Property Sale Rescission Due to Material Mistake Regarding Quality

A lower court ordered the cancellation of a contract for the sale of property, finding that a material mistake concerning the quality of the property justified rescission, despite the buyer having visited the premises before the sale. The high court upheld this decision, reasoning that the demonstrable, essential mistake regarding a quality that was reasonably believed to exist and was determinant for the contractual commitment constituted a valid ground for nullifying the agreement, as the buyer's inspection did not negate the fundamental misunderstanding about a specific feature of the property.