JA56 YEARBOOK2004 JAPANESE ARCHITECTURAL SCENE IN 2004 work Ota House Museum location Toriyamakami-cho, Ota City, Gunma architects Kazuhiro Kojima / C+A structural engnieers Oak Structural Design Office mechanical engineers   general contractor Eiger site area 490.4m2 building area 152.5m2 total floor area 219.0m2 structure reinforced concrete, partly steel frame; 3 stories pricipal use museum, private residence completion date August, 2004 next back top