Replacing a co-tenant requires landlord and co-tenant agreement

Quick answer

To replace a co-tenant, you need the agreement of both the landlord and remaining co-tenants. A lease amendment (avenant) is drafted to remove the departing tenant and add the replacement. The departing tenant is released from all obligations once the amendment is signed and a partial inventory of fixtures is conducted.

The replacement of a co-tenant is a common situation in Belgian shared housing. The process is governed by regional housing legislation, which has introduced specific provisions to facilitate tenant changes without terminating the entire lease.

The key principle is that a co-tenant replacement is not an automatic right — it requires the consent of all parties involved. However, regional laws increasingly limit the landlord’s ability to refuse a replacement without valid grounds. This protects tenants who need to leave while ensuring the landlord receives a suitable replacement.

Understanding how to end a shared housing lease is essential context for the replacement process.

Step-by-step replacement procedure

  1. Notify the landlord and co-tenants in writing of the intended departure
  2. Propose a replacement tenant who meets the landlord’s reasonable requirements
  3. Arrange a meeting between the landlord, remaining co-tenants, and the proposed replacement
  4. Draft a lease amendment (avenant) adding the new tenant and removing the departing one
  5. Conduct a partial inventory of the departing tenant’s room
  6. Transfer the deposit share from the departing to the incoming tenant
  7. Register the amendment with the FPS Finance

The lease amendment should include:

  • Identity of the departing and incoming tenants
  • Effective date of the change
  • Confirmation of deposit transfer arrangements
  • Signatures of all parties (landlord, remaining co-tenants, departing and incoming tenants)
BailBelgique tip

BailBelgique offers a lease amendment template specifically designed for co-tenant replacements. The platform ensures all required elements are included and the document is ready for registration.

Deposit and inventory considerations

The financial aspects of a co-tenant replacement require careful handling:

ElementResponsibilityAction
Deposit shareDeparting tenantTransfer to incoming tenant or arrange refund
Partial inventoryAll partiesConduct before departure
Outstanding chargesDeparting tenantSettle all amounts owed
Shared housing agreementAll co-tenantsUpdate to include new tenant

The rental deposit must be properly handled during the transition. The departing tenant’s share can be transferred to the incoming tenant, but this requires the landlord’s involvement if the deposit is held in a blocked bank account.

Warning

Never leave a shared housing arrangement without a formal lease amendment. If you simply leave without proper documentation, you remain legally bound by the lease, including the solidarity clause if one exists. This means you could be held liable for unpaid rent by your former co-tenants.

Regional specifics

Brussels-Capital Region

Brussels has the most developed framework for co-tenant replacement. Under the Brussels Housing Code, a departing co-tenant can propose a replacement, and the landlord can only refuse for serious and legitimate reasons. The notice period is 2 months.

Wallonia

The Walloon Residential Lease Decree allows co-tenant replacement with landlord consent. The notice period is 3 months. The remaining co-tenants must also agree to the replacement.

Flanders

The Flemish Housing Rental Decree provides a structured replacement process with a 3-month notice period. The landlord may refuse the proposed replacement if the candidate does not meet reasonable solvency requirements.