We have completed the renovation works of the Regional Court building in Warsaw. We have carried out the works in stages, focusing on the subsequent segments of the building, which were Patio 1, 2 and 3 located behind the lobby. The scope of works included mainly cleaning the stone elevation by sanding, replacing old welds and replacing or supplementing stone slabs together with the impregnation of the whole façade. The plasterboard part of the façade has also been subject to renovation works, during which we have removed the old layers and covered the walls with new plaster colored in mass. We have replaced not only flashings, cornices and window sills, but we have also refurbished external doors in accordance with the conservation guidelines.