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362.9 metres tall, St. Regis Chicago is a mixed-use skyscraper in Chicago, United States. It ranks number 73 among the world's tallest completed buildings by architectural height. [2]
| Architectural height | 362.9 m1,191 ft |
| Height to tip | Not confirmed |
| Highest occupied floor | Not confirmed |
| Observation deck | Not confirmed |
| Floors above ground | 101 |
| Floors below ground | Not confirmed |
| Completed | 2020 |
Directory record added 9 September 2026. The original top-ten engineering dossiers have a deeper independent review; this record does not claim that same verification level. See source ↗
Project evidence, construction records and the limits of what is documented. A named consultant’s role is kept separate from the architect, contractor and local engineer of record.
MKA describes a buttress-coupled dual-core system that uses the combined width of the interconnected volumes to resist lateral loads. This lets the structure work across a wider stance while accommodating hotel and residential layouts.
A double-height open level allows wind to pass through the building. MKA reports reduced overturning forces from this arrangement. Six tuned liquid damper tanks then address acceleration by timing their water motion against the tower’s motion. Aerodynamic modification and added damping serve related but different roles.
MKA identifies itself as structural engineer and McHugh Construction as contractor. Its team listing credits bKL Architecture with Studio Gang, Gensler and Loewenberg Architects. The percentages in the engineer’s account describe its project analysis; they are not transferable to another tower.
Technical source checked : Magnusson Klemencic Associates: St. Regis Chicago ↗. This check covers the notes above, not every measurement in the directory.
| Topic | Recorded information | How to interpret it |
|---|---|---|
| Structural system | Buttress-coupled dual-core system [source] | The frame description needs to distinguish gravity support from wind and earthquake resistance. Read the engineering guide ↗ |
| Main structural material | concrete steel [source] | A material label does not establish steel grade, concrete strength, fire protection or connection details. Read the engineering guide ↗ |
| Basement levels | Not confirmed | Basement count does not establish pile depth, founding stratum, bearing pressure or the excavation sequence. Read the engineering guide ↗ |
| Elevator count | Not confirmed | Car count does not establish passenger capacity, speed, zoning, redundancy or peak traffic performance. Read the engineering guide ↗ |
| Construction start | Not confirmed | A start year can refer to enabling works, foundations or the main construction contract. Read the engineering guide ↗ |
| Structural topping out | Not confirmed | Topping out marks a structural milestone; facade work, commissioning and occupancy can follow later. Read the engineering guide ↗ |
The directory records 362.9 metres of architectural height and 101 above-ground floors. The highest occupied level has not been confirmed here. Measurement source ↗
Dividing architectural height by floor count would include the crown and any unequal floor heights. It cannot be used as a typical floor-to-floor dimension, a measure of slenderness or a structural design input.
Foundation tests, core and column sizes, construction-stage stability, creep and shortening allowances, wind-tunnel results and facade movement tolerances need project-specific evidence. Their absence here does not imply that the project lacked those studies.
Height bars use the same scale. They do not represent building shape. Measurement source ↗
Record updated 2026-09-16. Sources can differ on height categories, floor counts and completion milestones. Read our methodology.
Directory record updated . No dated field checks have been recorded. Updating the page does not re-verify every fact.
| Checked | Field | Evidence and decision |
|---|
These notes predate this visible log. Their original change dates are not reconstructed.
Earlier record edits may not have a complete audit trail. Read the methodology and correction policy ↗
St. Regis Chicago reaches 362.9 metres (1,191 feet) by architectural height.
It was completed in 2020.
St. Regis Chicago stands in Chicago, United States.
It has 101 above-ground floors.