- Dai-ichi Sougo-Kan, in 1921
- Tokyo Headquarter Building Built in 1938
- Osaka Headquarter Building constructed by Takenaka Corporation in 1953
- Kanagawa Branch Building built in 1967
- Rebuilt Sogo-kan Building in 1971
- Odakyu Dai-ichi Life building built in 1980
- Sendai Branch Building built in 1985
- Osaka Dai-ichi Life building, built by Takenaka Corporation in 1990
- Hibiya Dai-ichi Life First Building, in 1993, constructed by Shimizu Corporation
- Umeda Building in 1995
- Umeshin Building in 2007 in Osaka
- Sogo-kan 110 Tower in 2012 in Tokyo
- Participating the project of International Mozarteum Foundation

