Nowadays investors are realizing how valuable energy really is, which consequently means that a lot of attention is given on the energy efficiency of buildings. In order to meet the European and national requirements of building energy consumption, the health, comfort of building users and ergonomic design is often neglected. In the master thesis the new administrative building of Krka d.d. Novo mesto is analysed. An analysis of the building physics and ergonomic design is carried out. The analysed topics were bioclimatic design, building physics and ergonomic design (lighting, ergonomics of the working area). Light comfort is analysed with Velux daylight Visualizer 2. The acoustic comfort in the working area of the building is analysed with URSA FRAGMAT - Akustika. With the program THERM6 possible thermal bridges in the building were checked. The energy consumption of the building was calculated with TOST.
The results showed that the project documentation of the analysed building complies with the building regulations in terms of thermal comfort, as well as in terms of energy efficiency. Although the windows of the building present a high percentage of the buildings envelope the required lighting levels in the analysed interior spaces were not achieved. The building also does not comply with some ergonomic design requirements, but these mistakes could be easily corrected with a slight change in the project documentation/drawings. A review of the possible usage of alternative sources of energy in the building was carried out. Considering the existing design of the building at the site of Novo mesto a few alternative sources of energy were suggested to the client with a few accompanied changes to the original project documentation. The proposed changes represent a combination of changes to the documentation, which results in a significant improvement in user comfort and building energy consumption.