Brussels - neighbourhoods and rent levels

In Brussels, city centre rents are typically around €1,000–1,500 per month for a two-bedroom apartment, and lower in less popular areas.

The Belgian government provides a tool to calculate an estimated rental price of your property, which can also help you determine if you’re paying too much rent. Adverts must include an accurate rent, otherwise the landlord can be fined. As a result, negotiating the rent is rare. 

Expatica guide to neighbourhoods in Brussels:

https://www.expatica.com/be/moving/location/brussels-neighborhoods-102225/