2002, the university established a presence in Manhattan with the opening of Stony Brook Manhattan. The original site was at 401 Park Avenue South; a newer operation opened in late 2008 in the adjacent building on the third floor of 387 Park Avenue South. The university consolidated operations in 2011 to just the 3rd floor of 387 Park Avenue South, with a classroom entrance around the corner at 101 East 27th Street. The 18,000-square-foot (1,700 m2) site allows Stony Brook to offer professional and graduate courses targeted towards students in New York City; undergraduate courses are held primarily during the summer and winter sessions. Conferences and special events take place throughout the year. In February 2017 however, the lease for this campus was terminated, and there are no classes offered at this location.
=== Southampton campus ===
On March 24, 2006, the university completed the purchase of the 81-acre (33-hectare) Southampton College (on the east end of Long Island) property from Long Island University …
