There is great potential to reduce energy consumption and greenhouse gases by investing on upgrading the energy performance of the social housing stock. Creating energy-efficient homes and sustainable constructions can contribute significantly to the well-being of citizens, especially the underprivileged ones. Best practice examples of social housing retrofitting in Europe and Greece are reviewed, identifying barriers and prospects for the Greek social housing sector. The case-study of a social housing in Maroussi, Attiki, is used to further examine existing performance and potential...