A foundation system plays a crucial role in ensuring structural stability, especially in challenging soil conditions like cohesive soils. In a conventional piled raft foundation, when piles are structurally connected to the raft, high axial stresses can develop in a few piles, often leading to their full mobilization of geotechnical capacity. To mitigate stress concentration at the pile heads, an alternative approach involves disconnecting the raft from the piles and introducing a cushion layer between them. This study presents a comprehensive numerical analysis of an unconnected piled raft foundation (UCPRF) system, focusing on optimizing foundation performance in cohesive soils. The proposed system integrates the benefits of both pile and raft foundations while incorporating a cushion layer to enhance load-bearing capacity and minimize settlement. The performance of UCPRF is evaluated using finite element analysis software, PLAXIS 3D. The parametric analysis investigates key geometric factors, including pile arrangement, length, spacing, raft thickness, and cushion thickness. By systematically varying these parameters, the study aims to determine the optimal configuration that minimizes settlement while maintaining structural stability and cost efficiency.