Belgian Lease Basics: Form, Registration and Repairs by Region

Underneath the regional differences in deposit caps and notice periods sit a handful of ground rules that hold every Belgian residential lease together: it has to be in writing, the landlord has to register it, a dispute goes to the same court wherever in Belgium the property sits, and both sides have defined repair duties. Woninghuur in Dutch, bail d'habitation in French, this page covers the basics that make a lease valid and enforceable in the first place.

The rental deposit and ending a lease are each covered on their own page, alongside Belgium's rent indexation rules. This page is the starting point: form, registration, jurisdiction, repairs and subletting, Region by Region where it genuinely differs, and stated once where it does not.

Information last verified on 22 July 2026. This page provides general legal information and does not constitute legal advice in an individual case.

Written form and what the lease must contain

A residential lease has to be in writing in all three Regions. The prescribed content is broadly the same everywhere: the identities of the landlord and the tenant, the start date, the duration, a description of the premises, the rent and the charges. Wallonia and Brussels go a step further and require a mandatory explanatory annex to be attached to the lease, setting out the tenant's rights in plain terms.

Registration is the landlord’s job, and it is free

Registering the lease is the landlord's duty in Flanders, Wallonia and Brussels alike (Flanders art. 11, Wallonia art. 53, Brussels art. 227). It is due within 2 months of signing, and it costs nothing for a residential lease. If the landlord does not register it, the tenant can end a nine year lease without the normal notice period or indemnity. In Flanders and Wallonia this bites automatically once the two month deadline lapses. In Brussels the tenant must first send the landlord a formal registered mail demand to register and wait a month with no result (art. 227), and the landlord there also loses the right to index the rent for as long as the lease stays unregistered.

Brussels currently requires registration on BOTH the regional platform and the federal one, since 1 January 2025. This dual requirement is a provisional situation rather than a settled policy: the Region and the federal state disagree over who is competent, and both registrations apply for now while that dispute is unresolved. A registration completed on only one of the two platforms is not the complete registration Brussels now requires.

Every dispute goes to the same court

This part of the picture did not regionalise. Wherever in Belgium the rented property sits, a residential tenancy dispute goes to the vrederechter, the juge de paix, under article 591, 1 of the Code judiciaire. That article gives the vrederechter, the juge de paix, jurisdiction over residential lease disputes regardless of the amount actually in dispute, for the district where the property is located. This is federal and uniform, so it is stated once here rather than three times.

Repairs: a shared general rule, three separate lists

The general split is uniform in substance across Belgium: the tenant handles minor, day to day maintenance, and the landlord handles structural repairs. What is not uniform is the reference list of exactly which repair falls on which side. Each Region issued its own list once tenancy regionalised: Flanders in Annex 4 to its decree, Wallonia through the arrêté du Gouvernement wallon du 28 juin 2018, and Brussels through the arrêté du 23 novembre 2017. The federal Royal Decree list from 1991, sometimes still cited as though it were current, has been replaced in every Region and is not current authority in any of them.

Subletting and assignment

A tenant who uses the rented unit as their main residence cannot sublet the whole unit, and cannot assign the lease to someone else, without the landlord's prior written consent. Partial subletting, letting out part of the unit while the tenant continues to live there, is possible with the landlord's consent. Brussels codifies specific timing for this: a 15 day registered mail notice before a partial sublet, and a 30 day window for the landlord to respond to a request to assign the lease.

This page provides general legal information about the basics of a Belgian residential lease and does not constitute legal advice for an individual case. Written form, registration, repair obligations and subletting rules depend in part on which Region the rented property is located in, and the underlying decrees and ordinances are amended from time to time. Confirm the current position with the competent regional administration, Belgian Tenant Rights, or a notaris / notaire, before acting.

Frequently Asked Questions

Does a Belgian residential lease have to be in writing?

Yes, in all three Regions, with prescribed content: the identities of the parties, the start date, the duration, the premises, the rent and the charges. Wallonia and Brussels also require a mandatory explanatory annex attached to the lease.

Who has to register a Belgian residential lease, and does it cost anything?

Registering the lease is the landlord's duty in Flanders, Wallonia and Brussels alike (Flanders art. 11, Wallonia art. 53, Brussels art. 227). It has to be done within 2 months of signing, and registration of a residential lease is free.

What happens if the landlord never registers the lease?

The tenant can end a nine year lease without the normal notice period or indemnity that would otherwise apply, and in Brussels the landlord additionally loses the right to index the rent for as long as the lease stays unregistered.

Does Brussels have a special registration rule?

Yes. Since 1 January 2025, a Brussels residential lease has to be registered on both the regional platform and the federal one, a dual registration requirement that has no equivalent in Flanders or Wallonia.

Which court hears a residential tenancy dispute in Belgium?

The vrederechter, the juge de paix, under article 591, 1 of the Code judiciaire. This court has jurisdiction over residential tenancy disputes regardless of the amount in dispute, for the district where the rented property is located, and this rule is federal and uniform, not regional.

Who is responsible for repairs in a Belgian rental, the tenant or the landlord?

The general split is uniform in substance: the tenant handles minor day to day maintenance, the landlord handles structural repairs. But the reference list of which specific repairs fall on which side is Region specific, since each Region issued its own list when tenancy regionalised. The old 1991 federal Royal Decree list is no longer current authority in Flanders, Wallonia or Brussels.

Can a tenant sublet or assign a Belgian residential lease?

Not without the landlord's prior written consent, if the tenant uses the unit as their main residence. Partial subletting is possible with consent, provided the tenant keeps living there. Brussels specifically codifies a 15 day registered mail notice for a partial sublet, and a 30 day window for the landlord to respond to an assignment request.