1. REGULATION of the EUROPEAN PARLIAMENT and of the COUNCIL Establishing the Framework for Achieving Climate Neutrality and Amending Regulation (EU) 2018/1999 (European Climate Law),2020
2. European Commission, Climate strategies & targets, (n.d.). https://ec.europa.eu/clima/policies/strategies (accessed April 3, 2019).
3. 662 Final. A Renovation Wave for Europe,2020
4. Royal Decree 732/2019, of 20 December, Amending the Technical Building Code, Approved by Royal Decree 314/2006, of 17 March,2019
5. Energy-efficiency measures for heritage buildings: a literature review;Lidelöw;Sustain. Cities Soc.,2019