Willis Tower
Tallest finished building in Chicago
Willis Tower is an office building in Chicago, with 110 floors, finished in 1974. It stands 442 m (1,451 ft) tall, which makes it the tallest finished building in Chicago.
The world's tallest building from 1974 to 1998, first known as the Sears Tower.
- Height
- 442 m · 1,451 ft
- Rank in Chicago
- 1st of 25 listed
- Floors
- 110
- Completed
- 1974
- Use
- Office
- City
- Chicago, USA
Next to it in the ranking
2nd · Trump International Hotel and Tower423 m · 1,388 ft · 2009
3rd · St. Regis Chicago363 m · 1,198 ft · 2020
See all of Chicago's tallest buildings
Talk about Chicago
Open the Chicago city forum for news, photos and questions about the skyline.
Heights, floors and years for finished buildings follow published figures, cross-checked with Wikipedia's list of tallest buildings in Chicago. Last checked 2 Nov 2026.