The Supreme Court Building is the seat of the Supreme Court of the United States. Completed in 1935, it is situated in Washington, D.C. at 1 First Street, NE, on the block immediately east of the United States Capitol. The building is under the jurisdiction of the Architect of the Capitol. On May 4, 1987, the Supreme Court Building was designated a National Historic Landmark. It is one of a handful of National Historic Landmarks which are not listed on the National Register of Historic Places.