
The apartment owner must install the smoke detector. In many federal states, however, the resident - i.e. the tenant - is responsible for smoke detector maintenance. So far, the smoke detector obligation has hardly been checked at all. However, if a fire breaks out and no smoke alarm is fitted, it will be expensive for the defaulting owner.
Fitting smoke alarms: Overview of the individual federal states
- Baden-Württemberg: Mandatory for existing and new buildings
- Bavaria: Mandatory for existing buildings from 2018, mandatory for new buildings
- Berlin: mandatory for existing buildings from 2020, mandatory for new buildings from 2016
- Brandenburg: not mandatory for existing and new buildings
- Bremen: Mandatory for existing buildings from 2016, mandatory for new buildings
- Hamburg: mandatory for existing and new buildings
- Hesse: Mandatory for existing and new buildings
- Mecklenburg-Western Pomerania: Mandatory for existing and new buildings
- Lower Saxony: Mandatory for existing buildings from 2016, mandatory for new buildings
- North Rhine-Westphalia: Mandatory for existing buildings from 2017, mandatory for new buildings
- Rhineland-Palatinate: Mandatory for existing and new buildings
- Saarland: mandatory for existing buildings from 2017, mandatory for new buildings
- Saxony: no obligation for existing buildings, obligation for new buildings from 2016
- Saxony-Anhalt: mandatory for existing buildings from 2016, mandatory for new buildings
- Schleswig-Holstein: mandatory for existing and new buildings
- Thuringia: Mandatory for existing buildings from 2019, mandatory for new buildings