Title: Optimum network design for the scheduling of building works, for a constant balancing and distribution of staff resources. SUMMARY Since the beginning of the 20th century until the present day, the problem of resources has been widely studied, in particular that of human or staff resources in its broader sense including the field of building. Many and excellent works have been carried out and are still being developed about the labour taking part in Building with outstanding contributions, especially those related to its performance, productivity, methods and systems to improve performance, resources distribution, etc., but rather scarce are the research and contributions with regard to its ideal balancing referred to in this thesis. The aim of this research study is the design of an optimum network to predict the beginning and completion timing of all the necessary jobs for the implementation of a building work, to define the simultaneity or dependence relationship among them, and being the result of a constant balance and distribution of staff. Our general objective in this research work, is to establish a process for the optimum design of a scheduling network of building works, as a consequence of a constant balancing and distribution of staff resources by previously attaining the intermediate specific objectives fulfilled in the development of a heuristic algorithm that permits us balance the staff resources in an ideal or optimum way, modelling and processing it, solving the peculiar cases and obtaining the ideal or optimum scheduling network from the former balance. This doctoral thesis tries to provide with some theories that can be put into practice, to solve the previously mentioned problems, paying especial attention to labour balancing and offering the Building sector a new, practical, efficient and useful tool.