Sale of Land Validity After Subsequent Building Permit Modification

A property owner, having contracted to sell a plot of land with a construction permit to a purchaser who subsequently received authorization to build a different structure on that land, later sued to void the sale, arguing that the purchaser's subsequent permit constituted a substantial modification of the initial agreed-upon project, thereby negating the essential cause of their contract. The court rejected the appeal, reasoning that the right to build under the original permit was inextricably linked to the property sold, and the subsequent administrative authorization, while relating to the use of the property, did not alter the fundamental object of the sale, which remained the transfer of the specific plot of land itself.