1 article
No co-owner may make changes (excluding those that do not involve extreme changes to the shape or function; the same applies in the following paragraph) to the property in co-ownership without the consent of the other co-owners.
各共有者は、他の共有者の同意を得なければ、共有物に変更（その形状又は効用の著しい変更を伴わないものを除く。次項において同じ。）を加えることができない。
If a co-owner is unable to ascertain the identity of another co-owner or their whereabouts, the court may, at the request of the co-owner, render a judicial decision to the effect that changes may be made to the property in co-ownership with the consent of the co-owners other than the other co-owner in question.
共有者が他の共有者を知ることができず、又はその所在を知ることができないときは、裁判所は、共有者の請求により、当該他の共有者以外の他の共有者の同意を得て共有物に変更を加えることができる旨の裁判をすることができる。
This names a provision as it read when this amending Act was made. It may have been amended since, so today's text can say something else. That is why it is not a link.This names a law that is not in this collection, so there is nothing here to open.We could not tell which provision this names, so it is not a link.