In the context of the reconstruction of the Mlýnská Gate and Gardiska in Kroměříž, it was necessary to relocate the transformer station, which was located directly at the entrance to the UNESCO-protected building. A new transformer station was built as a technical structure of the smallest possible volume, accessible from the street for operation, to house the transformers and switchboards.
The entrance building to the castle cellars is designed as a representative shop for castle wine in direct connection with the cellars. In form and unified material, it represents a unique archaeological find of a Gothic bastion, which surprisingly appeared on the site originally planned for the transformer station. The building, with its shape resembling a bastion, is characterized by a diagonally inserted cubic volume above the excavations. This is similar to the rotated tower at Kroměříž Castle, which has Gothic foundations. The floor plan of the bastion is outlined in the interior with a different material in the floor, a skylight above it evokes the unroofed defensive tower and accentuates the find beneath it. Colored concrete in the interior indicates underground layers.

The transformer station's structure is reinforced concrete, with standardized doors. Ventilation of the cells is important due to the heat generated by the equipment, which is achieved by a chimney effect. Due to the high number of doors to the cells and the entrance to the castle cellars, it was necessary to unify the facade. This was achieved by wrapping the building in a second, slightly transparent facade, consisting of a metal structure with bronze patinated blinds. The greenish color of the metal optically connected the building with the historical environment, copper roofs, and towers. The gates to the cellars are highlighted by a stylized archbishop's coat of arms in the blinds. The entire building is made of one material, just like the original bastion. Concrete formwork allowed for the creation of plastic artistic elements, such as the relief of the archbishop's coat of arms on the facade at the entrance.