The design concept of office appeared from the design features of the building found out in the design. After dismantling of the old finishing architects of UNK project discovered the openings reminding window apertures in many inner walls.
Architects developed the outlined street subject. The real wooden windows were inserted into apertures which if necessary can be opened. Different types of finishing visually divide rooms on "external" and "internal", for example, if from the one side the wall is brick representing "street", from another it is painted "in interior style".