Chicago Aon Center










Aon Center - one of the highest skyscrapers of Peace, built in Chicago architect Edward Stone in 1972. It consists of 83 floors and has a height of 346.3 meters, as the second highest building in Chicago since the Sears Tower and the third highest in the United States.

Immediately after the building was built to the highest building in the world with marble facings. Over time, but under the influence of strong weathering marble lining beginning to crumble and had to withdraw. From 1990 to 1992 he worked, all the building was faced anew, this time with white granite (it is worth half of the spent money on the erection of a building). The building is equipped with special steel Farms with V-shaped piles on the perimeter in order to more effectively resist earthquakes, gusts of wind and minimize bending towers.

The owner of the building

Aon Corporation - the main owner of the building. It removes 47852 m2 (20.60%) area buildings. Also here are offices of companies:

  • BP
  • Kirkland & Ellis
  • DDB Worldwide
  • Element 79
  • Jones Lang LaSalle
  • Daniel Edelman Inc.
  • LocalLaunch! Inc.
  • ThoughtWorks
  • R.H. Donnelly
  • Strata Decision Technology
  • Chicagoland Chamber of Commerce
  • The Mid-America Club
  • Veolia

Location 200 East Randolph Street
Chicago, Illinois
Status Complete
Constructed 1970-1972
Opening 1973
Use Office
Roof 1,136 ft (346 m)
Technical details
Floor count 83 aboveground
5 belowground
Floor area 3,600,000 sq. ft.
334,448 m²
Elevator count 50
Cost $120,000,000 (USD)
Architect Edward Durell Stone
Contractor Turner Construction

Standard Oil of Indiana