DuPont-Guest Estate

DuPont-Guest Estate
South façade with the front entrance
LocationSouth side of Northern Blvd. between Cotillion Ct. & DuPont Ct., Brookville, New York
Coordinates40°48′32.31″N 73°36′53.23″W / 40.8089750°N 73.6147861°W / 40.8089750; -73.6147861
Area44.24 acres (17.90 ha)
Built1916
ArchitectCarrère and Hastings
Architectural styleGeorgian Revival
NRHP reference No.09001084
Added to NRHPDecember 11, 2009

The DuPont-Guest Estate, now known as the NYIT de Seversky Mansion, is a historic estate located at Brookville in Nassau County, New York. Since 1972, it has been part of the Old Westbury campus of the New York Institute of Technology (NYIT).