1. Parliament, Council of the European Union. Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings (recast), 2010. http://data.europa.eu/eli/dir/2010/31/oj.
2. Commission Recommendation (EU) 2016/1318 of 29 July 2016 on guidelines for the promotion of nearly zero-energy buildings and best practices to ensure that, by 2020, all new buildings are nearly zero-energy buildings. Official J. 2016;46–57. http://data.europa.eu/eli/reco/2016/1318/oj.
3. Regulation of the Ministry of Infrastructure of 12 April 2002 on the technical conditions which should be met by buildings and their location, Annex to the notice. Technical conditions to be met by buildings and their location, Annex to the Announcement Minister of Development and Technology of 15 April 2022, Dz.U. 2022 item 1225. (in Polish).
4. A long-term strategy for building renovation. Supporting the renovation of the national building stock. Annex to Resolution No. 23/2022 of the Council of Ministers of 9 February 2022. https://zae.org.pl/wpcontent/uploads/2022/02/Dlugoterminowa_strategia_renowacji_budynkow_gov.pdf, (in Polish).
5. Directive (Eu) 2018/844 of the European Parliament and of the Council of 30 May 2018 amending Directive 2010/31/EU on the energy performance of buildings and Directive 2012/27/EU on energy efficiency, 2018. http://data.europa.eu/eli/dir/2018/844/oj.