This paper focuses on how different historical stages of socio-economic development in Brussels are played out on the ground over time in one particular inner-city neighbourhood, the Quartier Dansaert. In particular, I document the history of this neighbourhood and how urban change and gentrification have impacted the outlook of multilingualism and the development of multilingual discourses and language hierarchies in its material and semiotic landscape over time. By using the rich history of multilingualism in the Quartier Dansaert as a case-study, I argue in favour of more historically-sensitive and longitudinal approaches to social and, in particular, linguistic change as played out in urban landscape.