The purpose of this study is to clarify the transition and terminology of sanitary spaces in Korean houses, based on the analysis of novels. The resets are as follows. The sanitary space huts been developed in all aspects including locations and facility levels. Duikan, Pyunso, Tongsi, Whajangsil, and Yoksil were the terminology of sanitary space that appeared often in the novels. Before 1930, the word most frequently mentioned was Duikan. Whajangsil and Yoksil appeared shortly between 1930-1750. Duikan, Pyunso, and Tongsi were presented again between 1950-1970. Whajangsil and Yoksil were substituted for most other words after 1980. Other than the usual function of sanitary space, these areas also used as hiding spaces and places where one could observe others secretly. The sanitary spaces in most novels were located behind kitchens, nearby fences or stables and were typically unpleasant places with a messy dung tub, no lighting system, and a shed-like construction.