This study aims to discover the user satisfaction concerning curved areas in the main living rooms of apartment housing. For this purpose, a total of three apartment buildings that have differently scaled and differently located curvilinear forms in the main living room and that are occupied by upper-middle socioeconomic status dwellers from three suburban sites in Ankara, Turkey, which were previously threatened with squatter housing, have been studied. The use of the space, the users' perception of the curved form, and the way it has been decorated and used have been examined with the help of a detailed questionnaire. The aim of the study is to question the functionality of such curved areas, which differed in scale and location. It is assumed that problems would occur related to the size of the curved areas. According to the results, most of the users believed that the curved area was aesthetically pleasing. On the other hand, complaints also varied depending on the size and usage patterns of the curved area. Compared to female respondents, male respondents found the three different types of curved areas more favorable. Additionally, older respondents gave less favorable ratings than younger respondents.