It is arguably one of the most beautiful buildings in the city of Lille. Its construction began in 1651, as a way to provide a meeting place for business people and finance, who previously gathered in the main square outside, in the wind and cold. It was built by Architect Julien Destrée in 1652. When you enter the courtyard, you have the impression of being in a single square building, but they are really 24 small identical houses built by 24 different business. It forms a very quiet square around a courtyard with arches; When you walk in you no longer hear the noisy and bustling streets around.