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801 Grand

Identification

801 Grand
Principal Tower, Principal Financial Group Building, 801 Grand Avenue
123036

Map

Structure in General

skyscraper
existing [completed]
caisson foundation
aluminum
copper
granite
curtain wall
postmodernism

Usages

commercial office
mercantile

Facts

  • Tallest building in Iowa.
  • While still on the drawing board the idea of a new projected tower was to provide high-quality office space as well as an attractive addittion to the city's skyline, complementing the urban fabric of Des Moines' CBD.
  • The three lower floors housing retail space, with the top one being connected to the city skywalk system, and a private restaurant on the top two floors were designed following the investment requirements.
  • 801 Grand Avenue is topped by eight-sided pyramid, which being clad with copper provides a unique sign of the tower.
  • It was named one of the 50 Most Significant Iowa Buildings of the 20th Century by the Iowa chapter of the American Institute of Architects.
  • The top half of the tower features a series of terraces and setbacks to visually decrease the building's impact on the city skyline.

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More Information

Location

801 Grand Avenue
50309
Des Moines
Iowa
U.S.A.

Technical Data

630.02 ft
630.02 ft
630.02 ft
45
1989
1991

Involved Companies


developer, electrical contractor, general contractor, mechanical systems installation, property management
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