Seller Seeks Annulment of Property Sale Due to Alleged Buyer Fraudulent Misrepresentation of Value

A plaintiff, having sold an immovable property by a private instrument and subsequently discovering a fraudulent misrepresentation by the buyer concerning the property's true value, sought the annulment of the sale, claiming the misrepresentation amounted to fraud. The court of appeal upheld the initial judgment dismissing the claim, reasoning that the mere disparity in valuation, even if indicative of a mistake, did not constitute the fraudulent concealment or active deception necessary to prove the element of *dol* (fraud) required for the annulment of a contract under the relevant civil code provisions, as the seller had the opportunity and duty to ascertain the property's worth independently.