Abstract
The purpose of this study is to analyze the cost efficiency of design elements for an zero energy apartment building, which is the most common type of residential building in Korea. First, the baseline model was set up, based on the actual apartment complex. Design elements and their alternatives were established, based on the zero energy house study. After calculating energy consumption, energy cost, and construction cost of every alternative, three cost efficiency indexes of construction cost per energy saving rate, payback period, and life cycle cost were presented, and the cost efficiency of every alternative was analyzed.
