Scottish-style castle on the Hudson River, built in the early 1900s. In 1968 New York State purchased the island and its deteriorating structures and in 1982 Bannerman Castle was listed on the National Register of Historic Places. The family finally sold Bannerman Castle to the State of New York in 1967. Francis Bannerman died in 1918, and the family business operated until the 1970s out of a warehouse in Blue Point, Long Island. Bannerman died in 1918, and a massive explosion damaged the edifice in 1920. Bannerman Castle is located on Pollopel island, 6 3/4 acres of mostly rock in the Hudson river near Cornwall-on-Hudson, New York. The castle was built by Francis Bannerman, a 20th-century Scottish arms trader, but was abandoned in the 1950s. A munitions expert was hired to remove any remaining dangerous ordnance, and the city took possession of all the remaining merchandise, some of which was donated to the Smithsonian Institution in Washington, D.C. Now owned by the state of New York, Bannerman is named for Francis Bannerman (1851-1918), a Scottish arms dealer raised in Brooklyn, who bought … All weekend tours are on the Estuary Steward, a 44 passenger boat. The abandoned Bannerman Castle sits on Pollepel Island in New York's Hudson River. By 1950 the castle and island were vacant. The family finally sold Bannerman Castle to the State of New York in 1967. In central New York, 50 miles north of New York City on the Hudson River, is a small spit of land known as Bannerman Island. Out on Pollepel Island on the Hudson River in New York, Bannerman Castle is a piece of the past that you'll be fascinated to see overrun by Mother Nature. Since 1994, nonprofit Bannerman Castle Trust has worked in conjunction with the Parks Department to maintain the castle. Once a fortress for weapons, the castle is only accessible by private boat. Decades of decline, plus a huge fire in 1969, left the structure in ruins by the 1990s, when the Bannerman Castle … In 2009 almost 40 percent of the remaining structure collapsed. Experience a 2.5 hour tour with .5 hr cruise to Bannerman Island-Hudson Highlands State Park, a 1.5 hour guided tour of the island, and a .5 hour return cruise to Newburgh or Beacon. New York State bought the island in 1967 and it currently belongs to the New York State Office of Parks, Recreation, and Historic Preservation. It was built by Frank Bannerman VI, not as a home, but as a place to store items such as weapons and ammunition that he purchased at government auctions. In 1967, the family sold Bannerman Castle to New York State, which took possession after all of the old military merchandise was removed and the relics given to the Smithsonian. BANNERMAN CASTLE.