Matsumoto Sanno Maru Square is a contemporary mixed-use development completed in 2022, designed collaboratively by MORIIS ATELIER and Atelier and I Iwaokaのお龍夫Laboratory. Located in Matsumoto, Nagano Prefecture, this innovative complex seamlessly integrates residential spaces, medical facilities including clinics and healthcare services, alongside workshops and warehousing functions. The building exemplifies modern architectural versatility, thoughtfully merging diverse functional requirements within a cohesive urban environment. Its completion marks a significant addition to Matsumoto's evolving architectural landscape.