The Atlas building accommodates several departments for the administration of the city of Antwerp such as cultural integration, language offices and a material rent-out. There are open plan offices and individual offices, a large reception space and an exhibition space at the ground floor. The renovated concrete structure and a new building form a courtyard that connects to the public exposition space. The deep construction of the ground and first floor is compensated by a glazed atrium that connects the floors visually and physically. The atrium allows natural light at the reception desk and also helps visitors orientate themselves after they enter the building. A system of concrete columns and slabs, with a core containing circulation and sanitation, forms the structure of the building. The generality of the open plan and the repetitive openings make it possible for the program to change in the future.