The present research deals with the investigation of the parameters that affect bioclimatic design in residential buildings, through the current energy regulation of Greece (KENAK).

First, it is analyzed which energy saving strategies comes from bioclimatic design. These strategies are divided to two main categories, the “natural” ways of energy saving and the ways of using electromechanical systems. After, it is referred to the building sector and its relationship with the energy balance in Europe and in Greece. Specifically, it is analyzed the connection between the households sector and energy balance and the effect of residential buildings, in Europe and in Greece, to it. Also, it is demonstrated hazard residential energy factors and recorded the prevailing energy management policies. Still, there is a presentation of some residential bioclimatic examples from Europe and from Greece.

Then, it is mentioned the regulation of energy and efficiency in buildings of Greece (KENAK). Initially, it is recognized the institutional framework of which began and the stages that it went through. Furthermore, it is analyzed the purpose, the calculation methodology of energy efficiency and the energy classification of a building that KENAK brings.

Moving to the end, there are the comparisons that are made to understand the effect of bioclimatic design according to KENAK. The comparisons are made with the use of an experimental residence, the characteristics of which are analyzed thoroughly. Also, there is mentioned the software that is used to perform the comparisons.

Finally, there are the conclusions of the research and the literature citations.