Article 46-3Authority of the Administrator of an Exclusively-Owned Area with an Unknown Owner
第四十六条の三（所有者不明専有部分管理人の権限）
If an administrator of an exclusively-owned area with an unknown owner has been appointed pursuant to the provisions of paragraph (4) of the preceding Article, the right to manage and dispose of the exclusively-owned area or share of co-ownership covered by the order for management of an exclusively-owned area with an unknown owner, the movables on which the order for management of an exclusively-owned area with an unknown owner has effect, rights related to the common areas and the attached facilities, the right to use the grounds, and the property obtained by the administrator of an exclusively-owned area with an unknown owner through the management or disposition of, or any other cause relating to, these (hereinafter referred to as the "exclusively-owned area, etc. with an unknown owner") is vested exclusively in the administrator of an exclusively-owned area with an unknown owner.
前条第四項の規定により所有者不明専有部分管理人が選任された場合には、所有者不明専有部分管理命令の対象とされた専有部分又は共有持分並びに所有者不明専有部分管理命令の効力が及ぶ動産並びに共用部分及び附属施設に関する権利並びに敷地利用権並びにこれらの管理、処分その他の事由により所有者不明専有部分管理人が得た財産（以下「所有者不明専有部分等」という。）の管理及び処分をする権利は、所有者不明専有部分管理人に専属する。
In order to perform an act exceeding the scope of the following acts, the administrator of an exclusively-owned area with an unknown owner must obtain the permission of the court; provided, however, that the lack of this permission may not be asserted against a third party acting in good faith:
所有者不明専有部分管理人が次に掲げる行為の範囲を超える行為をするには、裁判所の許可を得なければならない。ただし、この許可がないことをもつて善意の第三者に対抗することはできない。
an act of preservation; and
保存行為
an act for the purpose of using or improving the exclusively-owned area, etc. with an unknown owner, to the extent that it does not change its nature.
所有者不明専有部分等の性質を変えない範囲内において、その利用又は改良を目的とする行為