In order to achieve efficient projects when producing any product, the cost, quality, and production time need to be optimized. However, this is not always easy to achieve. The budgets of the projects may be exceeded, they may not be completed in the stipulated and committed time, or the products may not be produced with sufficient quality for various reasons. It is vital to analyze the project functions/steps very closely throughout the design phase to ensure that all feasible alternatives are studied and examined, and that the most appropriate alternative is picked for the functions that can meet the project criteria. Value engineering (DM) can be defined as an organized effort to analyze product features, functions and material selections; is designed to solve problems and/or reduce costs while maintaining or improving performance and quality requirements; and performs essential functions at the required quality, reliability, and life-cycle cost. In this study, value engineering was used for the selection of trees needed in the construction of parks. A value engineering team decided that the trees should be coniferous with the prerequisite that they can remain green without shedding their summer-winter leaves and determined which criteria the coniferous trees required to be located in the park should meet. The team members conducted value engineering after determining which trees met these criteria and were subsequently purchased. As a result, the team determined the most appropriate optimum cost solution with the value engineering method to meet all the criteria among the determined alternative tree species