The Flexsus House 22 is an experimental residential structure completed in 2000 in Seto, Aichi Prefecture, designed by architect Shueichi Matsumura. Developed as part of the House Japan Project, this innovative complex demonstrates advanced structural systems for next-generation housing. Functioning simultaneously as both a research facility and residential complex, the building showcases experimental construction methodologies and flexible spatial design principles. The project represents a significant exploration into sustainable and adaptable housing solutions, making it a notable example of early 21st-century Japanese architectural innovation and experimentation in residential development.