The 5 unit building was built in 1960. which is the same year as Recruit was founded, has been drastically renovated into a technologically advanced office. The ultimate goal was to create an office where the workers could work comfortably and gather with feeling safe and secure. By revealing its original bare concrete walls to maximize space and installing the newest air quality monitoring system, it allows users to ensure their comfortable space to gather. It became an illustrative example to show the effectiveness of antique buildings by integrating the newest technologies.