when was the us supreme court building built
United States Supreme Court Building The Supreme Court Building is the seat of the Supreme Court of the United States and the Judicial Branch thereof. 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.[1][2]