This study aims to clarify the actual conditions about dwelling unit combined with other use. By forcusing on process and distribution of non-dwelling function in Tama Newtown, we clarified the following things. 1. In Tama Newtown, non-dwelling function has been inserted to dwelling unit (we call 'dwelling unit combined with other use' on this paper) because there is a flexibility in respect of space and management inside of dwelling unit. 2. Generation of non-dwelling function needs the passage of time. 3. Residents who operate non-dwelling function feel the merit and demerit. Some of them want to transfer to the outside because of the need for wider space.
