The building energy efficiency certificate is requested by the 2002/CE Directive which goes partially beyond the Spanish legal system, through the Spanish RD 47/2007, by which the basic procedure for the building energy efficiency certificate of new construction is approved.

The energy efficiency qualification is the expression of energy consumption which is considered necessary to satisfy the building energy demand in normal functioning and occupation conditions.

The Royal Decree forces to classify the new buildings with a tag which informs the buyers about the building efficiency level.

Eldu is in charge of the building’s certification, providing the following advantages:

• The energy efficiency certificate provides information about the building energy efficiency.

• In this way, a building with a more efficient qualification has a better image than the ones with lower qualification.

Additionally, the building’s label facilitates the energy consumption turning into a criterion to be taken into account when buying an apartment.