The Energy Performance Certificate (APE) informs a prospective buyer about a building’s energy rating, estimated consumption and suggested improvements. It helps them assess not only the property’s value but also expected heating, cooling and energy-management costs.
The obligation arises from Legislative Decree 192/2005, implementing European rules on building energy performance. Article 6 requires sellers in transfers for consideration to make a valid APE available to the buyer and deliver it when the sale deed is signed.
A qualified, independent technician must prepare the certificate. Its maximum validity is ten years, provided the statutory heating-system maintenance obligations are met. Works altering energy performance, such as a new boiler, external insulation or replacement windows, require an update.
The absence of an APE does not make the sale void. However, a seller failing to deliver it may face the administrative penalties in Article 15 of Legislative Decree 192/2005. Non-delivery can also cause disputes and delay negotiations, particularly if the purchaser later discovers poorer energy performance than expected.