The ULB comprises three main campuses. The Campus de la Plaine with faculties such as the faculty of pharmacy in Ixelles. And the Campus du Solbosch,which is the main and biggest campus of the university, on the territories of Brussels and Ixelles municipalities, in the Brussels-Capital Region and the Campus Erasme (faculty of medicine) in Anderlecht beside the Erasmus Hospital. r notable campuses The university also has buildings and activities in Charleroi on the Aéropole Science Park, Parentville, Treignes and Nivelles.

The Université libre de Bruxelles has the halls of residence on each of the campuses in Brussels (Solbosch, Plaine, Erasmus). Their prices vary according to size and level of comfort. Most students at ULB live in private lodgings. The cost of sharing a private flat is about £301(€350). Students are suggested to find lodgings when they actually get there.