The Chamber of Commerce and Industry is housed in an Art Nouveau building designed by the greatest names of the Nancy School. Following a competition launched in 1905, the construction of the building was entrusted to the architects Louis Marchal and Émile Toussaint. The stained-glass windows on the ground floor depict Lorraine landscapes and were designed by Antonin Daum and Jacques Grüber. Finally, the ironwork was entrusted to Louis Majorelle. The Chamber of Commerce and Industry is accessible to individuals upon request at the CCI reception on weekdays during opening hours, provided there are no meetings in progress; in this case, it can be viewed from the courtyard.