The buyer must give the seller a notice of defects, i.e. a complaint, when the defect is discovered. If the buyer fails to do so, he/she loses the right to claim the defect. The obligation to give notice of defects applies to all types of defects.
In the notice of defects, the buyer must inform the seller about the defects present in the property and outline the demands the buyer has due to these defects. the notice of defect must be given within a reasonable time after the defect and its significance have been discovered. In the case of a defect in quality, however, it must be submitted no later than five years after the real estate transaction.