The whole office space is divided into two layers, and the design is carried out surrounding the inner center staircase, which just connects the space in the two layers. The space around staircase is thus made into a core area with the staircase as a vertical channel. As to staircase, two materials are adopted in its two surfaces: old teakwood for the upper surface and mirror surface stainless steel for the lower surface. The collected old teakwood comes from the old western-style houses in Shanghai, thus endowing local memory to the space. The reflection of mirror surface stainless steel obscures the staircase’s boundaries in the space and eliminates the senses of volume and weight. Thus, another space is emergent. The elliptic light in ceiling brings about natural light to the room.