The B. Harley Bradley House in Kankakee, Illinois, designed by Frank Lloyd Wright and built in 1900–1901, stands among the earliest and most important works of his Prairie School period. Commissioned by B. Harley Bradley and Anna Hickox Bradley, it embodied Wright’s emerging ideas through a low roofline, long bands of windows, stained glass, and strong horizontal lines that echoed the surrounding prairie. Large in scale, the property included the main residence, basement, and stable connected by a breezeway. Much of its original character survives, and it remains a significant landmark in Wright’s career and in American residential architecture.