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Hoover Building

Quick Facts

Building Name, Address:

Hoover Building, 1305 East Walnut Street, Des Moines

Primary Occupants:

Attorney General's Office, Department of Administrative Services, Department of Human Services, Office of the Chief Information Officer, Department of Revenue

Years Constructed:

1975 - 1978. First appropriation received in 1973.
Dedicated on June 9, 1979.

Designers & Builders:

Brooks, Borg and Skiles - Architecture Engineering
Vawter & Walter, Inc. - General Contractor
Brown Brothers, Inc. - Electrical Contractor
Proctor Mechanical Corporation
Johnston Controls - Automation


Construction on the Herbert C. Hoover State Office Building began in 1975. At the time, the General Assembly was unable to agree on a name so an essay contest was held among all Iowa public school history classes. The name "Herbert Clark Hoover," in honor of the 31st U.S. president and only Iowan to hold that office, was declared the winner. The original plans for the building called for four floors above ground and two floors below ground. However, when bids were received it developed that there was enough money in the appropriation to add another floor. Today the seven-story Hoover Building houses the largest number of employees on the Capitol Complex.

Green Features

  • Free cooling
  • Optimized steam heating
  • Air Handling Unit (AHU) economizers
  • Lighting schedules and Air Handling Unit (AHU) occupied/unoccupied schedules are programmed through the building automation system
  • Fluorescent lighting upgraded to efficient T-8 lamps with electronic ballasts
  • Incandescent bulbs replaced with energy-saving compact fluorescent lamps and LEDs
Hoover 1 Hoover 2 Hoover 3
Vestibule of the Hoover Building, looking down from the third floor. The fabric sculpture Tinctorial Spiral by Priscilla Sage hangs in the entryway.

Photo by: Darcy Pech

View of the Capitol from the Hoover Building atrium. Also in view are part of the downtown skyline and the Soldiers and Sailors Monument.

Photo by: Darcy Pech

The sculpture “Five Stones – One Tree” is situated to the west of the Hoover Building. Five limestone blocks and a ginkgo tree are incorporated into the 116-ton work.

Photo by: Darcy Pech