801 Grand, also known as the
Principal Building, is a skyscraper in
Des Moines,
Iowa, United States. It is named after its street address, being located along Grand Avenue in the downtown area of the city between 8th and 9th Streets, with High Street the northern border. Completed in 1991 and standing at , it is currently the tallest building in the state of Iowa, and the tallest building from
Chicago to
Omaha and from
Minneapolis to
Tulsa.