The Royal
Decree 235/2013 had established the obligation from the 1st of June
2013 for new constructed buildings, buildings or part of existing buildings
that are rented out to a new tenant or are being sold, buildings or part of
them in which a public authority occupies a useful surface or more than 250
square meters...to obtain an Energy Efficiency Certificate. This is a
requirement if the property is going to be sold or rented.
In this Energy
Efficiency Certificate there should be included technical, energy efficiency
information and the minimum requirements regarding the energy efficiency in
order to compare the property to acquire or to rent with other others similar
based on a qualification and evaluation of the technical details.