By 1922, Curwood had become very wealthy from the success of his writing. After a tour of Europe with his family where he toured old European castles, he came home and built his own, Curwood Castle in Owosso, Michigan. Constructed in the style of an 18th-century French chateau, the castle is set on the Shiawassee River near downtown Owosso. In one of the castles two large turrets, Curwood set up his writing studio. He also owned a lodge on the Ausable River near Roscommon, Michigan that he used as a retreat for rest and relaxation from his rigorous writing career.