Unions estables de parella i darrers pronunciaments del Tribunal Constitucional Authors Alejandra de Lama Aymà Abstract This paper studies the Constitutional Court judgments regarding the laws of Navarra and Madrid on unmarried couples. The Court concludes that autonomous communities without their own civil law cannot legislate on unmarried couples. Conversely, those autonomous communities that have their own civil law can do so because it does not affect the States legislative power regarding marriage forms and rules on registration. However, the Court maintains that the law of Navarra violates the States competence to establish rules on the resolution of conflicts of laws and also the right to free development of personality and, accordingly, it declares some articles of the law unconstitutional. As a result of these judgments, it is possible to declare other autonomic laws unconstitutional. The Court draws the conclusion that unmarried couples have to formally express their will to form a couple to benefit from the associated rights. Nevertheless, if formal expression of the will to be a couple is needed, the Law on Unmarried Couples does not add anything in relation to marriage because both institutions require a formal act. The usefulness of the Law on Unmarried Couples resided in the possibility of benefitting from legal rights without the need for formalities like those required for marriage. Couples who trusted that the Law on Unmarried Couples would apply to them have to adjust their situation to this new constitutional interpretation and make a formal act to become a couple or to marry. Downloads Download data is not yet available. Downloads Text complet (Català) Published 2016-03-08 Issue Vol. 15-2 : desembre 2015 Section Studies License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Revista Catalana de Dret Privat, authors accept the following terms:Authors assign to Societat Catalana d'Estudis Jurídics (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Revista Catalana de Dret Privat.Authors answer to Societat Catalana d'Estudis Jurídics for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.Societat Catalana d'Estudis Jurídics declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Revista Catalana de Dret Privat is not responsible for the ideas and opinions expressed by the authors of the published articles.