, two-bathroom home featuring one of the most dramatic private outdoor spaces in the neighborhood; a 37-foot tiled balcony with sweeping open city, sky, and partial river views running the full length of the apartment. The generous living and dining area is bathed in natural light thanks to the northern exposure and oversized windows, with direct access to the balcony through sliding glass doors. The layout flows naturally for both everyday living and entertaining, and the split-bedroom configuration provides genuine privacy. With only two residences on the floor and the apartment spanning the full length of the building facing north, there are no shared common walls with neighbors; an exceptional degree of quiet and privacy rarely found in Manhattan. The kitchen was thoughtfully renovated and offers updated cabinetry, countertops, and appliances, providing a clean, functional space at the heart of the home. Both bathrooms are original and well maintained, with ample closet space found throughout the apartment. The primary bedroom is generously sized at over 10 by 13 feet and also enjoys direct balcony access - a rare feature that makes stepping outside feel like a natural extension of the room. The second bedroom is equally spacious at over 10 by 12 feet with excellent closet storage. 233 East 86th Street is a 22-story full-service co-op with a maximum of four apartments per floor, recently upgraded with a newly added gym equipped with various cardio machines, a new multipurpose co-working and lounge room, a renovated lobby, and a beautifully landscaped courtyard garden. Additional building amenities include a full-time doorman, resident manager, bicycle storage, complimentary storage areas, central laundry, and a duplex rooftop deck with sweeping city views. Perfectly positioned in the heart of the Upper East Side, the building is moments from multiple transportation options including the Q train and the 4/5/6 lines, along with the neighborhood's best dining, shopping, and cultural destinations. Gourmet markets including Fairway and Whole Foods are nearby. The building permits pieds-a-terre, guarantors, gifting, and washer/dryers, and welcomes pets. A liberal sublet policy is in place and up to 80% financing is allowed. A rare opportunity to own a high-floor home with one of the most enviable outdoor spaces on the Upper East Side, in a building that has just invested significantly in its future. **Assessment:** $1,262.16/month until March 31, 2027