The legal term nec precario (from Latin, "without precariousness") designates one of the essential requirements for the characterization of fair possession and, consequently, of ad usucapionem possession in Civil Law. Inserted within the scope of Property Law, this institute aims to ensure that the exercise of factual power over an object does not stem from an abuse of trust or improper retention after the end of a temporary concession, thereby guaranteeing the stability of legal relations and the protection of property.
1. Definition, Concept, and Legal Nature
The expression nec precario refers to the absence of precariousness in possession. In the national legal system, possession is classified as fair or unfair. According to the exegesis of Article 1,200 of the 2002 Civil Code, fair possession is that which is not violent, clandestine, or precarious. Therefore, the nec precario attribute is the negative element that removes the vice of precariousness.
The legal nature of precariousness is that of a relative vice of possession. It occurs at the moment the possessor, having received the object with the obligation to return it (whether through a loan for use, lease, deposit, or mere permission), refuses to return it to the legitimate owner or indirect possessor when requested or at the end of the stipulated term. Unlike the vices of violence (vi) and clandestinity (clam), which can be validated after a year and a day (making the possession "old"), precariousness is considered by classical doctrine as an incurable vice for the purposes of usucapio, unless there is an interversion of the possessory title.
2. Historical Origin and Evolution in Law
The concept dates back to Roman Law, specifically to the institute of precarium. Originally, the precarium was a gracious concession, revocable at any time, by which the owner allowed another to use the land. The beneficiary (precario accipiens) did not have possessory protection against the grantor (precario dans).
In the evolution toward Common Law and modern codifications, the triad nec vi, nec clam, nec precario became established as the standard for possession capable of generating ownership through acquisitive prescription. In Brazilian Law, the 1916 Civil Code already contained this structure, which was maintained and refined by the 2002 Civil Code. Contemporary evolution, however, has begun to consider the social function of property, allowing, in highly exceptional situations, for the nature of possession to be altered if the possessor demonstrates an ostensive and unequivocal change in their behavior, starting to act with animus domini.
3. Exact Legal Provision
The legal foundation of the nec precario principle is distributed across key provisions of the Brazilian Civil Code (Law No. 10,406/2002):
- Art. 1,200: Defines fair possession by exclusion: "Possession is fair if it is not violent, clandestine, or precarious."
- Art. 1,203: Establishes the presumption of continuity of the character of possession: "Unless proven otherwise, it is understood that possession maintains the same character with which it was acquired."
- Art. 1,208: Deals with detention and precariousness due to tolerance: "Acts of mere permission or tolerance do not induce possession, nor do violent or clandestine acts authorize its acquisition, until after the violence or clandestinity has ceased."
- Art. 1,240 and 1,238: When dealing with Usucapio, they tacitly require nec precario possession by demanding that possession be uninterrupted and without opposition.
4. Practical Application and Jurisprudential Understanding
The jurisprudence of the higher courts, notably the Superior Court of Justice (STJ), is unanimous in stating that precarious possession does not generate usucapio. The consolidated understanding is that acts of mere permission or tolerance do not constitute ad usucapionem possession, as they lack animus domini.
However, a topic of great practical relevance is the Interversion of Possession (Interversio Possessionis). The STJ, in the judgment of REsp 1,559,348/DF, reaffirmed that it is possible to convert detention or precarious possession into full possession capable of usucapio, provided there is a factual and legal alteration in the title. This occurs when the precarious possessor manifests, through external and unequivocal acts, opposition to the owner's right, starting to behave as the owner and bearing the burdens of the object (e.g., payment of taxes, structural improvements).
Within the scope of the Superior Labor Court (TST), the discussion frequently arises in cases of housing provided by the employer. Jurisprudence holds that the former employee's continued stay in the property after contract termination constitutes precarious possession, authorizing immediate repossession by the employer.
5. Related Principles and Doctrinal Currents
The nec precario principle dialogues directly with other institutes:
- Principle of Continuity of the Character of Possession: It is presumed that possession maintains the original vice, with the burden of proof falling on the possessor to show that the precariousness has ceased.
- Objective Good Faith: Precariousness is the antithesis of good faith, as it involves the breach of a duty to return.
- Ihering's Objective Theory: Adopted mostly in Brazil, it focuses on the externalization of ownership. For Ihering, whoever holds the object in the name of another (precariousness) does not possess it, but merely detains it.
There is doctrinal disagreement regarding the "validation" of precarious possession. The classical school states that precariousness never ceases (semper precária). The modern school, aligned with Enunciado 237 of the III Civil Law Journey, admits the transformation of precarious possession into fair possession from the moment the possessor performs acts denying the owner's right, thereby beginning the acquisitive prescription period.
6. Contemporary Relevance and Practical Impacts
The analysis of nec precario is vital in Repossession actions and in Urban and Rural Usucapio proceedings. In a scenario of housing deficit and agrarian conflicts, distinguishing mere tolerance (which does not generate rights) from autonomous possession is crucial for legal certainty.
Contemporary relevance is also manifested in Real Estate Law, especially in lease and loan-for-use contracts. Extrajudicial notification for vacation is the practical instrument that puts the possessor in default, transforming possession that was fair (by contract) into precarious possession, authorizing the use of appropriate possessory measures.
Legal and Jurisprudential References
- BRAZIL. Law No. 10,406, of January 10, 2002. Civil Code.
- BRAZIL. Superior Court of Justice. Special Appeal No. 1,559,348/DF. Rapporteur: Minister Ricardo Villas Bôas Cueva. Third Panel. Judged on 05/19/2016.
- BRAZIL. Federal Justice Council. Enunciado No. 237 of the III Civil Law Journey: "It is possible to modify the title of possession - interversio possessionis - in the event that the hitherto holder demonstrates an external and unequivocal act of opposition to the former possessor, demonstrating exclusivity in the exercise of powers inherent to ownership."
- FARIAS, Cristiano Chaves de; ROSENVALD, Nelson. Civil Law Course: Property Rights. Salvador: JusPodivm, 2023.
- TARTUCE, Flávio. Civil Law: Law of Things. Rio de Janeiro: Forense, 2023.
