One Prudential Plaza (formerly known as the Prudential Building) is a 44 story structure in Chicago completed in 1955 as the headquarters for Prudential's Mid-America company. Chicago (ʃɪˈkɑːgoʊ is the largest City by population in the state of Illinois and the American Midwest of the United States. Year 1955 ( MCMLV) was a Common year starting on Saturday (link displays the 1955 Gregorian calendar) Prudential Financial, Inc ( is a Fortune Global 500 and Fortune 500 company whose subsidiaries provide Insurance, Investment management, and At the time, the skyscraper was significant as the first new downtown skyscraper built in Chicago in 21 years (the last such building was the Field Building, now headquarters of LaSalle Bank, completed in 1934). A skyscraper is a tall continuously habitable Building. There is no official definition or a precise cutoff height above which a building may clearly be classified as a skyscraper LaSalle Bank Corporation was the holding company for LaSalle Bank N Year 1934 ( MCMXXXIV) was a Common year starting on Monday (link will display full 1934 calendar of the Gregorian calendar. It was the last building ever connected to the Chicago Tunnel Company's tunnel network. The Chicago Tunnel Company built a unique freight Tunnel network under the downtown of the city of Chicago.
When the Prudential was finished it had the highest roof in Chicago with only the statue of Ceres on the Chicago Board of Trade higher. The Chicago Board of Trade ( CBOT) established in 1848 is the world's oldest futures and options exchange.
The architect was Naess & Murphy, a precursor to C. F. Murphy & Associates and later Murphy/Jahn Architects.
One Prudential Plaza, along with its sister property, Two Prudential Plaza, was sold in May 2006 for $470 million to BentleyForbes, a Los Angeles-based real estate investment firm, run by C. Two Prudential Plaza is a Skyscraper that was built in Chicago in 1990. May 2006 was a month with thirty-one days The following events also occurred during the month Frederick Wehba and his family.