The purpose of the project is to increase the energy efficiency of the building of the National Council of the Slovak Republic through comprehensive investment measures that will reduce the energy intensity of the building, improve its thermal insulation and contribute to a more sustainable use of energy. The investments made, such as the replacement of façade openings, the insulation of the ceiling above the heated areas of the garage, the modernisation of interior lighting and the installation of photovoltaic panels, will reduce energy losses and the running costs of heating and lighting the building. The project also contributes to a green approach to the management of public buildings. Expected results of the project: The project will result in a renovated public building with significantly improved energy performance and reduced primary energy consumption. The measures implemented under the project will enable the efficient use of renewable energy sources and contribute to reducing the environmental burden of the building, ensuring the long-term sustainability of its operation. At the same time, the improved energy performance of the building will increase thermal comfort for people using the premises of the National Council of the Slovak Republic.