19 E 88th St, New York, NY 10128

A rare duplex penthouse on one of Carnegie Hill's most coveted blocks, set between Fifth and Madison Avenues in a distinguished prewar Art Deco cooperative steps from the Guggenheim Museum and Central Park, with direct unobstructed views of the Jacqueline Kennedy Onassis Reservoir from three private terraces. Following an 18-month down-to-the-studs renovation, every system was replaced and every surface rebuilt. Ceilings were raised to a commanding eleven feet, oversized windows were installed throughout, and a new five-zone Mitsubishi central HVAC, full electrical and plumbing replacement, and integrated infrastructure upgrades were completed. The result is a residence with the soul of a 1937 prewar penthouse and the systems of new construction. The lower level is anchored by an entertaining-scale living room measuring 24 by 17 feet, centered on an operational wood-burning fireplace crowned by an authenticated 18th-century French mantel from the era of Louis XV, imported from France and set into a meticulously restored wall. It is the kind of detail that cannot be sourced today at any price. A custom kitchen with SubZero, Wolf, and Miele appliances, marble countertops, and custom millwork runs along the building's southern exposure, flowing into a separate dining room and family room with private balcony access. A windowed powder room and Miele washer-dryer complete the level. The upper level, accessed by a sculptural stair, holds the residence's two bedroom suites. The primary suite occupies the western quadrant with a wrap-around terrace facing south and west, a walk-in closet, and a marble bath finished in Waterworks. The second bedroom sits at the southern end with its own private terrace and an ensuite bath including a soaking tub. The current two-bedroom configuration readily reverts to the original three-bedroom layout by reclaiming the lower-level family room, sized to true bedroom proportions at 11'3" by 16'10". Constructed in 1937 by Wallenstein Construction Company and designed by William M. Dowling, the cooperative offers full-time doormen, a live-in superintendent, a windowed laundry room, a newly landscaped roof deck, a fitness center, bike room, private storage, and a pet-friendly policy. A 2 percent flip tax is payable by the purchaser. Financing is permitted up to 50 percent of the purchase price. Maintenance is $6,050 monthly. A monthly assessment of $985 is in place through 2027.