Greentree
| Greentree | |
|---|---|
| General information | |
| Type | Estate |
| Location | Manhasset, Long Island, New York |
| Coordinates | 40°47′23″N 73°41′32″W / 40.78972°N 73.69222°W |
| Opened | 1904 |
| Owner | Payne Whitney (original) Greentree Foundation (current) |
Greentree is a 400-acre (1.6 km2) estate in Manhasset, on Long Island, New York. The estate was constructed for businessman Payne Whitney in 1904 and was owned by members of the Whitney family for much of the 20th century. It is currently owned by the Greentree Foundation, a philanthropic nonprofit organization.