@eest9 Hello Erwin, and welcome to Belgium! The universities usually have a web page that give hints to incoming students, e.g. https://www.unamur.be/en/teaching/life/housing
The keyword you are looking for might be "kot", which means a student room.
Good luck!
@madprog Unfortunately the kot service from my university returned to me months after my application that they are already full and the list of private landlords was heavily outdated. I haven't looked at namur that much because I still thought I could get something at Louvain :) Thanks for the tip :)