As our infrastructure expands, maximizing the potential use of every ground becomes crucial. Thus, when soft/difficult soil hinders the construction techniques like stone column offers a sustainable solution. Stone columns are vertical hollow spaces created by excavating and/or displacing the native soil and filling the same with coarse and well-draining aggregates. It helps in increasing the bearing strength and limits the possible settlement of virgin soil. For even greater performance geosynthetics can be introduced as a confining layer around the stone columns to enhance the integrity and help the load transfer to deeper soils with more efficiency. This study reports an extended case study and performance of stone columns under a 16 m diameter water tank constructed over soft soil. The tank foundation was designed with a sand pad, along with stone columns, that acts as the base for the hefty water tank installed in the field. The study has further extended with different parametric variations and investigations for academic purposes. The parametric alterations included the intermediate spacing between the columns (ranging between 8 m c/c to a much denser 1.6 m c/c), diameter of the columns (ranging from 0.5 m to 1m), and observation for both ordinary and encased conditions. In this study, the Plaxis3D was used for getting the rigorous and systematic parametric influence. The responses have depicted a clear picture of the performance: for wider spacing stone columns with a smaller diameter show less bearing capacity improvement with higher settlements. For encased case, the response demonstrated superior behavior than that of with only ordinary stone columns; however, it is found that the improvement in bearing capacity significantly depends on the surrounding native soil properties.