This tenant office building is located on Nihombashi Chuo-dori Avenue. Capacity and height restrictions were relaxed for this redevelopment project, and the building holds eating and drinking establishments on the below ground floors, financial and securities-related offices on the lower floors, and the head office of a major cosmetics company on the higher floors. The standard floor, with 20.9-meter large-span columnless space and single-side core plan, provides high flexibility, and interior comfort has further been increased with sunshine flowing in even from the core side. Natural ventilation is carried out in the stairways and light well voids, and automatic fresh air intake ducts have been installed in the exterior facing. By separating the core from the exterior facing, an opening has been made around the entire building, and by using sashless PC horizontal continuous windows, a façde has been realized where the glass curtain walls transform into horizontal continuous windows. A new cityscape has been created while preserving the memories of this area by using black natural stone for the low sections.