The purpose of this study is to analyze the characteristics of court type in Urban Detached Houses. This study deals with single-unit Korean houses designed by architects, which are included in architectural periodicals and books published since 1980. The results of this study, the types of houses court plan are obtained from the mass of site and plans shape. There are five types which are Backyard type, Corridor type, Atrium type, Inner garden type, and Dae-chyung-ma-roo type. And 9 plans of Dae-chyung-ma-roo type house are shown in this paper. Especially, Dae-chyung-ma-roo type is outdoor space with over 2 door of the room and that is extended indoor space.