A contract relating to a building or a tree includes the land on which the building stands and the land into which the tree's roots extend. A contract relating to land includes the buildings and trees thereon, unless a condition or custom provides otherwise in either contract. A contract relating to a house includes the immovable fixtures therein, but not the movable items, unless the purchaser stipulates their inclusion in the contract.
Interpretation and application must be checked against the official text and current version.