Property may be transferred freely save were their transferability is limited or prohibited by law.

(1) By way of accession, the owner of a property becomes the owner of all that is added to the property or incorporated into it if the separation would destroy or substantially diminish the value or economic purpose of the property or the separated part.…

(1) Property means any things that may be individually or collectively appropriated and patrimonial rights. (2) Things are tangible objects in respect of which civil rights and obligations may exist.

(1) In the case provided by Article 660(a), the construction which formed the object of the right of superficies, as of the date of extinguishment of the superficies, becomes an essential part of the land under Article 460, belonging to the owner of the land,…

Where a superficiary failed to build the construction in the time limit specified in the juridical act for the establishment of the superficies or if it violates the obligation to preserve the construction, the owner of the land may request extinguishment of the right of…

The right of superficies is extinguished: a) upon its expiration or where the contract establishing it has been terminated; b) by way of consolidation, if the land the construction are acquired by the same person; c) by way of loss of the construction if this…

(1) Unless the juridical act provides otherwise, a superficiary owes to the owner of the land a monthly payment equal to the market rent, considering the nature of the land, its location, the purpose of the land, and any other criteria to determine the value…

(1) A superficiary may freely dispose of its right of superficies. In case of an existing construction, the superficiary may only transfer or mortgage the superficies and the construction together. (2) In case of sale of the construction by the superficiary, the owner of the…

The right of superficies is registered in the registry of immovable property under the first ranking only. The ranking may not be changed.  

The right to superficies is not terminated by the mere demolition or loss of the construction.