What was the name of Frank Lloyd Wright's first independent commission after leaving Adler & Sullivan?

Frank Lloyd Wright’s first major independent commission after leaving Adler & Sullivan was the William H. Winslow House. He designed it in River Forest, Illinois, and it was built in 1894–95.

The house was commissioned by William H. Winslow, a publisher and client from Wright’s Oak Park circle. Its design already shows ideas that would become central to Wright’s Prairie School: strong horizontal lines, a low profile, geometric ornament, and a close relationship between the building and its site.

Wright had worked in the Chicago office of Adler & Sullivan, where Louis Sullivan strongly influenced his thinking about architecture. After departing in 1893, Wright established his own practice. The Winslow House became an important early demonstration that he could develop a distinctive architectural language independently.

Wright later called it the first “prairie house.” It is often confused with better-known later works such as Fallingwater, the Robie House, or the Dana-Thomas House, but those commissions came years afterward and represent later stages of his career.