In master thesis we took an example of multi-apartment concrete building and showed the design process of load-bearing structure in such building to current Eurocode standards. The construction of the building is foreseen in Ljubljana, in the area of Rožna dolina. The building consists of four floors, among which the top floor has in relation to the remaining floors smaller ground plan dimensions and thus creates a terraced floor. The building has in structural terms a wall system. Floor slabs and roof slab are planned to be solid reinforced concrete slabs. For the needs of static analysis, we prepared a calculation model of the structure with appropriate boundary conditions and given loads, where we used structural analysis program Scia Engineer. We used the results of the static analysis to present the design process of a typical floor slab. For the purpose of the seismic analysis, we modified the calculation model in such a way that it covered all the requirements for the analysis from the standard. The results of the modal analysis showed us the weak points of the initial structural design, which led to the use of additional load-bearing walls. The obtained internal forces were used for the dimensioning of two walls, where the most attention was paid to the fulfilment of the conditions for ductile walls in critical area. For all structural elements we dealt with in greater detail during the master thesis, we prepared the reinforcement plans by using the Allplan software.