Classic Prewar Scale on Park Avenue in Carnegie Hill Bring your architect and create your dream home at 1155 Park Avenue, one of Carnegie Hill's most coveted prewar cooperative addresses. This gracious residence offers grand proportions, high ceilings, and a flexible layout, providing an exceptional opportunity to design a custom home on Park Avenue. A semi-private elevator landing opens to a dramatic 10' x 14' entrance gallery, which leads into expansive north-facing living and dining rooms overlooking the tree-lined streets of East 92nd Street. The generous proportions and classic layout provide the perfect canvas for elegant entertaining and comfortable everyday living. The windowed eat-in kitchen is currently configured with a butler's pantry, full laundry room, staff room, and staff bath, offering significant potential to reimagine the space as a modern chef's kitchen with breakfast area, den, and expanded service quarters. The corner primary suite enjoys bright south and east exposures and features two large closets and an en-suite bathroom that connects to a versatile dressing room, office, or sitting room, currently configured as a second bedroom. Two additional bedrooms share another full bathroom. The residence also includes a private 10' x 6' locked storage room in the basement, providing additional space for storage. Built in 1915 by Bing & Bing and designed by renowned architect Robert T. Lyons, 1155 Park Avenue is a pet-friendly, full-service prewar cooperative with approximately 60 residences. The building offers a 24-hour doorman and concierge, live-in superintendent, a newly renovated fitness center, bike room, laundry facilities, and private storage. The cooperative permits up to 40% financing. Ideally located in the heart of Carnegie Hill, the building is moments from Central Park, Museum Mile, the 92nd Street Y, and some of the Upper East Side's best restaurants, boutiques, and schools. A rare opportunity to reimagine a classic Park Avenue prewar residence in one of Manhattan's most desirable neighborhoods.