Tenant Rights with Smartlocks and Transponders in Germany

Privacy & Landlord Entry Rights 3 min read · published September 07, 2025
Many tenants in Germany wonder whether a landlord may install a smartlock or a transponder for access control and under which conditions access may be permitted. This guide clearly explains tenants' and landlords' rights and duties, how deadlines for allowing or refusing access look, which privacy aspects to consider and which proofs or forms are helpful. You will receive practical action steps for communication, documentation and, if necessary, legal steps before the local court. Concrete examples show how to calculate deadlines and which local courts or state authorities are responsible so you as a tenant can act safely and informed. At the end you will find sample forms and tips for collecting evidence.

What tenants should know

Landlords have obligations to maintain the rental object under tenancy law; on the other hand there are restrictions when it comes to entering privately used rooms. As a rule: without a contractual agreement or explicit consent the landlord may not arbitrarily interfere with the apartment. For the legal classification, the rules of the BGB are central.[1]

In most cases the landlord needs consent or a contractual agreement.

Allowing smartlocks & transponders

Smartlocks or transponders change how access is regulated technically. If the landlord plans access, they must clearly state purpose, scope and deadlines. Technical measures must not systematically process personal data without a legal basis; BGH decisions can be relevant for privacy questions.[3]

  • Request written information on purpose, scope and deadlines.
  • Insist on a written contractual agreement or addendum.
  • Document all access attempts, logs and authorization lists precisely.
  • Require technical measures to minimize personal data.
Respond within stated deadlines, otherwise you may lose rights.

Forms and templates

There is no special nationwide form for consent to smartlocks; for court or administrative steps the usual templates and forms are relevant.[4]

  • Lawsuit / Complaint (civil claim under the ZPO) — if the landlord acts without legal basis; example: request cessation in writing and submit communication logs with the complaint.
  • Application for an injunction — for urgent cases when immediate protection is necessary; submit evidence of urgency.
Document all access attempts and communications thoroughly.

FAQ

May the landlord install a smartlock without my consent?
Usually not. Without explicit agreement or a clear justification, tenants' privacy rights must be respected; consent or a contractual arrangement is the norm.[1]
How quickly must I respond to a landlord's request?
The deadline depends on the notice. Respond promptly in writing and request a set deadline if unclear; missing deadlines can have legal consequences, especially in court proceedings.[2]
Which authority can help with disputes?
For tenancy disputes the local court (Amtsgericht) is often competent in the first instance; more complex legal questions go to the regional court (Landgericht) or the Federal Court of Justice (BGH).[3]

How-To

  1. Check the landlord's letter immediately and note any deadlines and requested measures.
  2. Request a written addendum specifying purpose, scope and deletion deadlines of access rights.
  3. Document all contacts, access logs and technical details as evidence.
  4. If no agreement is possible, file a lawsuit at the competent local court or apply for an injunction.

Key takeaways

  • Without consent or contractual basis the landlord cannot force access at will.
  • Written agreements and thorough documentation strengthen your court position.
  • In urgent cases an injunction may be necessary.

Help and Support / Resources


  1. [1] Bürgerliches Gesetzbuch (BGB) §§ 535–580a
  2. [2] Zivilprozessordnung (ZPO)
  3. [3] Bundesgerichtshof (BGH) – Startseite
  4. [4] Bundesjustizportal – Formulare
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.