Rare opportunity to purchase a fully renovated and exceptional 15 into 11 room home (4 beds/convertible 5 beds, 6.5 baths, home office, and entertainment room) perfectly located in the heart of Carnegie Hill. Spanning approximately 4600 sq ft, the meticulously designed layout is ideal for hosting large gatherings and contemporary living. Originally 15 rooms, this apartment's size, storage, and location is unparalleled!Upon entering this magnificent home from a private elevator landing, you are welcomed by a gracious gallery with hand-cut granite floors and a large double door coat closet. The expansive living/dining room is filled with natural sunlight and a wall of windows facing southeast over Madison Avenue. There are pristine mahogany herringbone floors and high beamed ceilings throughout the apartment. The suburban-sized eat-in-kitchen is a chefs dream; the kitchen has an abundance of natural sunlight, a large center island, granite floors, custom cabinetry, enormous amounts of storage, and all top-of-the-line appliances including Sub-Zero refrigerator and under-counter beverage refrigerator, Wolf 6-burner range with griddle, two ovens & warming drawer, vented hood, Miele dishwasher and espresso machine, and Traulsen wine refrigerator with capacity for 150 bottles. In addition, there is a wet bar, butlers pantry, and full-sized breakfast area with a banquette seating up to 8 people. For all your entertaining needs, there is also a massive Entertainment Room with double exposures facing both south and east as well as a connected full bathroom. The Entertainment Room is so large that even a portion can easily be converted into a 5th bedroom. There is an additional Guest Powder Room.The separate bedroom wing consists of 4 generously-proportioned bedrooms located on the other side of the apartment allowing for maximum privacy. The oversized Primary Bedroom Suite features two large dressing rooms, two en-suite bathrooms, and a decorative marble fireplace. The other three bedrooms are all spacious with walk-in-closets and en-suite bathrooms. In addition, there is a sun-filled Home Office (convertible into an additional bedroom) and a large Laundry Room with a sink and full-size washer and vented dryer.Additional special features include: Multi-zone HVAC system controlled by Honeywell programmable thermostats and accessible by phone, built-in Sonos entertainment system throughout the public rooms, CitiQuiet windows, recessed lighting, crown moldings, high ceilings, pre-war details, and private storage in the basement.21 East 87th Street, an Emery Roth designed building, is a highly coveted pre-war cooperative in Carnegie Hill. There is a 24-hour doorman, live-in resident manager, fitness room, bike room, laundry room, and private storage for each apt. Pets allowed. It's conveniently located between Madison Avenue and Fifth Avenue, and it's within steps of Central Park, Museum Mile, 92NY, public transportation, and prestigious public and private schools. $1514.17/month capital assessment through Dec. 2025. 65% financing allowed. 2% Flip Tax.