When the student leave the city

useally about may but many students have there contacts still to aug /sept thats what happend with my bfs

When I was checking ulb calendar on the website yesterday I saw the exams will start from 27 may till 29 of June that's mean most of the student must leave at this period.  So do u think the flat rent chances would increase now ?

Apartments are available all year around, contemplating numbers increasing / decreasing is not going to help you find an apartment, concentrate your thoughts on practical solutions for finding somewhere to live. Many international students are going to be EU nationals anyway, they can come and go in Belgium as they please, non EU students are a minority and only those ones have limits on their residency.