Elmcroft Estate, 38-room mansion in Upper Brookville, US.
Elmcroft Estate is a red brick mansion in Upper Brookville, on the North Shore of Long Island, New York, with around 38 rooms and an indoor swimming pool. The grounds also include garages, a white stucco stable block converted into guest housing, and a separate manager's cottage.
The mansion was built in 1918 by architects Little & Browne for Frank C. B. Page, president of E. W. Bliss Machine Works, a company that grew through wartime contracts. In 1952, the Soviet Union bought the property and used it as a diplomatic compound for several decades.
The converted stable block, now used as guest housing, shows how large estates on Long Island were built to function as self-contained worlds for their owners and staff. This pattern of wealthy families maintaining full residential compounds was common in this part of New York during the early 20th century.
The estate sits on Mill River Road and can be seen from the public road, where the stable block and manager's cottage are visible from outside the main grounds. The surrounding area is residential and rural, so a daytime visit gives the best view of the buildings.
Although the property served as a Soviet diplomatic compound for decades, it looks from the outside like a typical American country house, with no visible sign of its Cold War past. In 2016, the Russian government lost access to the site, bringing a quiet end to its long diplomatic role.
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