1. WHAT IS IT? It is a certificate delivered by a competent technician/expert which finalises on an energy qualification. This requirement is the coloured label which appears in all the electrical appliances you have been buying since long ago; for your property a G is the worst qualification, an A being the best. A middle-low position in the table is the most frequent.
2. WHICH PROPERTIES DO COMPULSORILY I NEED IT TO? To any properties you are about to put for sale or rent: that includes either complete buildings or parts of them (as a floor) and also to use it as dwellings, offices, retails, etc.
3. ¿SINCE WHEN IS IT COMPULSORY? Since 1st June, 2013. From that date onwards anyone who wills to sell or rent an office, establishment or apartment ought to declare it with the corresponding label. If this is not done there is the risk of receiving a State sanction and having your sale contract annulated by your tenant/customer.
4. CAN I WAIT TO SELL OR RENT THE PROPERTY? According to the law, you cannot. The property advertisement/announcement has to go with the pertinent label.