In a small site in central Tokyo, a building that combines training facilities and disaster prevention base functions was required. It is the most important task to improve intellectual productivity at the time of training, and aimed at the realization of a bright and comfortable training environment, as a place for lively human resource development. As the surroundings are surrounded by houses and apartments, it was essential to ensure privacy for both parties. When a window was provided on the outer periphery, it was assumed that the blind would always be closed for gaze control. Therefore, we secure a rich light garden inside and realize an open space filled with natural light and wind. As a disaster prevention base, there were severe conditions for safety. Robustness against fire spread in densely populated areas, and strong earthquake resistant safety in a country where earthquakes frequently occur are needed simultaneously. In order to clear safety, severe height restrictions and area restrictions, all floor walls and ceilings are made of a body concrete finish, and a minimal, quiet and open space has been realized.
It consisted entirely of a ring-like light garden and a three-dimensional space with a bridge with natural ventilation windows. Rather than dividing each training room into a private room, the whole is gradually connected along the light garden, and the situation of each other is seen and hidden. “A training environment that is optimal for training styles that change from 1: 1 to the number of people depending on the theme and time” and “a disaster prevention environment that does not put a ceiling and that makes use of natural energy with emphasis on safety during earthquakes” coexist . The entire space is filled with natural light, and by creating an “atmosphere” that creates a natural connection by creating a natural connection, it creates a comfortable and highly productive place for fostering human resources. The materials that form the space are quiet but still show signs of the craftsmanship of skilled craftsmen. Depending on the time change, the expression of the material changes with various angles and various lights. The texture of the material appears three-dimensionally, such as hanging finish concrete, electro-polished metal panel, plastered with metal.