In Belgium

Rent capping is a recurring debate topic, but the legal reality is clear: no legal cap exists for the private rental market. The landlord is free to set whatever rent they wish when signing the lease.

The only existing regulation mechanisms:

  • The indicative rent grid (Brussels, Wallonia): non-binding
  • The triennial review: possibility to request an adjustment if the rent is too far from market value
  • Social housing: only sector with rents truly calculated on household income

Proposals for a binding cap (Paris model) have been filed in Brussels but have not been enacted.

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Good to know
Even without a legal cap, a tenant who considers their rent excessive can request a review before the justice of the peace if the rental value has changed by more than 20%. The indicative grid serves as the judge’s reference.

Practical example

A Brussels landlord sets rent at 1,300 EUR/month for a 30 m2 studio. The indicative grid shows 650-850 EUR. Nothing legally prevents them from charging 1,300 EUR — but they risk not finding a tenant. If a tenant signs at this price and later requests a review, the judge could adjust the rent downward.