HMO Fire Statistics UK: 2026 Facts, Data & Key Insights

HMO Fire Risk: The Highest-Risk Residential Category

Houses in Multiple Occupation (HMOs) are consistently identified as the highest-risk residential property type for fire deaths and serious injuries. The combination of multiple independent occupants (who may not know each other), shared cooking facilities, multiple sleeping rooms, complex building layouts, and frequently older or converted housing stock creates a fire risk profile significantly more hazardous than standard domestic dwellings.

The regulatory response has reflected this elevated risk: HMOs are subject to more stringent fire safety requirements than other rental properties, fire rescue services have dramatically increased their audit activity of purpose-built flats and HMO premises, and fire safety prosecutions of HMO landlords are among the most numerous and severe in the enforcement caseload.

For the broader context see our Fire Statistics UK: The Definitive Guide.

Key Facts & Figures (Overview)

Why HMOs Face Elevated Fire Risk

The fire risk characteristics of HMOs are distinct from standard residential properties in several ways:

Multiple occupants with no household connection: Unlike a family dwelling where everyone knows each other's routines, HMO occupants may be strangers who cook at different times, use shared facilities without coordination, and be unaware of each other's presence during a fire emergency. This affects both the likelihood of fire starting and the coordination of evacuation.

Shared cooking facilities: Cooking is the leading cause of domestic fires — and shared kitchens in HMOs are used by multiple occupants with varying levels of fire safety awareness, at all hours of the day and night, with no single occupant taking primary responsibility for kitchen safety.

Complex building layouts: Many HMOs occupy converted Victorian and Edwardian terraced houses with multiple storeys, narrow staircases, and rooms that were never designed as sleeping accommodation. These layouts create fire compartmentation challenges and evacuation difficulties.

High occupancy density: HMOs typically have a higher ratio of sleeping occupants to escape routes than purpose-built residential buildings. During a night-time fire, the movement of multiple occupants through shared corridors and narrow staircases dramatically increases the risk of casualties.

Variable building quality: Many HMOs occupy older housing stock that was not built to modern fire safety standards. Timber floors and partition walls, single-glazed windows, inadequate fire doors, and absent or deteriorated compartmentation mean that fires spread faster than in purpose-built modern accommodation.

Lithium-ion battery fires: The growing number of occupants with e-bikes, e-scooters, and high-capacity battery devices — often charged in bedrooms or shared spaces — has introduced a new category of fast-spreading, hard-to-suppress fire risk in HMO settings.

Fire Safety Requirements for HMOs

HMO landlords in England are subject to overlapping regulatory requirements from multiple legislative sources:

The Housing Act 2004 and HMO licensing: HMOs above a certain size and height threshold require a mandatory licence from the local authority. Licence conditions specify fire safety requirements including fire detection systems, fire doors, means of escape, and fire-fighting equipment. Some local authorities operate additional licensing schemes covering smaller HMOs.

The Regulatory Reform (Fire Safety) Order 2005: Applies to the common parts of HMOs — shared hallways, stairs, kitchens, and living areas. The landlord is the Responsible Person for these areas and must conduct a fire risk assessment, implement appropriate precautions, and maintain fire safety systems.

Electrical Safety Standards (Private Rented Sector) Regulations 2020: Require five-yearly EICR testing of fixed electrical installations, with the penalty for non-compliance now up to £40,000 (from November 2025).

Smoke and Carbon Monoxide Alarm Regulations: Require working smoke alarms on every storey and carbon monoxide alarms in rooms with combustion appliances.

Prosecution Cases: HMO Landlords

HMO landlord prosecutions for fire safety failures are among the most numerous and severe in the FRS enforcement caseload:

Camden Council vs HMO landlord: A landlord of an HMO received a total fine and costs of approximately £49,000 specifically citing defective fire doors inadequate to protect means of escape.

Slough landlord: Ordered to pay over £40,000 in fines and costs for no fire risk assessment and a fire alarm system from which smoke detectors had been removed and which had no call points.

Manchester — Liaqat Malik: Ordered to pay over £18,000 in fines and costs for multiple HMO fire safety offences including no fire alarm and a locked exit door.

Suffolk — Home from Home Property Management Ltd: Fined £60,000 plus £24,750 costs, while the director received a 10-month suspended sentence and 120 hours' unpaid work for four RRO offences.

The pattern across these cases is consistent: blocked or inadequate escape routes, absent or defective fire alarms, no fire risk assessment, and locked or obstructed exit doors.

What HMO Landlords Must Do

An HMO landlord's fire safety obligations extend significantly beyond placing a smoke alarm on each floor:

Fire risk assessment: A written, premises-specific fire risk assessment carried out by a competent person, identifying all hazards and implementing appropriate control measures. In an HMO, this must specifically address the shared spaces, the cooking areas, the sleeping arrangements, and any specific risks from occupant activities.

Fire detection: A Grade D, LD2 or LD1 fire detection system (or in larger or higher-risk HMOs, a Grade A mains-powered system) depending on the building and risk assessment findings.

Fire doors: Fire-resisting doors on all sleeping rooms and kitchen doors — maintained in good order, with intumescent strips and smoke seals intact, and self-closing mechanisms functional.

Escape routes: Clear, unobstructed means of escape at all times. Locked exit doors are among the most common and most serious compliance failures.

Fire-fighting equipment: Appropriate fire extinguishers in shared areas.

Emergency lighting: In larger or higher-risk HMOs — particularly those with complex layouts.

Written by Fire Safety Experts

This guide was produced by the team at Fire Marshal Training, a UK provider of RoSPA and CPD-accredited fire safety training. For related data see our Fire Statistics UK: The Definitive Guide, Fire Deaths UK, Fire Safety Prosecution Statistics UK, and Workplace Fire Statistics UK.

Sources & References