If you are staying in Japan for a year or more you may want to rent.
Unfortunately, foreigners in Japan have a reputation for leaving houses and apartments in bad condition and for leaving with unpaid bills.
As a result of this it can be difficult to find somewhere to rent in Japan.
It is possible, however, but you can expect to pay at least 4 weeks rent as bond (refundable if you look after the place) and a further approximately 4 weeks rent as "key money" (non-refundable).
They MAY also want a Japanese person to act as garantor for you.
If you have any more questions about renting in Japan you will find links to foreigner friendly real estate agents on this page or you can post questions here...