Schinasi Mansion

The Schinasi House is a 12,000-square-foot (1,100 m²), 35-room marble mansion located at 351 Riverside Drive on the Upper West Side of Manhattan in New York City. It was built in 1907 for Sephardic Jewish tobacco baron Morris Schinasi. Completed in 1909 at the northeast corner of West 107th Street and Riverside Drive, the three-story, 12,000 square foot mansion was designed in neo-French-Renaissance style by William Tuthill.

Schinasi owned the thirty-five-room mansion until his death in 1928. After that the mansion changed hands several times until 1979 when Hans Smit, a Columbia University law professor, bought it and commissioned an extensive interior restoration. The structure was designated a New York City Landmark on March 19, 1974, and added to the National Register of Historic Places on April 23, 1980. It has been described as the last remaining detached single-family house in Manhattan that is still used as a residence. Since 2013, it has been owned by Mark Schwartz, a Goldman Sachs executive, who purchased it for $14 million.