Gould-Guggenheim Estate | |
 Hempstead House | |
   | |
| Location | 95 Middle Neck Rd, Port Washington, New York |
|---|---|
| Coordinates | 40°51′34″N 73°41′47″W / 40.85944°N 73.69639°W |
| Area | 216 acres (87 ha) |
| Built | 1909 |
| Architect | Allen, August et al. |
| Architectural style | Late 19th and 20th Century Revivals |
| NRHP reference No. | 06000881[1] |
| Added to NRHP | September 29, 2006 |
Hempstead House, also known as the Gould-Guggenheim Estate or Sands Point Preserve, is a large American estate that was built for Howard Gould and completed for Daniel Guggenheim in 1912. It is located in Sands Point on the North Shore of Long Island in Nassau County, New York.