Nowadays, there is a need to manage construction projects in the best way in terms of time-cost. Managing construction projects, especially with limited resources, is a frequently encountered problem in practice. In addition, when the number of projects increases and common resources are used, the allocation of resources to projects is of great importance in terms of time-cost in applications where many construction schedules overlap. In this study, it has been investigated that how these limited resources can be used in projects in case of using common resources in multiple construction projects with limited resources. For this purpose, a sample application on the balancing and allocation of labour resources by using the “WIEST Resource Balancing Method” is conducted and the issues that need to be done in project management and construction schedules are discussed. Three construction projects to be built on distant sites with specific project start dates and manufacturing quantity values are considered. In case of using common labour resources in these projects, it is aimed to integrate these labour resources into the projects in the most appropriate way in terms of time-cost. According to the findings of this study, it shows that many adjustments in terms of time and cost are necessary in case of using labour resource balancing with the WIEST method in projects that will start at the same time and have limited labour resources. It has also been observed that although there is a certain increase in project durations, it provides a reduction in project costs.