This graduate thesis addresses the calculation of a reinforced concrete residential building under seismic forces, with a focus on the development of a numerical model using the ETABS software and the analysis of the obtained results. To clarify all assumptions, parameters, and analytical procedures used, a theoretical review of the fundamental principles of dynamic response analysis of structures is first conducted. The theoretical and methodological foundations of this review are based on the formulation of a multi-degree-offreedom system, where the equations of motion are defined along with the corresponding mass, damping, and stiffness matrices. Further analysis includes the formulation of modal analysis and response spectrum analysis. The interpretation of applicable codes defines the behavior factor and the criteria for structural adequacy in plan and elevation. Finally, the development of the numerical model of the reinforced concrete residential building is demonstrated, utilizing the previously explained methods and knowledge acquired throughout the course of the studies. In the context of the analysis of the obtained results, a concurrent review of the conditions defined by the regulations is also performed.