The relevance of the article is that the property rights of citizens and businesses are not only the basis of Ukraine's economy - they are based on family relations, they are also the material basis of local governments and state organizations, institutions and enterprises. In other words, without their proper registration and protection, it is impossible to ensure any other sphere of public life. In Ukraine, some attention is paid to the legislative definition of property rights and the problem of their state registration. And if with the first part of the outlined, in our opinion, a certain harmony is reached, then the issue of protection of property rights in today's conditions is acute. Its violations, in particular raids on enterprises and other violations of the property rights of individuals and legal entities, although decreased in number, but such facts have not remained in the past. The leading instrument of administrative legal protection of property rights is the institution of state registration of property rights, which in today's conditions is undergoing a process of further transformation and improvement in the effectiveness of protection of the rights of property rights. The artіcle reveals and descrіbes the legal nature of property rіghts and theіr state regіstratіon. Thіs іs done on the basіs of the theory of natural law, the theory of admіnіstratіve law, the theory of cіvіl law, as well as domestіc legіslatіon. Іt іs proved that the legal nature of the state regіstratіon of real rіghts to іmmovable property іs that іn іts іmplementatіon there are specіfіc admіnіstratіve and legal relatіons of a protectіve nature. It is concluded that the legal nature of state registration of property rights to property rights is that in its implementation there are classic administrative and legal protection relations, which involve applicants or their authorized persons, usually private legal entities, and public ( public) registrars as subjects of power. The content of these relations is: 1) the subjective right of the applicant to receive a kind of public protection in formal form (security document) and in essence - to use the entire public apparatus of protection and state coercion in his case in case of violation of registered property rights; 2) the administrative duty of a special subject of public administration (registrar) is a public obligation to carry out such registration. In turn, the registrar has the right to demand from the applicant provided by the current legislation confirmation of ownership of the property rights submitted for registration. Legal facts in the analyzed area of administrative and legal relations are the entry in the register of decisions on state registration, which directly lead to a change or termination of legal relations. A separate line in this area should be noted administrative-legal, administrative-procedural and economic-procedural legal relations that arise when appealing the decisions of state registrars to refuse registration (registration) of property rights to administrative or (and) judicial authorities.