The building structure is designed as reinforced concrete, in a fixed grid 340x340, forming a strong grid that is clearly readable on the facades, emphasizing the tectonics of the building. That tectonicity is lost in the atrium, where the construction is completely hidden, and the wooden shades deny such an arrangement with their ellipsoidal free form. The roof is designed as a double structure to enable the reflection of sunlight and the flow of air between the two roof layers, which prevents the roof slab from overheating. All the fields on the facade grid are built of brick in a recognizable 3D style, allowing the number and arrangement of windows to make a game on the facade and break the monotony of the concrete grid.