Reason of maintenance is the existence of basic frame of beginnings and directions that should condition each frame of interventions in the space of Salonica’s harbor. Reject of new demolitions and absolutely checked layout. The new buildings will be supposed to include itself in the historical urban organization, in the scale but also in style of existing situation. The administrative buildings, (offices of eleuthera zoni) have historical and typological value. Buildings of deposits, as the cooling deposit, they stress the character of historical web and they should be maintained. The very good situation of manufacture of the two buildings constitutes another reason of maintenance. Trough the process of imprinting was recognized the values of the buildings, placing criteria that should be calculated at the intervention. The phase of imprinting contributed in the comprehension of phases of development which it followed a total proposal for the common exploitation for both buildings. Many buildings in the port area changed their use in order to follow the general plan of integration of the port with the city. A re-use with respect always in the character of the port, harmonized at the same time with the modern data. The new use is a multifunctional space. It is a multi-centre for lectures, seminars, an exhibition space, coffee bar, as well as a series of auxiliary spaces for these operations. The proposal is distinguished by the unit styles and the discretion of intervention, ensuring the smooth continuity of development of the building. The structural system is maintained. The existing manufacture of the fridge-building with the stone, and the insulation achieves the saving of energy. The central corridor unifies the buildings. The addition of previously floor aims in a morphological connection with the existing building, ensuring however with the use of modern materials and planning the discrimination of old with the new always with respect for the existing architectural values. The exhibition space with the coffee bar, motivate people to visit the new building. The linear and continuous for all the height of the fridge building wall, with the use of ramps instead of dividing, links the exhibition spaces inviting visitors to explore the opposite side. Between floors there is continuity because of the void.