I purchased an apartment a year ago. Before my purchase, the co-owners allocated common parking spaces among themselves, but the deeds were not registered. Are these decisions enforceable against me?

Yes… but. The new allocation of parking spaces should have been formalised through an amendment to the descriptive statement of division, which must normally be registered with the Land Registry (Law No. 65-557 of 10 July 1965, Article 13).

If it was not registered, this amendment is enforceable against you if you were aware of it at the time of your purchase and agreed to comply with the resulting obligations (Article 4, paragraph 3 of Decree No. 67-223 of 17 March 1967).