This spectacular grand "Classic Six" has been exquisitely renovated, with no detail overlooked and no expense spared. Equally suited for elegant entertaining and comfortable everyday living, this exceptional residence welcomes you from the moment you step off the semi-private landing into a world of space and luxury. A gracious entry foyer leads to expansive end-to-end living and dining rooms spanning more than forty feet, showcasing timeless prewar elegance, including stunning high coffered ceilings. The inviting living room features a fireplace and a cozy library area, creating the perfect setting for both relaxation and entertaining. The adjacent, enormous dining room features a wet bar and washing station, as well as open access to the chef's kitchen, thoughtfully designed with dual sinks, dual dishwashers, dual refrigerators, and abundant custom cabinetry. The former maid's room has been partially opened to the kitchen, with a built-in office area, washer/dryer, and extensive storage space. The oversized primary suite offers a spa-like bathroom with a large, luxurious shower and an impressive wall of custom closets. The second bedroom is equally grand, featuring beautiful built-ins and French doors that allow it to function either as a spacious private bedroom or as a seamless extension of the entertaining areas. Built in 1928 by the esteemed architects Schwartz & Gross, 440 West End Avenue is a classic full-service cooperative with 24-hour doorman who remotely controls the elevator, live-in superintendent, full staff, roof deck, fitness room, bike room, playroom, and private storage. The building has recently completed a full electrical upgrade, installed new gas lines, and earned an A energy rating and is pet-friendly too. Ideally located on the corner of West End Avenue and 81st Street, this distinguished home provides convenient access to premier shopping, fine dining, transportation, and all the best the Upper West Side has to offer.