Abstract
Regulations about rented houses in Germany is similar to Japan. Accordingly, it is important for considering the tenant protection system to examine judicial precedents in Germany. The Federal Court of Constitution affirmed that tenant protections are necessary, and legislation can determine the protection system. When a landlord has reasonable and understandable reason for his own use, he can annul the lending contract, and his distressed situation is not necessary. On the other hand, a tenant in severe conditions can raise an objection. These German system will be very helpful for the legislation in Japan.
