The two-story apartment is being converted into 4 units of studio-type apartments. The smallest unit is 62 sqm while the largest one is 83 sqm. Each apartment unit comprises a living-dining kitchen, 1 spacious shower toilet, and a bed. On the 2nd floor, you will find that the bed has its own walk-in robe to provide the long-term tenant with the need for large robe spaces. For the stair, we eliminate 1 meter of the left side apartment on the 1st floor for corridor purposes. This will allow tenants to walk freely without creating any disturbance to other tenants' privacy. We think that this is the best way to utilize the existing stair in terms of public circulation, you will not need to create a new stair on the exterior. Although in effect we lose a few sqm in the "unit 2" apartment, the studio still manages to maintain a generous area of 73 sqm.