Datasets used in the two PhD theses:"Daily livings in a smart home : users' living preference modeling of smart homes" and "Smart home design : spatial preference modeling of smart homes". The data are SPSS files, which derived from a web-based experiment. 254 respondents were involved in a web-based experiment. The experiment consisted of a questionnaire and 2 main tasks, which were executed in a 3D interactive smart home by respondents: Task 1 ) daily living arrangement and Task 2) spatial layout arrangement.