This project involves the establishment of "TAMADIC Ichinomiya Office Robo Lab.", a new base for TAMADIC's FA/Robot Technology Division in Ichinomiya City, Aichi Prefecture. The building, formerly used as the head office of Moririn, a textile trading company that has been operating in Ichinomiya for many years, is a familiar building to the local community and has been repurposed and renovated. We aimed for a design that harmonizes the old and the new, respecting the beauty and robustness of the existing reinforced concrete (RC) structure. The main building adopts an exposed structural frame (*), and the first-floor entrance houses a robot showroom and development lab. The second and third floors are office areas, harmonizing the old and the new with a design based on the RC structure and wood base, and incorporating plants to reduce stress and improve concentration, creativity, and productivity. On the rooftop, in addition to plants, an office vegetable garden has been installed, and a rooftop terrace has been added with the image of workation (enjoying leisure while working). In addition to these facilities, an office sauna has been installed in the adjacent building, intended to refresh the mind and body and stimulate communication. We designed an office space that embodies Tamadic's new work style concept, "All for Well Engineer Life." *An interior finishing technique that leaves the structural framework supporting the building (columns, beams, concrete walls, etc.) exposed rather than concealed.