Smoke Detector Rules for Tenants in Germany

Safety & Emergency Protections 3 min read · published September 07, 2025

As a tenant with children, it is important to understand the smoke detector requirement and implement it in everyday life. In Germany, state building codes regulate who must install and maintain the devices; often the landlord is responsible, but tenants have cooperation duties. This article clearly explains which obligations apply to tenants and landlords, how families can meet deadlines and safety requirements, and which proofs are useful. You will receive practical steps, a template letter to request the landlord, and guidance on what to do if there is no response or in case of rent reduction. I also describe which courts are responsible and how to document evidence so that you can enforce your rights as a tenant in Germany.

What tenants and landlords need to know

The legal basis for tenancy relationships is found in the BGB, in particular regarding the duties of landlords and tenants.[1] However, the smoke detector requirement is governed by state building codes: they determine in which living spaces detectors are required and who is responsible for installation and maintenance. In many federal states the landlord installs the detectors; in some regions maintenance can be assigned to the tenant.

In most federal states, smoke detector obligations are part of the state building code.

Practical tip: Read your lease carefully; it often contains provisions on maintenance and access for installation work. If the landlord is responsible for installation, set a written deadline.

Key responsibilities

  • Installation: In many cases the landlord is responsible for mounting the smoke detectors.
  • Maintenance: Some landlords delegate regular maintenance to the tenant; check the contract clauses.
  • Documentation: Keep maintenance records and invoices to support defect claims.
  • Safety: Pay attention to the required number and placement of detectors in bedrooms and corridors.
Keep copies of all letters and dates related to installation and maintenance.

Template letter: Request for installation

Use this short template letter to request the landlord to install smoke detectors:

Dear Mr./Ms. [Landlord Name],
I hereby request that you install the legally required smoke detectors in the apartment [address] by [date, e.g. within 14 days]. Please confirm the appointment in writing and state who will be responsible for maintenance. If there is no response, I reserve the right to take further steps.

Always set a concrete deadline in requests and ask for written confirmation.

Rights if measures are not implemented

If the landlord does not respond, tenants can consider several options: a renewed written request, setting a deadline with the threat of rent reduction, or, if necessary, involving the local court to clarify the matter. Local courts (Amtsgerichte) are competent for tenancy disputes.[2] Documentation is crucial here: photos, emails, sent letters and witness statements help to support your claim.

Detailed documentation increases your chances of success in disputes.

FAQ

Who must install smoke detectors?
That depends on the state building code; usually the landlord is responsible for installation, while maintenance can be assigned to the tenant.
Can I reduce my rent if smoke detectors are missing?
A rent reduction is possible if the apartment is defective and the landlord fails to act despite a deadline; assess justification and extent individually.
Which court do I contact in case of dispute?
Tenancy disputes are heard in the first instance by the competent local court (Amtsgericht).

How-To

  1. Check the lease and the state building code to clarify responsibilities.
  2. Send the landlord a template letter with a specific deadline.
  3. Document all contacts, appointments and any missing actions with photos and emails.
  4. Consider a rent reduction or advice from the local court if there is no response.
  5. Gather evidence of installation/maintenance to enforce claims.

Help and Support / Resources


  1. [1] German Civil Code (BGB) §§535–580a
  2. [2] Federal Court of Justice
  3. [3] Federal Ministry of the Interior, Building and Community
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.