Tenant Rights: Algorithmic Bias 2025 in Germany

Discrimination & Equal Treatment 3 min read · published September 07, 2025

Automated decision systems now affect the housing market and tenancy relationships in Germany. As a tenant, you should know when algorithmic bias may occur and what rights you have, for example in discrimination during housing applications, automated rent adjustments or eviction-related decisions. This guide explains in plain language which legal foundations are relevant, which evidence helps, and which practical steps to take — from documentation to submitting forms and filing a claim at the local court. The goal is to give you concrete actions so you can spot discrimination, object to it and, if necessary, pursue legal remedies.

What is Algorithmic Bias?

Algorithmic bias refers to systematic distortions in automated decisions. In housing allocations or scoring processes, this can lead to certain applicant groups being rated worse. Such distortions can indirectly violate equality principles or reinforce existing disadvantages. Relevant are the landlord's obligations under the German Civil Code (BGB), e.g., duties for proper contractual performance and protection against inadmissible disadvantage.[1]

Automated decisions can amplify discrimination even without malicious intent.

When does it affect tenants?

Typical situations include automated selection procedures for applications, algorithmically controlled rent adjustments or automatic checks prior to eviction. Systems that prioritize repair requests can also disadvantage certain apartments.

  • Automated housing applications (tenant rating).
  • Rent adjustments or utility bill checks (rent).
  • Prioritization of repairs and maintenance (repair).
  • Automatic dunning or eviction decisions (form).
Document exact times and contents of automatic notices.

Rights and legal basis

Important are the civil law foundations in the BGB and the civil procedure rules for court actions. For tenancy disputes the local court (Amtsgericht) has jurisdiction in the first instance, the regional court (Landgericht) for appeals, and the Federal Court of Justice for precedent questions.[1][2] As a tenant you can request disclosure of decision criteria, object to unfair treatment, and, where appropriate, demand injunctive relief or damages.

How to react concretely

Proceed systematically: collect evidence, request disclosure in writing, observe deadlines, and file a claim at the competent local court if needed. You can find forms and procedures on judiciary websites.

  • Collect emails, screenshots and timestamps as evidence (evidence).
  • Request written disclosure of algorithmic criteria from the landlord (form).
  • Contact local tenant advice or the competent local court for procedural guidance (contact).
Keep all original messages and screenshots for at least two years.

Forms and templates

There are official forms or templates for various steps, which you can use as follows:

  • Claim form (model statement for the local court): Used when you file an eviction claim or a claim for payment; attach evidence and state your precise claim (form).[3]
  • Disclosure request (written demand): Use a written letter to demand disclosure of decision criteria; include specific dates and a deadline (form).
File claims and objections within statutory deadlines to avoid losing rights.

FAQ

Can an algorithm serve as a reason for eviction?
No, an algorithmic decision alone is not automatically sufficient; the landlord must provide a comprehensible justification and the decision can be reviewed.
Which evidence is useful?
Emails, screenshots of rating times, comparative data and witness statements are very helpful.
Where do I file a claim if I am disadvantaged?
Tenancy disputes are generally filed at the competent local court (Amtsgericht) in the first instance.

How-To

  1. Collect all relevant evidence: emails, screenshots, timestamps and witness statements.
  2. Send a formal disclosure request to the landlord with a deadline.
  3. Contact tenant advice or the competent local court for initial procedural advice.
  4. If necessary, file a claim at the local court and present your documentation.

Help and Support / Resources


  1. [1] §535 BGB - Inhalt und Hauptpflichten des Mietvertrags
  2. [2] Zivilprozessordnung (ZPO) - Verfahrensregeln
  3. [3] Justizportal - Formulare und Gerichte
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Germany

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.