The Prairie style was developed in the late-19th and early-20th centuries by Frank Lloyd Wright and other architects as "a modern architecture for a democratic American society." Because it was largely developed in the Chicago area, this style is well represented here by some of the most important buildings of the early-20th century. Significant examples can be found in Rogers Park, Hyde Park, and Beverly.

Common characteristics are:

• horizontal proportions
• flat brick or stucco walls, often outlined with wooden strips of contrasting color
• windows with abstract, geometric ornament
• hip or gable roofs with wide, overhanging eaves

1.	Robie House; 57th Street Elevation, photo by Richard Nickel