In order to impose an easement on an undivided tenement, or piece of land, the consent of all the co-owners shall be required.
The consent given by some only, must be held in abeyance until the last one of all the co-owners shall have expressed his conformity.
But the consent given by one of the co-owners separately from the others shall bind the grantor and his successors not to prevent the exercise of the right granted. (597a)