This is a project to consolidate the office spaces that had been dispersed throughout the site in conjunction with the development of the research institute base. By taking advantage of the characteristics of the site, the project aimed to create a building that is both comfortable for researchers and environmentally friendly. The site is located in front of a pedestrian bridge that connects a district divided by a national arterial road and is adjacent to a dense privately-owned forest. The office area is directly accessible from the pedestrian bridge via a rooftop garden named "Green Roof", creating a space that encourages taking a break and working in an outdoor environment while maintaining the surrounding green sceneries and reducing a sense of oppression to the surrounding area. Furthermore, the building takes advantage of its natural surroundings by providing electric louvers that control both sunlight and views, and an air conditioning system that uses natural energy. These efforts eventually resulted in receiving the highest score in Japan for CASBEE-Wellness Office Certificate.