Article 73Registration Relating to Condominium Unit with Registered Right of Site
第七十三条（敷地権付き区分建物に関する登記等）
A registration of a right pertaining to ownership of or a security interest (meaning a general statutory lien, pledge or mortgage; hereinafter the same applies in this Article) in a condominium unit with a registered right of site has the effect as a registration made relating to the right of site to the land for which a registration of categorization as a right of site has been made pursuant to the provisions of Article 46;provided, however, that this does not apply to the following registrations:
a registration of a right pertaining to the ownership of or a security interest in a condominium unit with a registered right of site, which was made before the right of site for the condominium unit was registered (in the case of a registration of a right pertaining to a security interest, excluding the case in which the purpose, etc. of the relevant registration (meaning the purpose of registration, the date of receipt of the application and the receipt number, and the cause for registration and the date thereof; hereinafter the same applies in this item) is the same as the purpose, etc. of the registration of the right pertaining to the security interest made in relation to the right to land that has been categorized as the right of site);
a provisional registration pertaining to ownership of a condominium unit with a registered right of site, which was made after the right of site for the condominium unit was registered and for which the cause of registration occurred before the right of site for the condominium unit became effective;
a registration of a right pertaining to a pledge or mortgage on a condominium unit with a registered right of site, which was made after the right of site for the condominium unit was registered and for which the cause of registration occurred before the right of site for the condominium unit became effective; and
a registration of a right pertaining to ownership of or a pledge or mortgage on a condominium unit with a registered right of site, which was made after the right of site for the condominium unit was registered and when the cause of registration occurred after the right of site for the condominium unit became effective (excluding cases where the proprietary elements owned by a unit owner and the right of site pertaining to those proprietary elements may not be disposed of separately pursuant to the provisions of the main clause of Article 22, paragraph (1) of the Condominium Unit Ownership Act (including as applied mutatis mutandis pursuant to paragraph (3) of the same Article) (hereinafter referred to as the "cases where a separate disposition is prohibited" in this Article))
Neither a registration of transfer of a right of site nor a registration of a right pertaining to a security interest established on a right of site may be made in relation to the land for which a registration of categorization as a right of site has been made pursuant to the provisions of Article 46;provided, however, that this does not apply to a registration for which the cause of registration occurred after the right of site was established to the land (excluding the cases where a separate disposition is prohibited), or to a provisional registration of a right of site or registration of a right pertaining to a pledge or mortgage where the cause of registration occurred before the right of site was established over the land.
For a condominium unit with a registered right of site, neither a registration of ownership for which the cause of registration is a transfer of ownership of the condominium unit alone nor a registration of a right pertaining to a security interest established over the condominium unit alone may be made; provided, however, that this does not apply to a registration for which the cause of registration occurred after the right of site for the condominium unit became effective (excluding the cases where a separate disposition is prohibited), or to a provisional registration of ownership of the condominium unit alone or a registration of a right pertaining to a pledge or mortgage established over the condominium unit alone for which the cause of registration occurred before the right of site for the condominium unit became effective.