Smoke Detectors Mandatory in Belgium: Flanders, Wallonia, Brussels
Yes, smoke detectors are mandatory in all three regions – under regional housing law, not AREI. Number, placement and start dates for Flanders, Wallonia and Brussels.
AuthorStephan BehmShort answer: yes, in all three regions
Yes, smoke detectors are mandatory in Belgium – in Flanders, Wallonia and Brussels for every home, rented or owner-occupied. The obligation sits in regional housing law, not in AREI, so start date, number and placement differ by region. Everywhere, the detector carries the CE marking and complies with NBN EN 14604.
The rules by region
| Region | Mandatory for all homes since | Minimum equipment |
|---|---|---|
| Flanders | 1 January 2020 | at least 1 detector per floor, including directly accessible basements and attics |
| Wallonia | 1 July 2006 (existing homes) | 1 detector per living level, 2 if the level exceeds 80 m² |
| Brussels | 1 January 2025 (rented homes since 1 July 2005) | detectors along the escape route from bedroom to front door |
Flanders
Every self-contained dwelling – house, apartment or studio – has at least one smoke detector on every floor. Basements and attics count if they are directly accessible or house a technical installation. In rooming houses each room also gets a detector. A detector in every room on the shortest escape route from the bedroom to the outside is additionally recommended. For rentals, the landlord buys and installs the detectors; without them there is no certificate of conformity.
Wallonia
One detector is required on each level with at least one habitable room, preferably in halls and corridors: entrance hall, landing or the room the stairs lead into. A level larger than 80 m² needs two; a single-level apartment needs one below 80 m² and two above. From four required detectors, they are interconnected or replaced by a centralised fire detection system. For rentals, the owner covers installation and replacement, the tenant the battery.
Brussels
Since 1 January 2025 the obligation covers all homes in the Brussels-Capital Region; for rented homes it has applied since 2005. Detectors go in every room on the route from the furthest bedroom to the front door. Accepted are detectors to NBN EN 14604, not of the ionisation type, with a built-in ten-year battery or mains connection. From four detectors, interconnected detectors or a central system are mandatory.
Smoke detectors and AREI: what the electrical inspection covers
AREI does not regulate smoke detectors in homes. The electrical inspection covers the electrical installation, so a missing battery-powered detector is not an AREI infringement. The dossier of a domestic installation contains the single-line diagram and situation plan (9.1.2). The situation plan shows boards, boxes, sockets, lighting points, switches, fixed appliances and sources that appear on the single-line diagram (3.1.2.3(a)).
That gives a clear distinction:
- Battery detectors are not part of the electrical installation and need not appear on the situation plan.
- Mains detectors (230 V) are fed from a circuit. As fixed appliances they appear on the single-line diagram and situation plan like any other load.
Many installers also draw battery detectors on the situation plan for information, so occupants find all safety-related devices in one place.
Maintenance and replacement
- Monthly: press the test button.
- Regularly: dust or vacuum the detector.
- After 10 years: replace it – that is its typical service life.
- When buying, look for CE marking and NBN EN 14604; in Brussels also a built-in ten-year battery or mains connection.
Planning smoke detectors in PlanElec
In PlanElec you place smoke detectors directly on the floor plan and situation plan. The self-check gives a recommendation: it flags bedrooms, hallways and staircases without a detector and – where no rooms are typed – floors without a detector. Because AREI does not require smoke detectors, this appears as a warning based on regional housing law, not as an AREI error. The scope is in What the self-check verifies.
Related articles
Sources: Smoke detectors in Flanders (Vlaanderen.be), Fire detectors in Wallonia (wallonie.be), Smoke detectors mandatory in Brussels (City of Brussels); AREI/RGIE Book 1, version 06, subsection 3.1.2.3(a) and section 9.1.2 (FPS Economy).