One of Kajima's corporate dormitories for singles was rebuilt anew. For this project, it was required to accommodate more dormitory rooms for the increased number of female employees as well as Kajima's new communal place that could flexibly be used according to different ways of working. The dormitory rooms were designed with energy conservation and wellness in mind, and for this, Kajima acquired its first ZEH certifications (Nearly ZEH/23 units, ZEH Oriented/69 units, ZEH-M Oriented/1 building). Kajima's new communal hub, KX-SQUARE, in the common area on the first floor expands the satellite office and multipurpose space functions. It has mechanisms, such as a series of folding doors to create a semi-outdoor space and lighting with a dimming function, to change the work environment depending on purpose and situation.