The project consists in the implementation of customer service offices. They are located in a commercial premise in the centre of the city with a complex geometry, full of turns and structural elements that interfere in the understanding of the space. In order to organize the interior space and make its functioning effective, the turns are regularized by linked orthogonal geometries. Every one of the regular spaces are assigned to a different part of the program. Each regular room is defined and distinguished from the contiguous rooms by the use of different tonalities, which go from white to different shades of gray. The ceilings are thus turned into a sort of signage that defines the various uses. The indirect lighting placed in the ceiling reinforces this idea and allows the use of light fixtures whose length provides service to every workspace. The activity is concentrated in the first two meters of height. The office is organized and disorganized with the daily work, while the ceiling remains always ordered. In the access sequence, the furniture incorporates the technology and informs the people waiting. This furniture hides in its interior the structure of the existing building. The main staircase connects the customer service area with the offices in the upper floor. The unified design of the facade, with horizontal aluminum elements, allows the ventilation of the building installations and makes the space comfortable. In this way, the office transforms into a surprise full of anamorphosis and optical illusions that help us understand the functioning of the building.