- 2003
- International Architectural Competition for the design of the Freedom Park in Pretoria"
South Africa
- 2000
- Proposal Competition for the Kazawa Highlands Institution for the Study of Nature
Gunma Prefecture, Nominated
- 1998
- International Architectural Competition for the Museum of World Culture in Goeteborg
Sweden
- 1997
- International Architectural Competition for the Construction of Goree Memorial
Senegal
- 1995
- Minamata Memorial Design Competition
4th Prize
- 1980
- The Shinkenchiku Residential Design Competition 1980
2nd Prize