Sumiyoshi Square stands as a notable commercial facility in Fukuyama, Hiroshima Prefecture, completed in 1980. Designed by Pandécon Architectural Design Institute, this building represents an important contribution to the city's commercial architecture during that era. Located at 1-40 Sumiyoshi-cho, the structure exemplifies the architectural principles and design sensibilities of the early 1980s. Its development marked a significant moment in Fukuyama's urban retail landscape, offering both functional commercial space and architectural interest to visitors and design enthusiasts alike.