The project regards the rehabilitation of a former sugar refinery in aconvention center and exhibition hall which are going to become a space for social and cultural events. The project includes a reflection on the development of the city of León, its connections with the city center and train station. The exhibition space is totally flexible depending by nature and size of the events and can host new events daily. In order to use renewable energy, solar roof provides the electricity needed to power buildings and reuse of the chimney of the factory is reused as a conduit for supplying air. The program includes an exhibition hall consisting of three parts of 12 700 m² and a convention center with auditoriums, meeting rooms, conference rooms, exhibition spaces, a tourist office, bars and a 400 parking of 8500 sqm.