Leland Castle (also known as Castle View) is a building in New Rochelle, New York. It was constructed during the years in 1855 - 1859 in the Gothic Revival style, and was the country residence of Simeon Leland, a wealthy New York City hotel proprietor. Leland began to assemble an estate as early as 1848, and in 1855, began the erection of this palatial 60-room mansion. The home was designed by New York City architect . A north and south wing were added to the castle in 1899 and 1902 respectively.