You can investigate property details by obtaining the certificate of registration for the property at the Legal Affairs Bureau.
The certificate can be issued quickly, about 10-20 minutes after submission of the application form, and the fee is ¥600.
The certificate is issued only in Japanese, unfortunately not in English.
The certificate of the registration (Registration History) includes details of the owner, mortgage and leasehold rights. The certificate of the registration (Registration History) describes previous transactions, such as the past owner, who conveyed the property to the present owner, the reason for the conveyance, such as purchase-and-sale, donation or inheritance.
For more information
Shihoshoshi Lawyer Akiko HORI