The Galeries Lafayette is a French department store company. In 1895, Théophile Bader and his cousin Alphonse Kahn opened a fashion store in a small haberdasher's shop at the corner of rue La Fayette and the Chaussée d'Antin, Paris. In 1896, the company purchased the entire building at n°1 rue La Fayette and in 1905 the buildings at n°38, 40 et 42, boulevard Haussmann and n°15 rue de la Chaussée d'Antin.
Bader commissioned Georges Chedanne and then his pupil Ferdinand Chanut to design the layout of the Haussmann location. A glass and steel dome, and Art Nouveau staircases were built in 1912. The flagship store of Galeries Lafayette in Paris is a 10-story structure located at 40, boulevard Haussmann, in the IXe arrondissement.