Actions to improve energy efficiency on the example of selected historic buildings in Poland in the context of European Union guidelines

The article presents, in the context of the guidelines of the "Long-Term Strategy for Renovation of Buildings" valid until 2050, examples of renovations of historic buildings carried out in Poland in 2018-2021, which serve as public facilities. They were designed and constructed in a manner consistent with the guidelines for the transformation of a climate-neutral economy, which stem from Article 2a of Directive 2010/31/EU of the European Parliament and of the Council of May 19, 2010. The purpose of the article is a comparative analysis of selected Polish examples of revaluation of public buildings from the point of view of the Architecture of these objects. These are: the Wagner Villa in Kostrzyn on Oder, the railway station in Białystok, the Teodor Sixt Villa in Bielsko-Biała, the office building of the Forestry Commission in Elbląg, the building of the Savings Bank in Ropczyce and the former granary in Żukowo. Also cited are the current financial tools available and the basic measures needed to ensure high energy efficiency and low-carbon performance of public buildings in the run up to 2050.