From next year, office buildings larger than 100 m2 will have to be rated C or higher. The level of energy consumption will have to be 225 kWh per square meter per year.
If an office building is grade D or lower, then the owner risks a fine of up to 81 euros or will have to close the premises.
Read about the algorithm of actions for obtaining class C energy efficiency and how to improve thermal insulation (and how much it costs), read in our article.
