Sears its naming rights to the building expired in 2003 it remained the Sears Tower until early 2009. In March 2009 London-based insurer Willis Group Holdings, Ltd., was given the building's naming rights to encourage them to occupy the building. The official renaming as the "Willis Tower" took place on Thursday, July 16, 2009, during a public ceremony hosted by Willis Group Holdings. In the 1990s, the company began divesting itself of many non-retail entities, which were detrimental to the company's bottom line. Sears spun off its financial services arm which included brokerage business Dean Witter Reynolds and Discover Card. It
The Buckingham (Chicago) floor of the building for a total of 306 units. An indoor pool, sauna, laundry room, fitness center and open roof deck are located on the top floor. The Buckingham has 3 high-speed elevators that run the length of the building plus one elevator that runs from the first floor to each floor of the 4-story underground parking garage. The Buckingham is east of 340 on the Park. It appears (unlabelled) in front of Park Tower (Chicago) in the diagram below. The Buckingham (Chicago) The Buckingham, formerly known as Buckingham Plaza, is a 44-story all-residential condominium designed by Fujikawa Johnson