The Chicago Athletic Association is a project where historic preservation and structural 

engineering intersect in a uniquely challenging way. After numerous unsuccessful 

attempts to repurpose the landmark building, the current ownership successfully 

transformed the property into one of the premier hospitality destinations on Michigan 

Avenue. The adaptive reuse required extensive structural evaluation, renovation, and 

modernization while preserving the architectural character that has made the building 

an iconic part of Chicago’s cultural landscape.

The project scope encompassed a wide range of structural interventions, including 

renovation of the sub basement, reconstruction of historic canopies, modification of 

existing floor systems, strengthening of framing elements, enhancement of the lateral 

force resisting system, augmentation of foundation components, and the addition of a 

new rooftop amenity space. Each intervention required careful investigation of existing 

conditions and a thoughtful balance between preservation objectives and modern 

performance requirements.

One of the most significant challenges involved the creation of a new vertical addition 

that would capitalize on the exceptional views overlooking Grant Park and Michigan 

Avenue. The development team challenged the design team to identify a structurally 

viable solution that would minimize impacts to the existing building while maximizing 

the value of the new rooftop space. The resulting design utilized a double cantilevered 

structural system supported by a limited number of strategically strengthened interior 

columns. This approach successfully eliminated additional loading on the building 

perimeter, where historic settlement concerns were most pronounced, while providing 

the support necessary for the new addition.

Throughout both design and construction, the project team engaged in a continual 

process of investigation, adaptation, and problem solving as previously unknown 

conditions were uncovered within the century old structure. These challenges were 

compounded by one of Chicago’s harshest winters in recent memory, requiring flexibility 

and close coordination among all project stakeholders. The completed project stands 

as a successful example of adaptive reuse, celebrating the building’s historic legacy 

while thoughtfully introducing modern amenities and structural improvements. The 

result is a revitalized landmark that honors its past while contributing to the continued 

evolution of one of Chicago’s most recognizable corridors.