In the design of Roche Office located in Maslak, the project is concluded with evaluating together the corporate data and restructure criteria of Roche. In the direction of corporate aim of Roche, the decision of not to make logo based connotations, as keeping away from the factors referring to the logo directly, has a role in allowing hints that reminds logo, to be in the design. In repeating floor halls, the mirror surfaces which address to form and color of logo, attract the attention as first hints of hexagon. In entrance corridors, with blue colored (corporate color) mirror reflections, the hexagon completes itself. In the same way, the exterior shell of conference hall and also the configuration of lighting fixtures in lounge still make reference to hexagon. Concept of forming a wholeness beginning from the smallest component of the interior space is determined as a Fundamental principle. Departing from this principle, the handles on each side of the glass door, completing each other, provide a reference to the hexagon. All this concept, in fact, connects with a point of origin that comes from organic chemistry formulations. Blue tinted mirrors, massive teak finishings and heraklith (in the conference room and lounge) are the featured materials of the project. As conceptualizing the interiors of the office spaces, placing the functionality in center; the work station design that arrange the employees in the available area, rest areas that render the employees more efficient and helps to reduce the stress and the conference rooms are designed as the characteristic components of the project. This multiple components of the design project are applied as a whole, combining with the disordered concept of the interior illumination.