The design of group piles depends on either the group or single pile capacity of piles. Inrnconventional design method of such foundations, the stiffness of the pile cap is barely taken intornaccount. Such design becomes too conservative if the pile cap is in contact with the ground.rnBecause the pile cap contributes in transferring load to the ground and distributing load over thernpiles. The design method that considers the contribution of the pile cap and interaction betweenrnthe different elements of group piles is called piled raft foundation. The concept of piled raftrnfoundation leads to economical design.rnIn this paper, analysis and parametric study of piled raft foundation has been conducted. Thernstudy is performed using powerful finite element based software, PLAXIS. A number ofrnparameters were selected from the elements of the piled raft system. According to their effect onrnthe response of piled raft system, some are taken to be constant while others are varied. Amongrnthe varied parameters, raft thickness, pile length, pile spacing and pile number were considered.rnOther possibilities were also investigated in search of an optimum placement of piles.rnThe analysis results from the PLAXIS software have shown a close prediction to that of in-siturnmeasurements and other numerical methods. From the parametric study, concentrating pilesrnaround the center for uniformly loaded rectangular piled raft foundation reduce the differentialrnsettlement.