High rise structures frequently use the outrigger-belt truss arrangement to withstand lateral stresses, especially seismic loads. This study examines how various belt truss and outrigger layouts affect tall structures’ seismic performance. In order to determine the best location for additional outriggers, the study primarily considers two parameters: the bending moment at the base of the core wall and the decrease in inelastic drift. According to simulation studies, the addition of outrigger-belt truss systems improves lateral stiffness and modifies the internal force distribution considerably. With one outrigger and belt truss, the highest reduction in inelastic drift is 14.03%; with two sets, it is 22.13%; and with three sets, it is 24.92%. But as more systems are added, the pace of improvement slows. The outrigger's placement toward the bottom of the building results in the lowest base bending moment, illustrating the structural advantages of low-level placement. These findings emphasize the significance of strategic positioning in enhancing seismic performance by showing that outrigger effectiveness is dependent on both quantity and vertical position.