2018 is the last year of implementation of the first Green Building Master Plan(2014 ~ 2018). The outcome of the first master plan will be the basis for the second Green Building Master Plan, which will be implemented from 2019 to 2023. Therefore, first of all, it is necessary to evaluate the performance of the first Green Building Master Plan in order to check the future policy direction. There are three objectives of this study. The first objective is to investigate and analyze the achievements of the policy tasks of the first Green Building Master Plan. The second objective is to examine the possibility of greenhouse gas reduction goals in 2020 and 2030. The third objective is to suggest the direction of the second Green Building Master Plan considering the changes in socioeconomic conditions.