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Late 19th century apartment house developed by Frederick Aldhous and designed by Frederick T. Camp 7-story brownstone building erected in 1883, initially known as the Imperial, later as Dorincourt and La Casa Blanca
The Imperial, an architectural gem at 55 East 76th Street, was developed by Frederick Aldhous and designed by Frederick T. Camp in 1883. This seven-story neo-Grec brownstone building, which later became known as Dorincourt and La Casa Blanca, was converted to a cooperative in 1920, making it one of Manhattan's early co-op conversions.
The building was notably progressive for its time, featuring advanced safety measures including additional fireproofing, three exit stairways, and an innovative hydraulic elevator with special safety devices. It also boasted unique amenities such as 'ventilating iceboxes' built into exterior walls that could preserve food using cold outside air when ice wasn't needed.
Among its distinguished early residents were William R. Barnes, a founder of Barnes & Noble bookstores, and John M. Cornell, who headed the J.B. & J.M. Cornell ironworks. The building's original elegant features included tiled halls, mantelpieces with inset mirrors, and servant's quarters, though the original apartment layouts were considered narrow by modern standards.
Today, the 21-unit building maintains its historic character while offering modern amenities. The entrance features a four-step-up approach with an attractive cast-iron front door. The apartments showcase period details including high ceilings (approximately 11 feet), decorative fireplaces, pocket doors, and oak and walnut parquet floors.
The Imperial operates with a part-time doorman and full-time superintendent, offering amenities such as storage space and laundry facilities. The co-op's policies are notably flexible, allowing pets, pied-à-terre ownership, and up to 70% financing.
Many units have undergone sophisticated renovations while preserving their pre-war character, featuring modern kitchens with high-end appliances and updated bathrooms, seamlessly blending historic charm with contemporary comfort.
Situated between Madison and Park Avenue, the building enjoys a prime Upper East Side location near Central Park, The Carlyle Hotel, world-class museums, and Madison Avenue's luxury shopping district.
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For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.
By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.
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