1. Directive 2010/31 of the European Parliament and of the Council of 17 May 2010 on the energy performance of buildings and its amendments (the recast Directive entered into force in July 2010, but the repeal of the current Directive will only take place on 1/02/2012).
2. Building Design and Construction: Forging Resource Efficiency and Sustainable Development;UNEP,,2012
3. Energy Efficiency, Buildings [online];EUROPEAN COMMISSION,2015
4. Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings.
5. Europe‟s Buildings Under the Microscope- A country-by-country Review of the Energy Performance of Buildings, BPIE;Buildings Performance Institute Europe (BPIE),2011