Built in Wausau, Wisconsin, between 1938 and 1941, the Charles L. Manson House is one of Frank Lloyd Wright’s earliest Usonian houses and an important early expression of his approach to affordable, landscape-centered domestic design. Commissioned by Charles “Fritz” and Dorothy Manson, the house was planned to descend a wooded hillside and emphasize flowing interior space, built-in furnishings, and strong connections between indoors and outdoors. Its concrete slab, cypress walls, local brick, and angular modular design balanced economy with spatial complexity. Carefully preserved, it later received both National Register of Historic Places listing and National Historic Landmark designation.