Tenant Rights for Smartlocks & Transponders in Germany

Privacy & Landlord Entry Rights 3 min read · published September 07, 2025
More and more apartments in Germany are being fitted with electronic locking systems such as smartlocks or transponders. For tenants this raises questions about privacy, landlord access rights and how to handle replacements or retrofits by the property manager. This article explains in a clear, practical way what rights tenants have, when a landlord may request access, how to document interventions and which legal bases apply. I also describe concrete steps: how to check consents, how to log entries and which deadlines apply so that you as a tenant can protect your privacy while acting in accordance with the law. At the end you will find a short FAQ, a step-by-step guide and official sources.

What is allowed?

In principle, tenancy law and the landlords duties regulate the permissibility of access and technical changes; among other things, the duties from the BGB (§§ 535580a) are decisive.[1] Simple entry with a landlord-installed smartlock is only permitted if contractually agreed or explicitly consented to; otherwise it is usually only permissible in emergencies. For serious interventions a court decision may be necessary, for example in eviction actions or disputes about access rights under the rules of the ZPO.[2]

Detailed documentation increases the chances of success in disputes.

Concrete rights and obligations

It is important that tenants protect their privacy while observing deadlines and formal steps.

  • Observe deadlines: Respond within set deadlines, for example to written access notices.
  • Report defects: Report technical problems or unauthorized access immediately in writing.
  • Collect evidence: Take photos, save log entries and messages.
  • Written communication: Request access rules and consents in writing.

What can tenants do?

If you suspect a landlord is obtaining access unlawfully or smartlock features are infringing your privacy, document the incident, request an explanation and, if necessary, a contractual arrangement. Use official templates, check your lease clauses and consider legal action such as applying for legal aid or seeking court advice; official forms and information are available from the competent ministries and courts.[3]

Keep all messages and photos stored together.
  • Secure evidence: Immediately save log extracts, photos and emails.
  • Notify the landlord in writing: Request clarification and a contractual rule.
  • Respect deadlines: Submit responses and objections on time.
  • Consider legal steps: If necessary, file a claim at the local court.

FAQ

May the landlord enter with a smartlock without consent?
No, the landlord may not simply enter without a contractual basis or urgent emergency; otherwise this is usually an intrusion into privacy.
Do I have to accept retrofit with smartlocks as a tenant?
Only if there is a binding agreement in the lease or you voluntarily consent; in principle structural changes and interventions in the rented property must be agreed.
What to do in case of unlawful access by the landlord?
Document the incident, inform the landlord in writing, demand cessation and consider legal action if necessary.

How-To

  1. Secure evidence: Save photos, log entries and written communication.
  2. Notify in writing: Inform the landlord by email or letter and set a deadline.
  3. Observe deadlines: Respond or file objections within the deadline set.
  4. Consider legal recourse: File a claim at the local court or apply for legal aid.

Key Takeaways

  • Your privacy is protectable and access without basis is usually unlawful.
  • Careful documentation is central for successful complaints.
  • Act promptly and respect deadlines to secure your rights.

Help and Support


  1. [1] Bürgerliches Gesetzbuch (BGB) §§ 535–580a
  2. [2] Zivilprozessordnung (ZPO)
  3. [3] Bundesministerium der Justiz und für Verbraucherschutz (BMJ)
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.