The possibilities of applying energy saving measures in municipal buildings are examined in this paper. Two municipal buildings, in the mountainous Municipality of Georgios Karaiskakis are used as case studies.

The thermal losses of the buildings and the relative energy demand for cooling and heating are initially calculated. A number of different energy saving scenarios, related both to the building envelope and to the electromechanical systems of each of the buildings, are formed. In order to select the optimum energy saving scenario technical and financial are concerned. Finally, some general conclusions about energy improvement of municipal buildings are set out, based on the findings of the study.