The Plaza Building, also known as the The Plaza Condominiums, is a high-risecondominium building located in downtown Des Moines, Iowa, United States. The building rises 25 floors and 340 feet (104 m) in height. It is currently the 5th-tallest building in the city.  Designed by the architectural firm of Stageberg Beyer Sachs, Inc., the building was completed in 1985. It is essentially a modernist building, but it exhibits elements of the Postmodern style. These are found in the light and dark colored banding at the base and the blue hipped and gabled roof.