PROBLEM: The cost of living in the urban area is high.This reflect into everything in the system, including the accommodation. We living in the small space because of the cost and space available. To maximize the space usage is the challenge for today designer.
SOLUTION: The stair in our house always serving one function which is to transport people to the different level. The problem is we did not using it function all the time but it occupy the space all the time.
DESIGN: Build each step of the stair as a module which be able to adjust according to the suitable program.