La. Civ. Code art. 2764
This is the official text of La. Civ. Code art. 2764, part of Louisiana’s Civil Code — louisiana's civil law tradition codifies persons, property, obligations, and family relations here rather than in a separate statutory code.
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Substantial and necessary alterations.
Official statutory text
An exception is made to the above provision, in a case where the alteration or increase is so great, that it can not be supposed to have been made without the knowledge of the owner, and also where the alteration or increase was necessary and has not been foreseen.
Status: in_force · Read it on the official government site
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