Article 447

The owner of the land who makes thereon, personally or through another, plantings, constructions or works with the materials of another, shall pay their value; and, if he acted in bad faith, he shall also be obliged to the reparation of damages. The owner of the materials shall have the right to remove them only in case he can do so without injury to the work constructed, or without the plantings, constructions or works being destroyed. However, if the landowner acted in bad faith, the owner of the materials may remove them in any event, with a right to be indemnified for damages. (360a)