The construction sector and mining and quarrying industries are the largest waste producers in the European Union, accounting for 35% and 28%, respectively, of the total waste produced. Therefore, it is essential to develop innovative constructive solutions based on the reuse of these wastes to create new materials with added value. This work presents the design of a modular system for vegetated surfaces with alkaline activation materials (Geogreen). The modular system stands out in the area of building materials, differentiating itself from other existing green roofs and green walls by its constructive characteristics, incorporation of industrial waste materials and integration of sustainability principles. The results demonstrate that this modular system contributes not only to the aesthetic function of a vegetated surface but also allows improving the thermal and acoustic conditions of the built environment. It contributes to the construction market with a more sustainable solution through the integration of waste materials and energy minimization.