The extension amendment is used when:
- The short-term lease is expiring and both parties wish to continue
- You want to extend without creating a new lease (avoiding new costs)
- The tenant wants to stay but does not wish to commit for 9 years
Note: if you do nothing and the tenant stays after expiry, the lease is automatically extended under the same conditions — but without a formal amendment, the situation is legally fragile.
| Region | Maximum total duration | Number of extensions | Reclassification |
|---|---|---|---|
| Brussels | 3 years | Unlimited if total ≤ 3 years | 9-year lease if > 3 years |
| Wallonia | 3 years | Unlimited if total ≤ 3 years | 9-year lease if > 3 years |
| Flanders | 3 years | Max 1 extension (Flemish Decree) | 9-year lease if conditions not met |
In Flanders, the Vlaamse Woninghuurdecreet imposes stricter conditions. Check the rules applicable to your situation.
Our generator produces an amendment including:
- Reference to the original lease (date, registration number)
- Identification of the parties
- New end date of the lease
- Rent applicable during the extension
- Confirmation that all other clauses are maintained
- Mention of the rental deposit (maintained)
- Signatures of the parties
- Total duration: verify that original lease + extension does not exceed 3 years
- Registration: submit the amendment to the Legal Security office within 2 months
- Indexation: if indexation is due, calculate it before setting the new rent
- Notice period: the extension does not change applicable notice rules
- Flanders: comply with the Flemish Decree conditions (only one extension allowed in certain cases)