Every property owner or lessor is obligated to provide buyers or users of buildings with an energy efficiency certificate that must include objective information about the energy efficiency of a building.
The energy efficiency certificate of the building or of a part of it shall contain, at a minimum, the following information:
a) Identification of the certified building or part thereof, including its cadastral reference.
b) Indication of the recognized procedure used to obtain the energy efficiency rating.
c) Indication of the applicable regulations on energy saving and efficiency at the time of construction.
d) Description of the energy characteristics of the building: thermal envelope, heating and lighting installations, normal operating and occupancy conditions, thermal and lighting comfort conditions, indoor air quality, and other data used to obtain the energy efficiency rating of the building.
e) Energy efficiency rating of the building expressed through an energy label.
f) For existing buildings, a document containing recommendations for improving the optimal or cost-effective levels of energy efficiency of a building or part thereof, unless there is no reasonable potential for such improvement compared to the current energy efficiency requirements.
Every property transaction must include the energy efficiency certificate.