Smartlocks & Transponders: Tenant Rights in Germany

Privacy & Landlord Entry Rights 3 min read · published September 07, 2025

As a tenant in Germany, you may face questions about access, privacy and proof obligations when smartlocks or transponders are used. This practical guide explains what documentation is useful, which deadlines you must observe and how to keep legally secure logs. I show how to record access attempts, maintenance or key handovers in writing, which forms or templates are relevant and when it may be advisable to involve tenant protection or the local court (Amtsgericht).[2] The guidance is practical, cites relevant statutes such as the BGB[1] and gives simple steps for evidence preservation, communication with the landlord and preparing possible legal action. This helps you keep control over access and data protection in your home.

What tenants should know

Smartlocks and transponders change how landlords organise access. Generally, tenancy law governs permissible access and the landlord's duties; intrusions into your privacy are not allowed without legal ground. For concrete deadlines and procedural questions, the BGB and the ZPO as rules of procedure are relevant.[1][2]

Document every access immediately in writing.

Important immediate measures

  • Record deadlines: note date, time and duration of each access (deadline).
  • Collect evidence: photos, screenshots of log entries, texts and witness names (evidence).
  • Keep written correspondence: send each request or complaint by email or registered mail and keep copies (form).
  • Protect privacy: describe which areas are private and which accesses you refuse (privacy).

If you want to inspect technical logs from the smartlock, request them in writing. Ask for specific time frames and events and demand confirmation of receipt.

A structured evidence collection makes later steps before court or with the landlord easier.

Practical templates and forms

There is no single "tenant form" for every case; however these forms are often relevant:

  • Short request for release of log data (template): state date, time and the requested period; request release within a deadline.
  • Documentation for malfunction or unauthorized access: note observations, attach photos and request a statement.
  • Payment claim (Mahnverfahren): if the issue concerns costs for repairs or access data, a payment claim may be started; information on the online payment claim is available from the Federal Office of Justice. [3]

Practical example: On 5 Apr 2023 at 10:15 you notice an unauthorized access. Record date and time, take a photo of the door and send the landlord a request for log data within 3 days with a 14‑day deadline.

Keep all responses and records unchanged and secure.

FAQ

Who may open the smartlock and when?
Only persons with a legal basis or consent may open it. Landlords need a concrete reason (e.g. emergency, authorised access for repairs) and must respect agreements without eviction.
Can I request access to log files?
Yes, you can request disclosure or information about access logs insofar as this does not violate your data protection rights. Request the data in writing and document the request.
What to do in case of repeated unauthorized access?
Document incidents, set deadlines for cessation, contact tenant protection and prepare a possible lawsuit at the local court (Amtsgericht).

How-To

  1. Record immediately: note date, time, observations and save photos (evidence).
  2. Inform the landlord in writing: send a request for information and log release with a deadline (form).
  3. Set deadlines: give clear deadlines (e.g. 14 days) and document delivery (deadline).
  4. Seek help: contact tenant protection or legal advice if there is no response (contact).
  5. Prepare legal steps: collect all evidence for a possible suit at the local court or for the payment claim (court).

Help and Support / Resources


  1. [1] Gesetze im Internet: BGB
  2. [2] Gesetze im Internet: ZPO
  3. [3] Bundesjustizamt: Online‑Mahnantrag
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.