The Ooki Daikichi Honten is a contemporary adaptive reuse project completed in 2015, located in Yabuki Town, Fukushima Prefecture. Originally a historic sake brewery facility, this structure represents a thoughtful integration of traditional Japanese manufacturing heritage with modern functional design. The building serves as a factory, workshop, and warehouse, carefully reimagined by the Ooki Daikichi Honten Project Team to preserve its architectural character while meeting contemporary operational needs. This project exemplifies sustainable design principles through the conservation and repurposing of historic industrial architecture, demonstrating how vernacular structures can be revitalized for ongoing economic and cultural relevance in rural communities.