Recently, the role of the architecture which is corresponding to climate change and saving energy has been important. This study drew factors about design principle, technology performance on passive house, focusing on apartment and multi-family house cases in Europe. The dwelling type of Korea and climate, however, are different from the European styles, and therefore it is necessary to develop energy efficient design, technology and details that is applicable to Korea's apartment. Under this circumstance, this study aims at providing the fundamental data for drawing design principle, technology performance, details applicable to domestic apartment and climate condition for passive house in Korea. Therefore, this case study is intended to explain three topics: strategy, energy performance, and details.