I go with Maelle to the "art village". This place exists since the 90's. China was building a hudge stade in this area of Dakar, and they needed somewhere to host the chineses workers, less expensive than the senegalese.
Years later, the senegalese state decided to offer this place to national artists. They could come here and work for one year for free, and then give to another artist. But the first who came never left. So today, most of the famous senegalese artist work in this village since years.