Free plane,
2. Free facade,
3. Horizontal long window,
4. bottom overhead,
5. Roof garden
First of all, Corbusier is an architect and urban planner. The five points of this new building put forward by him have played a very important role in the urban planning pattern of Paris.
Overhead on the ground floor: it refers to freeing the ground floor space so that it can be used for other purposes, rather than saying that you have to get a garage below or something that is inconvenient to move upstairs. In this way, people will use free space upwards.