Defining's Seongsu office is located in Seongsu-dong, the fastest-changing region in Seoul. In the past, factories and workshops used to be gathered together, but recently, it has emerged as a hot place for young hipsters and entrepreneurs due to tremendous changes, and is now regarded as a center of the design, fashion, and entertainment industries. Seongsu office is designed to be an ideal space to absorb the creative energy that Seongsu-dong emits and provide the best service for its customers. In addition, by drawing concrete, the symbolic material of Seongsu-dong, into the space to create a sense of Seongsuness, and aluminum was used in many areas to express Defining's future vision. Each space is placed in an ideal location optimized for the functioning of the space, and these spaces are organically connected, perfectly implementing the balance of work and relaxation.