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Expert assessment in a rental dispute: amicable and judicial

Amicable and judicial expert assessment in a rental dispute: differences, when to use them, cost and how to prepare an assessment to protect your rights.

EH Par Edouard Hennin 2 min de lecture Mis a jour le May 28, 2026

The two types of expertise in a rental dispute

CriterionAmicable expertiseJudicial expertise
InitiativeThe parties or insurersThe justice of the peace
Cost500-1,500 EUR1,500-5,000 EUR
Timeline1-4 weeks3-6 months
Evidential valueLimited (technical opinion)Strong (taken into account by the court)
EnforceabilityOnly if both parties participateEnforceable against all parties

The expertise is an essential tool when the dispute concerns technical questions: cause of damage, condition of the dwelling, compliance, cost of restoration after the exit property inventory.

Amicable expertise

When to use it

Amicable expertise is suitable for low-stakes disputes or when the parties want to avoid court proceedings:

How to organise it

Both parties choose an approved expert (architect, engineer) or each appoints their own expert. The ideal solution is a single expert accepted by both parties.

Limitations

If one party refuses to participate or disputes the conclusions, the amicable expertise has no binding force. It will then be necessary to proceed with a judicial expertise.

Judicial expertise

The process

  1. The court appoints an expert and defines their mission
  2. The requesting party pays the deposit
  3. The expert summons the parties and examines the property
  4. Interim report + observations from the parties
  5. Final report filed at the clerk’s office
  6. The court rules on the basis of the report

Detailed cost

ItemAmount
Deposit (advance)1,000-3,000 EUR
Expert fees1,500-5,000 EUR
Ancillary costs100-500 EUR

The total court costs of a dispute with an expertise can reach 8,000-15,000 EUR (expert + lawyer + bailiff).

[!tip] Practical tip Keep all evidence (photos, letters, invoices) before the expertise. The expert will examine them and your preparation influences the outcome.

Which expertise to choose

Prioritise amicable expertise for simple, low-stakes disputes. Reserve judicial expertise for major or complex disputes. In all cases, document the property with your rental management software.

Consult the rental disputes guide and create precise leases to prevent disputes.

Verifie & redige par
Edouard Hennin
Real estate expert since 2018, Edouard supports Belgian landlords and tenants through their rental processes. He oversees the writing of every guide in collaboration with the legal team and ensures all content reflects current legislation in Brussels, Wallonia and Flanders.
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Publie May 19, 2026
Derniere verification May 28, 2026
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