A captivating and comfortable 1930 penthouse high atop one of Carnegie Hills Art Deco gems, designed by noted American architects Sugarman (a J.E.R. Carpenter alumnus) & Berger. The chic and charming 2,750 square foot, 8 room cooperative apartment boasts any gardeners delight - a 43.5 foot long setback terrace, perfect for outdoor dining and entertainment. This exceptional aerie, available for the first time in 50 years, was custom designed for a daughter the buildings owner and was once home to iconic American actor and comedian Milton Berle. Light-flooded and beautifully proportioned, the apartment features a 23 foot Gallery with original terrazzo flooring. An enfilade of 3 gracious reception rooms overlooks the 300 square foot terrace. In the vast 27.5 foot Living Room, a pair of original steel casement French doors bookend a wood-burning fireplace with a beautiful marble mantelpiece. The adjacent corner Library/Third Bedroom and a sunlit corner Solarium/Study with original slate flooring and art glass steel casement windows also overlook the terrace. The Gallery leads to a generous Dining Room, which adjoins the Solarium. Authentic Art Deco architectural details include oak herringbone parquet flooring, whimsical leaded art glass windows, detailed crown moldings and period tilework throughout. This classic Upper East Side residence also includes 3 large Bedrooms, 4 Bathrooms, a corner south-facing windowed Kitchen, and a Staff or 4th Bedroom. The versatile floorplan is thoughtfully designed with superb scale, ceilings measuring 9 foot, 6 inches and outstanding storage (15 closets). The elegant Art Deco Lobby at 40 East 88th Street has been meticulously restored to its original design. Amenities include a state-of-the-art gym, a central Laundry Room, and a bicycle storage room. The well-staffed cooperative affords maximum privacy and excellent security, with a Resident Manager and full-time Doorman and Concierge services. Dogs and cats are permitted, as is financing of up to 50% of the purchase price. Washer/dryers are permitted with Board approval. There is currently in place a monthly Operating Assessment of $2,670 through December 2024. Its prime location at the corner of Madison Avenue and East 88th Street (at the crest of the Carnegie Hill) is in close proximity to Central Park, Museum Mile and is convenient to the fine restaurants, galleries and boutiques of Madison Avenue. 40 East 88th Street is zoned for P.S. 6 - Lillie D. Blake Elementary School and is close to a number of other excellent educational institutions. The apartment transfers with a private storage locker.