WORK IN PROGRESS. In this project, we had to design an expansion of the existing neoclassical building, integrating the “old” with the “new” with respect and creativity. One of our primary goals was to put in practice sustainable design principles by proposing an environmentally friendly and energy efficient building. Green roofs and Green walls consist our main tools for achieving the desired natural microclimate for both the resident and the neighbourhood at the hill of Filopappou.