The conversion of this apartment house into a hotel, comprising an extension in the top floor, required extra attention to the structural stability of the building. We reinforced the foundations by jet grouting and used steel elements and reinforced concrete structures in the upper floors for improved stability. An integral part of the project was the installation of air-conditioning, cooling and recuperation systems and other technologies, as well as renovation of underground premises and garage, including garage entrance. All rooms were finished and furnished in high standard, while preserving the historical character of the building, terrazzo floors and other elements.