The tenant cannot leave without notice unilaterally

Quick answer

No, the tenant cannot leave without notice on their own, even in case of serious problems (unfitness, major defects, health hazards). The tenant must request judicial termination from the justice of the peace. The only exception is an official uninhabitability order from the municipal authorities, which suspends or terminates the lease by law.

The principle is clear: no matter how serious the problem, the tenant must follow the legal procedure. Leaving without notice exposes the tenant to:

  • Continued rent liability during the notice period
  • Termination compensation owed to the landlord
  • Potential loss of deposit
  • Court proceedings for breach of contract

Judicial termination for serious defects

The procedure for judicial termination:

  1. Document the problem: photos, expert reports, registered letters to the landlord
  2. Notify the landlord: send a registered letter describing the defects and requesting repairs within a reasonable deadline
  3. File a claim with the justice of the peace if the landlord fails to act
  4. Attend the hearing: present evidence of the defects and the landlord’s failure to remedy them
  5. Obtain a judgment: the judge can terminate the lease at the landlord’s fault

The judge may order:

  • Immediate termination without notice period
  • Damages to the tenant (moving costs, temporary housing)
  • Return of the deposit without deduction
  • Reimbursement of rent paid during the period of unfitness
Never stop paying rent

Even if the property is clearly unfit, never stop paying rent without a court order. The justice of the peace can retroactively reduce or cancel rent, but unilateral non-payment weakens your position and may be used against you.

Uninhabitability orders

If the municipal authorities issue an official uninhabitability order, the consequences are different:

  • The lease is suspended for the duration of the order
  • The tenant does not owe rent during the suspension
  • If the situation is permanent, the lease may be terminated by law
  • The landlord may be required to rehouse the tenant or pay compensation
  • The tenant can seek damages from the landlord for the inconvenience

This is the only situation where the tenant can leave without going through the justice of the peace. The uninhabitability order itself constitutes the legal basis for departure.

Regional specifics

Brussels-Capital Region

The Ordinance of 27 July 2017 provides a framework for uninhabitability decisions by the DIRL (Regional Housing Inspection). The Brussels Housing Code sets specific habitability standards.

Wallonia

The Decree of 15 March 2018 empowers mayors to issue uninhabitability orders. The Walloon Housing Code provides detailed habitability standards.

Flanders

The Flemish Housing Rental Decree of 9 November 2018 provides that Wonen Vlaanderen can inspect properties and declare them unfit. An unsuitability or uninhabitability declaration terminates or suspends the lease.