The Beacon Building is an office building in Downtown Columbus, Ohio. It is located in the Columbus Civic Center area, diagonal to Columbus City Hall. The mid-century modern building was designed by Benham, Richards and Armstrong and completed in 1957. It was first owned by the Beacon Mutual Indemnity Co., and was sold in 1978 to the City of Columbus, …The Beacon Building is an office building in Downtown Columbus, Ohio. It is located in the Columbus Civic Center area, diagonal to Columbus City Hall. The mid-century modern building was designed by Benham, Richards and Armstrong and completed in 1957. It was first owned by the Beacon Mutual Indemnity Co., and was sold in 1978 to the City of Columbus, which used it for government offices until 2018.