Abstract
Mansion has been usually considered as owner-occupied apartment house, what is called Condominium. But nowadays, absentee owner of mansion grows larger, and mansion has become essential parts of rental housing in city. There are 3 patterns (Regional hub city, Satellite city of metropolitan area and Inner city of metropolitan area) in character of owner's absence and mobility of ownership. And scattering in broad area of absentee owners not only lead to troubles of management of mansion, but also bring up another point of view in housing policy, as a rented house for ordinary household.
