The U.S. Court House in Downtown Los Angeles is a Moderne style building that originally served as both a post office and a court house. The building was designed by Gilbert Stanley Underwood and Louis A. Simon. In recent years, it has functioned as a court house with judges from the United States District Court for the Central District of California. There is an another federal court house in the Roybal Building in Downtown Los Angeles. In February 2006, the U.S. Court House and Post Office was added to the National Register of Historic Places.