This paper examines nine company's residential areas of Oji Paper Co. Ltd. in KARAFUTO (present southern Sakhalin). About each area, it carried out under explanation with the viewpoint of development circumstances, site planning, housing, and welfare buildings. Those company's residential areas are classified as an urbanized type and a remote district type. However it had same components and construction in domestics, because both had the purpose of recruiting employees in KARAFUTO where was developed on large scale after 1905. It had gradually changed into intentional site planning and improved habitability, especially in Showa era. As measureres against fire prevention of dwellings, massive firewalls and R.C. apartment houses were constructed. Housings and welfare buildings provided city-amenities for employees in KARAFUTO.