The awareness of the necessity of energy saving strategies in the refurbishment of housing constructions has arisen in Slovenia recently, being encouraged by corresponding EU-strategies. The new Slovenian housing system along with institutional and governance changes has taken place since 1991. In this paper, special attention will be paid to newly introduced policies concerning energy efficiency of building constructions on the national level and the endeavours to refurbish the existing multi-family housing stock which represents the most problematic issue in terms of a long term investment perspective. Slovenia has not developed any special policy or legislation regarding sustainable refurbishment yet, either at the national, or at the local level. The City Municipality of Maribor is one of the most significant cases in Slovenia adopting the strategies for energy efficiency in public building sector. As a best practice model, the strategies of energy efficient refurbishment, based on the local energy concept and supported by financial mechanisms of public private partnership, will be presented.