In the context of the intended reduction of the total energy consumption and the improvement of structural physics, this thesis deals with the different methods of thermal renovation and its suitability for use on listed buildings. The Malfatti estate, Frank-Schalk-Platz 6, 1130 Wien, Austria serves hereby as an example case. This research paper answers the questions which heat transfer coefficient and diffusion resistance the structural components of the building may have. Therefore, the different methods of thermal renovation methods on listed buildings are divided into four chapters that deal with walls, flat roofs, windows and cellars. Furthermore, the differences between interior and exterior insulation are elaborated and the fields of application in conformity with the Austrian Federal Office for the Protection of Monuments are shown. The example case of House number 6, Malfatti estate, shows that even relatively small insulation thicknesses (5 - 6 cm) combined with an accurately planned renovation can significantly improve the heat transfer coefficient and diffusion resistance. The already accomplished restoration of the building is a successful example of thermal improvement on heritage-protected buildings and can be used as a prototype for renovations on other houses of the estate.