Pet prohibition clause in a lease in Belgium
Can the landlord ban pets in a lease in Belgium? Clause validity, limits, assistance animals and tenant's remedies.
Validity of the pet prohibition clause
Under Belgian law, the landlord has contractual freedom to set the conditions of use of the property. A pet prohibition clause is therefore valid in principle if included in the lease before signing.
The clause may be formulated in several ways:
- Total prohibition: “The tenant shall not keep any animal on the leased premises”
- Partial prohibition: “Only dogs and cats are prohibited”
- Conditional authorisation: “Animals are permitted subject to the landlord’s prior consent”
The recent trend in Belgian case law is more lenient: Justices of the Peace increasingly accept that keeping a small pet (indoor cat, fish, caged bird) does not constitute a serious breach of the lease, even in the presence of a prohibition clause.
Several recent rulings (Justice of the Peace of Brussels, 2024-2025) refused lease termination for keeping an indoor cat, considering the prohibition disproportionate where the animal caused no nuisance.
Legal limits
Proportionality
The judge may set aside the clause if it is disproportionate to the actual harm. An indoor neutered cat in a 5th-floor apartment does not cause the same harm as a German shepherd in a ground-floor studio.
| Animal | Prohibition generally upheld | Prohibition often challenged |
|---|---|---|
| Large dog | Yes (noise, damage) | - |
| Indoor cat | - | Yes (no proven nuisance) |
| Fish, turtle | - | Yes (no nuisance) |
| Exotic pet (reptile, ferret) | Depends | Depends on circumstances |
| Caged bird | - | Yes (except noisy parrot) |
Co-ownership
If the co-ownership regulations prohibit animals, the lease clause is added on top. The tenant must comply with both. Consult our guide on leases in co-ownership.
Unfair clause
A clause that would prohibit animals retroactively (imposed during the lease by a forced amendment) could be considered unfair.
Assistance animals: legal protection
The Anti-Discrimination Act of 10 May 2007 protects people with disabilities. A landlord cannot refuse an assistance animal, even if the lease prohibits pets.
Protected animals include:
- Guide dogs for visually impaired persons
- Assistance dogs for persons with reduced mobility
- Therapeutic animals prescribed by a healthcare professional
The tenant must be able to provide a certificate proving the animal’s assistance status. A landlord who refuses despite the certificate risks prosecution for discrimination.
This protection applies in all three Belgian Regions and to all types of leases (residential, commercial, student).
Practical tips
For the landlord
- Prefer a conditional authorisation clause rather than a total prohibition
- Provide for an additional rental deposit if the animal is permitted (1 additional month by agreement)
- Detail the conditions: maximum size, number, prohibited breeds if applicable
- Never refuse an assistance animal (legal risk)
For the tenant
- Read the pet clause before signing
- If you have a small pet, negotiate before signing — it is easier than afterwards
- Document the absence of nuisances (no neighbour complaints, no damage)
- If you have an assistance animal, provide the certificate in writing
To create a lease with adapted pet clauses, use our online lease generator. For more information, consult our guide on residential leases in Belgium.