La. Civ. Code art. 459
Current with operative changes from the 2024 Third Special Legislative Session
A building that merely encroaches on a public way without preventing its use, and which cannot be removed without causing substantial damage to its owner, shall be permitted to remain. If it is demolished from any cause, the owner shall be bound to restore to the public the part of the way upon which the building stood.
La. C.C. § 459