While initially noted for its economic benefits, shared housing has been garnering increasing scholarly interest in Korea since the 2010s, primarily due to changes in social and cultural values and paradigms. Despite these changes, however, many researchers continue to focus on economic benefits when analyzing demand characteristics. Therefore, it is crucial to re-examine the research focus. Additionally, given the emergence of luxury and differentiated shared housing, the subjects of the research are likely to be financially stable, employed young adults. This paper surveys working young and single adults to identify the demand characteristics of “shared houses”, a popular type of shared housing in Korea. Our findings indicate that the demand characteristics vary based on diverse attributes of working young-adult single-person households. These findings have important implications for the supply of differentiated shared housing that caters to this demographic.