Background: I am in the process of buying a house in South Africa, with the transfer going to be completed in a month or two's time. There is a large fig tree close to the wall on (soon-to-be) my side of the property, which is more than 100 years old as far as I've heard, and so predates the building of both mine and my neighbour's house by a few decades (my neighbour's house was built less than 10 years ago). About a year ago a crack appeared in the kitchen floor of my neighbour's house which she alleges is due to the root system of this tree and she wants the tree to be cut down; as far as I know there isn't any solid proof. The way I currently see it, even if the damage to the floor is caused by the tree's root system, the builders of the house should have taken the roots into account when building the house.
If it is proven by a third party expert that the damage to my neighbour's floor is due to the roots of the tree on my side, can I be held liable?