Chicago Architecture Info

One Prudential Plaza



Also known as One Pru
Formerly The Prudential Building
Address 130 East Randolph Street, Chicago, Illinois 60601
Neighborhood The Loop
Built 1952 - 1955
Architecture firm Ness and Murphy
  • Office
  • Skyscraper
  • Retail
Floors 41
Roof height 601 feet
Maximum height 912 feet
Rentable floor space 1,200,000 square feet


  • This was the tallest building in Chicago when it was completed, taking that title away from the Chicago Board of Trade.
  • This was the first skyscraper built in Chicago after World War II.
  • The Prudential company's Rock of Gibraltar logo is in relief with gold accents on the lower extension of the building. This was executed by Alfonso Ianelli.


1968 Renovated to a design by C.F. Murphy and Associates
September 2010 This building was named #29 on Chicago Magazine's list of the Top 40 Buildings in Chicago.