The objectives of this study are to identify life style of X-generations in seoul, and to examine housing preference of X-generations. Data was collected through self-administered questionnaires for this study and the cases of four hundred and sixty one were analyzed. The major findings are as follows:There were four major types of X-generations want to reside in 102-135㎡ (30-40pyung) housing size. They want the specific space for leisure, working, interest, computer, sports, dressing, etc. They prefer L-DK type, kitchen furniture of a island shaped work center. X-generations consider facilities of apartment very important. They want to have automatic and high quality facilities. Housing preference differed significantly according to the socio-demographic variables and the types of life style of X-generations.