Executive summary: This original Wanlin Fire editorial guide explains the verified official source for Wales. It does not reproduce the source and is not legal advice. The linked publication remains authoritative.
What does the official source establish?
- Fitness-for-human-habitation requirements include mains-wired smoke alarms in rented dwellings.
- Carbon-monoxide alarms are required where the applicable conditions are met.
- Landlords must also provide required electrical-condition documentation under the Renting Homes framework.
What should a buyer, designer or integrator verify?
- Confirm whether the dwelling is rented, converted, social housing or subject to additional licensing.
- Verify interconnection, mains supply, backup arrangements and BS 5839-6 installation design.
- Check rooms with combustion appliances against current Welsh carbon-monoxide requirements.
Official source and evidence boundary
Jurisdiction: Welsh rented homes under the Renting Homes framework; other building uses require separate checks
Issuing body: Welsh Government
Official source: Read the current official publication
Reviewed by: Wanlin Fire Technical Team
Requirements and enforcement can change. Confirm current law, building use, project documentation and the competent authority's interpretation before product approval or installation.
Frequently asked questions
Is the recommendation the same as the legal minimum?
No. This page identifies both where relevant. A fire authority may recommend broader coverage than the statutory minimum.
Can a detector be selected only by certification name?
No. Confirm exact-model evidence, power, sensing technology, interconnection, acoustic performance, placement, accessibility and local documentation.
What project record should be retained?
Retain the design basis, applicable rule, model certificate, datasheet, installation plan, commissioning result and maintenance allocation.
Product-selection record
Record destination, jurisdiction, building type, occupancy, detector and alarm types, power, interconnection, accessibility, environmental limits and maintenance plan.

