Based on a one-day observation survey of courtyard houses residents' activities in 3 districts in Bamako, we analyzed the particularity of each "activity space", their transfer with the time and the overlap of those spaces according to the collectivity form. In the courtyard every activity require a specific space which is formed by the placement and movement of furnitures and tools. The activities in the courtyard are not specified to any component in the term of space and time, but some are intensely used than others (the tree-shadow is intensely use in afternoon and the front-door of residents' room all day). In the front-doors we observed the overlap of some "activity space" such as chatting and cooking, but many residents take their meal separately. The "activity space" of activities (laundry, wash up of dishes) using water and requiring an easy place for drainage don't overlap.
