Landlord Fire Alarm Requirements in England (2026)
By Sebastian Grabowski, DC Fire & Security, Luton. Updated October 2026.
What fire alarms does a landlord in England have to fit?
Under the Smoke and Carbon Monoxide Alarm (England) Regulations 2015, as amended from 1 October 2022, a landlord must fit a smoke alarm on every storey used as living accommodation and a carbon monoxide alarm in any room with a fixed combustion appliance, gas cookers excluded. Alarms must work on the first day of each new tenancy. HMOs need a fuller, interlinked system.
What does the law require in a single let compared with an HMO?
A single household let must meet the 2022 smoke and CO alarm rules. An HMO must meet those rules too, plus an interlinked mains alarm system to the council's standard, usually based on the LACORS guide (2008).
The smoke and CO regulations set the floor for almost every rented home. HMOs sit under more law on top: the Housing Act 2004, the Management of HMOs (England) Regulations 2006, HMO licensing, and the Fire Safety Order 2005 for the shared parts.
| Single household let | HMO | |
|---|---|---|
| Smoke alarm on every storey with living accommodation | Required | Required, as part of a larger system |
| CO alarm by fixed combustion appliances | Required | Required |
| Interlinked mains alarms with backup | Not required by these regulations | Expected under LACORS and most council standards |
| Heat detection in the kitchen | Not required by these regulations | Expected under LACORS |
| Fire risk assessment | Not required for the dwelling itself | Required for the shared parts under the Fire Safety Order 2005 |
| Licence | Only under a selective licensing scheme | Mandatory for 5 or more people in 2 or more households; many councils license smaller HMOs too |
What do the 2022 smoke and carbon monoxide alarm rules say?
Four duties: a smoke alarm on each storey used as living accommodation, a CO alarm in any room used as living accommodation with a fixed combustion appliance (not a gas cooker), a check that every alarm works on the day a new tenancy begins, and repair or replacement once a fault is reported.
The Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022 came into force on 1 October 2022. They extended the rules to social landlords and widened the CO duty, which before then applied only to solid fuel appliances.
Government guidance says a hall or landing counts as a room for the smoke alarm rule, and that bathrooms and toilets count as living accommodation for the CO rule. A gas or oil boiler and a wood burner are fixed combustion appliances. A decorative fireplace that does not work is not.
- Smoke alarm: at least one on every storey with a room used wholly or partly as living accommodation
- CO alarm: in any room used as living accommodation with a fixed combustion appliance, gas cookers excluded
- Check: each alarm in proper working order on the day a new tenancy begins
- Repair: repair or replace an alarm once you are told it is faulty and it is found to be faulty
What is the fine for not having smoke or CO alarms?
Up to £5,000. If the council believes the rules are broken it must serve a remedial notice, and if the landlord does not comply within 28 days it can charge a penalty of up to £5,000.
Government guidance says the penalty applies per breach, not per landlord or per property. A landlord can ask the council to review the penalty and then appeal to the First-tier Tribunal.
For HMOs the risk is larger. A breach of licence conditions or of the HMO management regulations can lead to a much bigger civil penalty or a prosecution under the Housing Act 2004.
Does an HMO need a Grade D or a Grade A fire alarm?
Most shared houses of up to four storeys need Grade D: interlinked mains alarms with a backup battery. Five or six storey shared houses and bedsit HMOs of three or more storeys need Grade A, a system with a control panel and call points.
These grades come from BS 5839-6, and the house-by-house recommendations come from Table C4 of LACORS. They assume normal risk. Your council can ask for more where the house or its tenants carry a higher risk. Our HMO fire safety guide covers the doors, escape route and alarm together.
| Property (normal risk) | Usual system under LACORS |
|---|---|
| Single household house, up to 4 storeys | Grade D, LD3: interlinked mains smoke alarms on the escape route |
| Shared house HMO, up to 4 storeys | Grade D, LD3 plus interlinked detection in the kitchen, lounge and any cellar with a risk |
| Shared house HMO, 5 or 6 storeys | Grade A, LD2 |
| Bedsit HMO, 1 or 2 storeys | Grade D, LD2 in common areas, with heat and smoke alarms in each bedsit |
| Bedsit HMO, 3 to 6 storeys | Grade A, LD2 in common areas, with heat and smoke alarms in each bedsit |
Can a landlord use battery smoke alarms?
In a single let, yes. The 2022 regulations do not say mains or battery, and government guidance prefers sealed long-life batteries over replaceable ones. In an HMO, LACORS says battery-only alarms are not recommended.
Government guidance recommends smoke alarms that meet BS 5839-6 and CO alarms that meet BS EN 50291. Where you carry out building work such as a loft conversion, or build a new home, Approved Document B expects mains-powered smoke alarms with a standby power supply.
If a tenant is deaf or hard of hearing, a vibrating pad or flashing-light alarm may be needed.
What evidence should a landlord keep?
A dated record that every alarm worked on the day each tenancy began, and records of every fault report and repair. Government guidance suggests the tenant signs the inventory to confirm the alarms were tested and working.
If you cannot get in to check or repair an alarm, write to the tenant, offer convenient times and keep a written record of each attempt. For HMOs, keep the installation certificate, the test log and the latest service certificate, because councils ask for them at licensing and inspection.
- Tenancy start check, dated and signed by the tenant on the inventory
- Fault reports from tenants, and when each was fixed
- Make, model and expiry date of each alarm
- For HMOs: installation certificate, monthly or weekly test log, and service certificates
- Letters and notes of any visits where you could not get access
How can DC Fire & Security help landlords?
We design, install and service fire alarm systems for landlords, from single lets to HMOs, across Bedfordshire, Hertfordshire, Buckinghamshire and London.
Send us photos, the number of floors and rooms, and your council's HMO standard if you have one, and we will tell you what the property needs. We also inspect and repair HMO fire doors.
Sources
- Smoke and Carbon Monoxide Alarm (England) Regulations 2015
- Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022
- GOV.UK: Smoke and Carbon Monoxide Alarm (Amendment) Regulations 2022, guidance for landlords and tenants
- LACORS: Housing - Fire Safety, guidance on fire safety provisions for certain types of existing housing (July 2008, council copy), Table C4
- Housing Act 2004
- Management of Houses in Multiple Occupation (England) Regulations 2006
- Licensing of Houses in Multiple Occupation (Prescribed Description) (England) Order 2018
- Regulatory Reform (Fire Safety) Order 2005
- GOV.UK: Approved Document B (fire safety)
Updated October 2026 by Sebastian Grabowski, DC Fire & Security. We design, install and service fire alarm systems across Bedfordshire, Hertfordshire, Buckinghamshire and London.
Frequently Asked Questions
Do landlords have to fit smoke alarms on every floor?
Do landlords need a carbon monoxide alarm for a gas boiler?
Who tests smoke alarms during a tenancy?
What is the fine for no smoke alarm in a rented property?
Do the rules apply to lodgers?
Do HMOs follow different fire alarm rules?
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