The project involved relocating and integrating the dispersed affiliated companies to the head office function at the former site of the Kosei Nenkin Kaikan (employees' pension hall) along Yasukuni Street in Shinjuku 5-Chome, adjacent to the existing data center.
The exterior curtain wall is composed of alternating glass walls and slit walls. The jet-black façade of finely segmented glass showing different shades reflects the city like a camera and gives presence to the new head office on Yasukuni Street. The double-glazing glass is made of heat-absorbing glass (outside) and Low-e glass (inside) to reduce the heat gain rate significantly, and the slit walls incorporate a mechanism to supply air to the interior through the panel joints. The chemically strengthened glass provides strength and precision to the curved corners, bringing continuity to the southeast facade and an overall architectural affinity.