In Korea, the first seismic design code was developed in 1988. Seismic performance of new buildings has improved since seismic design code was continually revised. But most existing low-rise buildings had not included any seismic design provisions. Thus, these will be very vulnerable to any small earthquake. "Seismic Evaluation and Performance Improvement Methods of Existing Buildings" published by Korea Infrastructure Safety Corporation in 2004. In 2011, this paper is reviewed and revised. The purpose is to propose seismic performance evaluation procedure with actual circumstances of Korea using KBC 2009.