<p>Infill walls that are considered for the design phase of RC buildings completely change damage mechanisms. In such cases, field studies conducted after destructive earthquakes show that the damage is advanced, especially in structures without infilling walls on the ground floors. The same situation was observed in destructive earthquakes such as the 2023 Kahramanmaras earthquake. The main goal of this study is to examine the effect of the infill wall situation on the behavior of structures in earthquakes and to examine how the near-fault effect will change the damage levels of structures with and without infill walls. In this context, the effect of the infill wall situation was examined by utilizing the Kahramanmaras earthquake data. As a result of the study, it was observed that designs with infill wall building models gave better results compared to the other models. The near fault effect was observed to be more dominant in building models without infill walls and with open stories. In conclusion, the infill walls was positively affected with regard to the near fault effect and the features of the building, such as period values, ground story behavior, story shear forces, column moment values, inter-story drift ratio, and base shear forces on ground floors, and increased base shear force.</p>