La. Civ. Code art. 682
Current with changes from the 2024 legislative session, Chs. 3, 6-495, effective on or before 7/1/2024
A co-owner may raise the height of a common wall at his expense provided the wall can support the additional weight. In such a case, he alone is responsible for the maintenance and repair of the raised part.
La. C.C. § 682