Sumiyoshi Clinic 1981 is a distinctive residential and medical facility completed in 1983, located in Kawasaki, Kanagawa Prefecture. Designed by architect Masaru Tominaga in collaboration with Form System Laboratory, this structure exemplifies a thoughtful integration of living and professional spaces. The building represents an important exploration of functional design principles applied to mixed-use architecture. Its completion marked a significant contribution to the Japanese architectural landscape of the early 1980s, demonstrating innovative approaches to combining residential comfort with clinic operations. The project showcases the designers' commitment to creating purposeful, efficient spaces that serve both personal and community healthcare needs.