The object of the project is the building of the Blovice District Department. The building no longer meets the requirements for technical competence of constructions. For this reason, the outer cape will be insulated, if necessary the filling of the openings will be replaced, the existing obsolete gas heat sources will be replaced, the hot water heating system and the heating system will be modified. The project is oriented towards reducing the energy performance of the building. Its implementation will have a positive impact on the environment, saving funds and saving energy.