A no-smoking clause is valid and enforceable
Yes, a no-smoking clause in a lease is valid and enforceable in Belgium. The landlord can prohibit smoking inside the rented property to prevent damage to walls, ceilings, and fixtures, and to avoid persistent odours. This does not infringe on the tenant’s personal freedom. Violation can constitute a breach of contract justifying lease termination.
The right to include a no-smoking clause derives from the principle of contractual freedom. The landlord has a legitimate interest in protecting their property from smoking-related damage, which can include yellowed walls, burnt fixtures, and deeply embedded odours that are costly to remove.
Courts have consistently upheld no-smoking clauses as valid, provided they are clearly stated in the lease and accepted by the tenant at the time of signing. The clause restricts behaviour inside the property, not the tenant’s private life in general.
How to draft an effective no-smoking clause
A well-drafted no-smoking clause should include:
- Clear prohibition — explicitly state that smoking is prohibited inside the property
- Scope — specify which areas are covered (interior only, or including balcony/terrace)
- Type of smoking — traditional cigarettes, e-cigarettes, cannabis (if relevant)
- Consequence of breach — reference to potential lease termination
- Evidence mechanism — entry inventory noting clean walls and absence of smoke damage
| Clause element | Recommended wording |
|---|---|
| Prohibition | ”The tenant undertakes not to smoke inside the rented premises” |
| Scope | ”Including all rooms, common areas, and enclosed balconies” |
| E-cigarettes | ”This prohibition extends to electronic cigarettes and vaping devices” |
| Breach | ”Breach constitutes a failure to use the property as a good tenant” |
A detailed entry inventory of fixtures is essential when a no-smoking clause is included. Note the pristine condition of walls and ceilings. At the exit inventory, any yellowing or smoke damage will be clearly attributable to the tenant’s smoking.
Enforcing a no-smoking clause
If the tenant violates the no-smoking clause:
- Written warning — send a registered letter reminding the tenant of the clause and requesting compliance
- Evidence gathering — document the damage (photos, expert assessment)
- Mediation — attempt to resolve through dialogue or a mediator
- Justice of the peace — if the breach is serious and persistent, request lease termination for breach before the justice of the peace
- Damage claim — claim the cost of repainting, deep cleaning, and any other restoration work
The court will assess whether the breach is sufficiently serious to justify lease termination. Occasional smoking is less likely to result in termination than persistent, heavy smoking that has caused visible damage. The proportionality of the sanction matters.
Deductions from the rental deposit for smoking damage are possible, based on the difference between the entry and exit inventories.
Regional specifics
Brussels-Capital Region
The ordinance of 27 July 2017 does not specifically address smoking clauses, but contractual freedom applies. Brussels courts have upheld no-smoking clauses in residential leases as valid contractual provisions.
Walloon Region
The decree of 15 March 2018 similarly relies on general contractual principles. Walloon courts accept no-smoking clauses as a legitimate exercise of the landlord’s right to protect their property.
Flemish Region
The Vlaams Woninghuurdecreet of 9 November 2018 does not contain specific provisions on smoking. Flemish courts follow the same approach, recognising no-smoking clauses as valid contractual terms.
Civil Code, art. 1728 (tenant’s obligation to use the property as a good tenant) and art. 1134 (contractual freedom). No-smoking clauses are recognised as valid contractual provisions across all regions.