Preliminary study for an exhibition and conference centre that is located on a plot of 44 acres at north Thessaloniki. The basic functional units of the complex are: exhibition areas, consisting of three big halls with an area of 3250 m2 each one, a convention centre with a conference room for 250 people and auxiliary areas, a unit for the support services to exhibitors, a shopping centre, administration, leisure areas, auxiliary rooms, and warehouses. The proposed scheme aims at creating a flexible but, at the same time, well-organized environment, for accommodating both exhibitions and conferences. The exhibition halls are designed in such a way to allow the accommodation of separate, joint or single but bigger events. The character of the centre results from the combination of the units into a single complex, maintaining distinctive formal features in different sections of the complex.