Why an energy certificate is required for real estate transactions
In Spain, a valid energy certificate is mandatory when selling or renting out an apartment. This document shows how much energy the property consumes and how environmentally friendly it is. For both owners and tenants, it’s more than a formality: the energy efficiency rating directly affects utility costs and the property’s market value.
How to find out the energy efficiency rating of your apartment
Since 2022, Spain has a dedicated government portal where you can check the energy certificate of any residential property. To get an official certificate, a specialist must visit the property, carry out an inspection, and make all necessary calculations. You can’t determine the rating yourself β only a licensed expertβs assessment is legally valid. The service can be arranged through specialized platforms that handle the technicianβs visit and all paperwork.
How the energy efficiency level is calculated
The assessment is based on the analysis of the apartmentβs annual energy consumption under standard operating conditions. The calculation includes the performance of heating, hot water, ventilation, and lighting systems. The final results are expressed in two main parameters: the volume of carbon dioxide emissions and the amount of non-renewable energy used by the residence per year. Based on this data, the property is assigned a specific letter on the energy efficiency scale β from the highest to the lowest.
Factors Influencing the Final Assessment
Several characteristics influence the outcome of the energy audit. The first to be considered is the climate zone where the building is located: in colder regions, heating costs are higher, which impacts the final assessment. The apartmentβs size and layout are also important β even with identical materials and equipment, differently sized and configured homes may receive different ratings. The quality of insulation is crucial as well: walls, windows, doors, and the presence of thermal bridges are all assessed. For transparent structures, the type of glazing and frame materials are analyzed.
Procedure and Timeline for Obtaining the Certificate
To obtain an energy certificate, the owner simply needs to submit an application to one of the accredited companies. A specialist will then contact them to arrange a convenient time for the inspection. The visit usually takes no more than an hour, and the finalized document is sent within two working days. The certificate is valid for several years and is required for every real estate transaction. Having it ensures transparency for future residents and helps reduce apartment maintenance costs.
