In Wattrelos, hundreds of houses will be built, at the initiative of the CIL (Interprofessional Housing Committee) created by Albert Prouvost and other bosses. He was indeed the founder of the CIL of Roubaix-Tourcoing, which was intended to improve social housing through employer contributions. The Maison de l'Enfance was born thanks to his wife, Anne, who founded the Association des maisons de l'Enfance.