The Commonwealth Building was a 21-story, 255-foot (78 m) building in Downtown Louisville, Kentucky located on the northwestern corner of Fourth Street and Broadway. The Commonwealth Building was built by James Graham Brown across Fourth Street from the Brown Hotel in 1928 and originally named after his late brother, Martin Brown. In 1955, a 17-story vertical addition was constructed which took the title of Louisville's tallest building away from the Heyburn Building, diagonally across Fourth and Broadway. The building featured a light beacon on its roof for a short time until being turned off due to complaints by residents in Floyds Knobs, Indiana.