The main task of the project is to meet the changed needs of the students, teachers and administration of the 122nd Primary School “Nikolay Liliev” and to improve the conditions of use in key areas of the school building. The designed reconstruction aims to achieve the maximum number of separate toilet cubicles, in accordance with the spatial limitations of the existing environment and taking into account modern requirements for school buildings. A safe, ergonomic and welcoming environment is proposed, which at the same time meets the demands for functional optimization of the areas covered by the project. The project includes improving the architectural appearance of the shared areas around the toilets on the main floors, as well as modernizing the changing rooms in the sports halls. The materials used ensure sustainability over time and extend the operational period of the sanitary premises. The end result will be a beautiful and pleasant environment for all users, with a color and material design in harmony with the character, features and dating of the building, and demonstrating the potential of architectural materials and details to educate.