One Charles Center vs One Illinois Center

Comparing the One Charles Center and the One Illinois Center is compelling because they were both designed by Mies van der Rohe, yet they stand in different cities (Baltimore, MD and Chicago, IL), and were completed more than 8 years apart.

What this will allow us to see, is how the same firm's approach adapted to different places at roughly the same time (8 years isn't that much time when it comes to urban context and architecture).

The One Illinois Center is clearly the larger tower of the two, both in terms of height and number of floors. It rises to 361ft (110m) with 30 floors above ground, while the One Charles Center reaches 269ft (82m) with 23 floors above ground.

Of course, each project may have faced different briefs or regulatory constraints, which we don't really know about and could also explain the outcome.

Both the One Charles Center and the One Illinois Center were designed in line with the aesthetic conventions of the International Style style.

At the time, this style was at the height of its popularity. So Mies van der Rohe followed what was in many ways expected at the time, producing designs that fit comfortably within contemporary architectural norms rather, than breaking with convention.

Both the One Charles Center and the One Illinois Center were designed to serve as commercial towers, and that has remained their main use since their completion, serving similar roles in the urban fabric.

The One Illinois Center also provides 866 parking spaces.

Both the One Charles Center and the One Illinois Center rely on a Frame structural system.

A frame structure uses a grid of columns and beams to carry the building's loads. This frees the walls from structural duties, allowing for flexible floor plans and larger windows.

They also employ the same type of facade, a Curtain Wall facade.

A curtain wall is a non-load-bearing facade hung from the structural frame. It is anchored to floor slabs and transfers only its own weight and wind loads, allowing for sleek, glassy exteriors.