In past years, the natural disaster has a serious impact over the human society which causes a loss of resilience of the structure because of the reduction in functionality and demands recovery of the structure. Therefore, it is of paramount important to determine the resilience of a structure at post-earthquake event to judge the remaining functionality. In this study, the seismic resilience of an unsymmetrical L-shaped reinforced concrete building has been evaluated. Both the bare frame and unreinforced masonry (URM) infill buildings have been considered in the study. The result shows that with URM infills, the resilience of the building goes down below 70% due to significant loss in the functionality of the building which is useful from designer point of view for strategic planning. Based on this, the possibility of recovery with optimum time and cost can be planned. © 2021, Associated Cement Companies Ltd.. All rights reserved.