The design concept is to propose circular shaped buildings as “sundials” in the desert. These 3 buildings are constructed with sustainable materials (steel structure insolated with earth insulation). Planted Court wards with local endemic plants cools architecture and outside shaded spaces. Green roof tops refresh the building during hot weather. Sewage water coming out of the buildings is treated by an innovative way through filtering ponds located outside of the buildings. Papyrus plants are used to purify water. Clean water is then recycled inside of the buildings for sanitary use. «Green dials” a sustainable project of Lycée Bonaparte designed with low impact on the environment.