The project was defined by a number of limitations that included the datum of 200 m that limits height in Tokyo due to earthquakes, the squat proportions that result, and the original 1920s Post building that had to be integrated into the design. In approaching these limitations, the design was guided by the site’s orientation with a folded façade, reminiscent to origami structures and oriented to the Imperial Palace and high-performance multi-layered facades on the east and west side of the building. At the same time, as the building approaches the top, it begins to dematerialize in order to challenge the squatness of the building and create a sense of identity within the urban fabric. IMAGES BY RAINER VIERTLBOECK
JAPAN POST HOLDINGS. REAL STATE DIVISION.
HELMUT JAHN, FRANCISCO GONZALEZ PULIDO, WERNER SOBEK.