St. Regis Chicago
3rd tallest finished building in Chicago

St. Regis Chicago is a mixed-use building in Chicago, with 101 floors, finished in 2020. It stands 363 m (1,198 ft) tall, which makes it the 3rd tallest finished building in Chicago.
Designed by Jeanne Gang's Studio Gang, with stacked glass frustums.
- Height
- 363 m · 1,198 ft
- Rank in Chicago
- 3rd of 25 listed
- Floors
- 101
- Completed
- 2020
- Use
- Mixed-use
- City
- Chicago, USA
Next to it in the ranking
1st · Willis Tower442 m · 1,451 ft · 1974
2nd · Trump International Hotel and Tower423 m · 1,388 ft · 2009
4th · Aon Center346 m · 1,136 ft · 1973
5th · 875 North Michigan Avenue344 m · 1,127 ft · 1969
See all of Chicago's tallest buildings
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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.