Each person may compel his neighbour, in towns and suburbs, to contribute to the construction and repair of the fence separating their houses, courtyards and gardens in the said towns and suburbs: the height of the fence shall be fixed in accordance with particular regulations or constant and recognised custom and, in the absence of custom and regulations, any dividing wall between neighbours, which is built or re-established in the future, must be at least thirty-two decimetres high, including the coping, in towns of fifty thousand souls and above, and twenty-six decimetres in others.