Abstract
Structural Euro-code will soon be the first area code in the world. This code will have strong influence to ISO codes which will be presented. It means the code will also have the strong influence to the codes in Japan. In JGS, Geo-code 21 has been discussed for our first national foundation code for 7 years. We believe Geo-code 21 can be comparable to EC7. In this paper, we compare EC7 and Geo-code 21 in the sight of performance design concept, aseismic design, collaboration between structural and geotechnical engineers.