The idea of this undergraduate thesis was to evaluate the possibility of using light wood panel construction or light building assemblies to meet the prescribed requirements for achieving nZEB standards and high-quality living comfort. In addition to the prescribed nZEB requirements that are mostly related to the thermal transmittance (U) of an individual material or building assembly, the value of which should be as low as possible, it is also desirable to perform construction with materials with the highest possible value of sound insulation power (Rw) and with the best possible fire resistance to enable safe, comfortable and quality housing. For this purpose, an overview of the technical characteristics of insulation and construction materials and combinations of these materials was made to establish which materials or combinations of materials are the most favourable for the realization of nZEB. In addition to this, the technical characteristics of building joinery were analyzed, as well as the correct procedure of their installation on the example of windows to ensure the airtightness of the external building envelopes. By analyzing the technical requirements for buildings and comparing them with the technical characteristics of insulating materials, doors, windows and building assemblies, it was determined that the manufacturers meet the prescribed norms and with that, the requirements for achieving nZEB. In addition to meeting the prescribed requirements, all elements must be installed properly. Potential investors need to be aware of the benefits offered by building with lightweight building assemblies. All the advantages of nZEB are achieved only by a coordinated comprehensive approach of all the fields involved in building design, from the concept and conceptual design all the way to professional and carefully controlled performances, i.e. construction. I hope this thesis contributes to raising awareness on the quality of buildings (nZEB) built with lightweight building assemblies and that they will soon be the main "ingredient" in most newly built buildings.