What is a major theme in the designs of Late 19th-century Chicago architecture?

The major theme in the designs of Late 19th-century Chicago architecture is practicality and efficiency. This period was characterized by a shift towards designs that were functional and suited to the rapidly growing urban environment. Architects such as Louis Sullivan emphasized the importance of designing buildings for their intended use, leading to the creation of structures that maximized space and utility.

This focus on practicality was further fueled by advances in engineering and materials, such as steel framing and reinforced concrete, which allowed for taller and more resilient buildings. The Chicago School of architecture emerged during this time, championing the idea that form should follow function. Buildings were designed to serve specific purposes, reflecting the needs of a bustling city rather than simply adhering to traditional ornamental styles.

While other themes like classical ornamentation, opulence, and eclectic styles do appear in various historical contexts and regions, they were not the defining characteristics of Late 19th-century Chicago architecture. The emphasis was truly on creating innovative solutions for urban living and commerce, making practicality and efficiency central to its aesthetic and functional ethos.