JA56 YEARBOOK2004 JAPANESE ARCHITECTURAL SCENE IN 2004 work Takenaka Corporation Tokyo Main Office location Koto-ku, Tokyo architects Takenaka Corporation structural engnieers Takenaka Corporation mechanical engineers Takenaka Corporation general contractor Takenaka Corporation site area 23,383.15m2 building area 5,9,4.53m2 total floor area 29,747.96m2 structure steel frame; 7 stories and 1 penthouse pricipal use office completion date September, 2004 next back top