This study focused on designing a stormwater detention pond in Al Mafraq Region to address significant water management challenges, including inadequate infrastructure and limited administrative capacity. Implementing a stormwater detention pond aimed at mitigating the adverse impacts of stormwater runoff, reducing flooding instances, and improving overall water resource management in the area. The thesis aims to design a water retention pond for a comprehensive assessment of the hydrological characteristics of the area, including rainfall patterns, catchment area, and existing drainage infrastructure. Various design parameters, such as pond size, depth, and outlet structures, have been carefully considered to optimize pond performance in efficiently storing and mitigating stormwater. A comprehensive feasibility and cost analysis was conducted to evaluate the economic viability of the proposed stormwater detention pond. This analysis encompassed cost estimates for construction, operation, and maintenance, considering material costs, labour expenses, and ongoing management requirements. The economic analysis provided valuable insights into the project's financial feasibility, assisting decision-makers in effectively allocating resources. Furthermore, this study explored the potential benefits of incorporating paulownia trees within the stormwater detention pond area. The paulownia tree, known for its rapid growth and deep root system, was assessed for its contributions to soil stabilization, erosion control, and water absorption. The feasibility of integrating paulownia trees into the design was evaluated from an environmental and economic standpoint. The findings of this study revealed that the design of a stormwater detention pond in Al Mafraq Region was a feasible and cost-effective solution for managing stormwater runoff and enhancing water resource management. Including paulownia trees demonstrated the potential to improve the project's environmental sustainability. The outcomes of this research can provide valuable insights for decision-makers, engineers, and urban planners in developing effective stormwater management strategies and promoting sustainable water management practices in similar regions.