The Tomioka Chamber of Commerce and Industry Building, completed in 2018, stands as a contemporary architectural achievement in Gunma Prefecture. Designed collaboratively by renowned architects Hiroshi Ohno of Ohno JAPAN and the team of Takaharu Tezuka, Yui Tezuka, and Keishi Yabe of Tezuka Architectural Research Institute, this office building reflects modern design principles while serving its community function. Located in central Tomioka, the structure demonstrates thoughtful spatial planning and contemporary aesthetics that contribute to the city's evolving architectural landscape, making it a notable example of early 21st-century Japanese institutional design.