The transfer of property rights over land from one party to another can be obtained through a court decision. Based on the provisions of Law No. 5 of 1960 concerning Basic Agrarian Principles and Government Regulation No. 24 of 1997 concerning Land Registration, the sale purchase and transfer of land rights must be carried out in front of a land deed official (PPAT). Many problems arise regarding the ownership of land rights carried out under the hand, in the sense that they are not in accordance with the applicable regulation. The case can be detrimental to the buyer and even a lawsuit must be made through the court. The case in this study is a case of transfer of land rights because the loss of the certificate was later found after 25 years and the owner has a good intention to apply for a name change, but the previous owner of the certificate is unknown. This study aims to ensure legal certainty in the transfer of ownership of land that is unknown to the previous owner and explain the legal consequences of the transfer of ownership of the land after the issuance of a court decision. This study uses a normative juridical method and the method of data collection uses interviews and studies and reviews a applicable law and regulation as a basis for solving problems. Therefore, using a court decision can be the basis for rights that have permanent legal force in the transfer of land rights