If you change your address in Belgium you are required to pass this information on to the local authority where you live. You must do this within eight working days of your move to a new address.
If you move to another city or borough, a policeman from the local area will conduct a residency check at your new address. If you are moving within the same city or borough, then this check will not normally take place.
Finally, it is essential to pass your new address on to the Human Resources Department at the university in order to ensure that your pay slips and social documents are sent to the correct address.