Is ownership not recognized without registration?

What the Law Says

Japanese law distinguishes between acquisition of ownership and the ability to enforce it against third parties. While ownership may arise from a valid transfer (e.g., sale or inheritance), full legal recognition — especially against others — depends on registration.

Under the Japanese Civil Code, ownership of immovable property (land and buildings) is not effective against third parties unless registered. This means an unregistered owner cannot prevent a later bona fide purchaser who registers first from acquiring valid title.

The requirement is strict: even if a contract of sale is fully executed and possession transferred, ownership rights remain incomplete for legal purposes until registration is completed at the Legal Affairs Bureau.

Registration serves as public notice and creates priority among competing claims. Without it, the owner bears the risk that another party may register first and prevail.

Statutory Text

Ownership and other rights in immovable property shall not be asserted against third parties unless registered.

— Civil Code, Art. 177 — Effect of Registration

What to Do

Sources