They are established as an additional objective to be achieved in terms of reducing energy consumption and increasing the use of renewable energies.
The label developed in the Principality is called "OTIMU", it has three levels of requirements, or excellences.
- To guarantee the occupants that they will live in a healthy and energy-efficient place.
- To guarantee low energy bills throughout the life of the building
- To allow the building owner to add value to his building and enhance it financially and sustainably