Objectives: The project works to design and implement environmental improvement systems for industrial estates in the North of Portugal-Castilla y León cooperation area, through the implementation of Nature Based Solutions (NBS). The environmental improvement (but also social, economic and cultural) will result from the combined incorporation of renaturalisation patterns and sustainable urban drainage systems, both in public and private spaces and buildings, located along a corridor that we call green-blue, previously defined. NBS will be implemented in two pilot projects: one in the industrial estate Argales, in Valladolid and the other in the industrial estate CANTARIAS, in Braganza. Results: — Improvement of air quality, urban heat island in polygons and rainwater infiltration. — Demonstration of the effectiveness and applicability of NBS in the environmental improvement of industrial estates and installed companies. — Generation, in the area of cooperation, of a new culture about the need to have nature in order to improve the quality of life of people and the protection of the planet. — Increasing the competitiveness of polygon companies due to their commitment to climate change mitigation and adaptation. — Training of personnel in NBS and generation of green jobs. — Increase in the economic value of buildings and landscapes of urban space.