Yes, the lease can prohibit pets with some limitations
A landlord can include a no-pets clause in the lease, and Belgian courts generally uphold such clauses. However, the clause cannot prohibit assistance animals (guide dogs, therapy animals) and must be reasonable. Brussels has introduced limitations on blanket pet prohibition clauses. A well-drafted clause should specify which animals are prohibited and the reasons.
The right to include a pet prohibition in a Belgian lease stems from the principle of contractual freedom. Since the tenant agrees to the clause by signing the lease, they are bound by it. However, this freedom is not absolute — it must be balanced against the tenant’s right to enjoy the property and anti-discrimination legislation.
Belgian case law shows that courts generally uphold specific and reasonable pet clauses (e.g., “no dogs over 25 kg” or “no cats in the apartment”) but may strike down overly broad clauses (e.g., “absolutely no living creatures of any kind”) as disproportionate.
How to draft an effective pet clause
For landlords wanting to restrict pets:
| Clause type | Example | Enforceability |
|---|---|---|
| Total prohibition | ”No pets allowed” | Generally upheld (except assistance animals) |
| Partial prohibition | ”No dogs or cats; small caged pets allowed” | Strongly upheld |
| Size restriction | ”No dogs over 20 kg” | Upheld |
| Number restriction | ”Maximum 1 pet” | Upheld |
| Damage clause | ”Pets allowed, tenant liable for all damage” | Strongly upheld |
Best practices:
- Be specific about which animals are prohibited
- Explain the rationale (noise, hygiene, building rules)
- Always exclude assistance animals from any prohibition
- Consider allowing pets with a damage deposit supplement
BailBelgique offers customizable pet clauses that are legally compliant and adapted to your specific property type. The platform ensures the clause respects assistance animal exceptions and regional rules.
Enforcement and exceptions
When the tenant violates the no-pets clause:
- The landlord should first send a formal written notice
- If the tenant does not comply, the landlord can seek termination via the Justice of the Peace
- The court will assess whether the clause is reasonable and was clearly agreed upon
- Termination is not automatic — the court considers proportionality
Mandatory exceptions:
- Assistance animals: guide dogs, hearing dogs, and therapy animals cannot be prohibited under anti-discrimination law
- Existing pets: if the tenant had a pet before the clause was introduced (lease renewal), the clause may not apply retroactively
- Building regulations: co-ownership rules may override or supplement the lease clause
If you are a tenant with a pet in a property where pets are prohibited, understand that the landlord has grounds for lease termination. However, termination requires a court order — the landlord cannot evict you unilaterally. Negotiate with the landlord or seek legal advice before the situation escalates.
Regional specifics
Brussels-Capital Region
Brussels has introduced the most progressive legislation on pet clauses. The Brussels Housing Code limits the ability to impose blanket pet prohibitions, recognizing that pet ownership contributes to tenant well-being. Reasonable restrictions remain possible.
Wallonia
The Walloon Residential Lease Decree does not specifically address pet clauses, deferring to general contractual freedom. Walloon courts generally uphold reasonable pet prohibition clauses.
Flanders
The Flemish Housing Rental Decree does not specifically regulate pet clauses. Flemish courts apply the same general principles: clauses must be clear, reasonable, and respect assistance animal exceptions.
Belgian Civil Code — Contractual freedom allows pet clauses. Anti-discrimination legislation — Assistance animals cannot be prohibited. Regional housing legislation may limit the scope of pet prohibitions (especially in Brussels).