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Fire Alarm Requirements for Three-Storey HMOs

Based on the risk assessment and national fire guidance.

Fire Alarm Requirements for Three-Storey HMOs Building Safety & Property Compliance

Updated October 2026 · Fraser Bond

Compliance · HMO fire safety

Fire alarms in three-storey HMOs

Grade D1mains & battery
LD2coverage
Interlinkedall floors
Riskassessment
In short: Fire safety in HMOs is set by a risk assessment, usually following the national LACORS fire safety guidance and your council's licence conditions. For a typical three-storey shared house let to individuals, councils commonly expect a Grade D1 mains-wired, interlinked alarm system to LD2 coverage: smoke alarms in the escape route on every floor and in risk rooms such as living rooms, a heat alarm in the kitchen, and often alarms in bedrooms. Larger or higher-risk HMOs may need a Grade A panel system. Expect 30-minute fire doors on bedrooms and the kitchen, a protected escape route, emergency lighting in some cases, and regular testing records.
ItemTypical expectation
Alarm gradeD1 (mains with battery backup), interlinked
CoverageLD2: escape routes and risk rooms
KitchenHeat alarm
DoorsFD30 fire doors with closers where required
TestingWeekly tests; annual service; records kept

Typical requirements

Frequently asked questions

Do I need a Grade A system?

For larger or higher-risk HMOs, sometimes; follow the risk assessment.

Who checks?

The council, as part of licensing and inspections.

Running an HMO?

Our management keeps alarms, testing and licences on track.

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