What Changed in BS 9792:2025 for HMO Landlords

If your HMO fire risk assessment was done before 2025, there's a good chance it's out of date. BS 9792:2025 — the British Standard that sets out how fire risk assessments should be conducted in residential premises with common areas — came into force in 2025, replacing the 2022 version. It's the most significant update to fire risk assessment methodology for HMOs in years.

FRASafe is built specifically to the 2025 standard. Here's what changed, why it matters for you as an HMO landlord, and what you should do about it.

First — What Is BS 9792 and Why Should You Care?

The Regulatory Reform (Fire Safety) Order 2005 (RRO 2005) requires your fire risk assessment to be "suitable and sufficient" — but it deliberately doesn't tell you exactly how to do it. That's where British Standards come in. BS 9792 is the authoritative guidance on how to conduct a fire risk assessment for premises like HMOs that have common areas.

Here's why this matters practically: if your assessment ever gets scrutinised — by a council licensing officer, by a fire service inspector, or in a legal dispute — compliance with the current published standard is the benchmark they use. An assessment that doesn't reflect BS 9792:2025 may be treated as insufficient, even if it was perfectly fine when it was done.

One thing that trips people up: BS 9792 defines four different assessment types, from a Type 1 visual inspection of common areas to a Type 4 intrusive survey covering individual rooms. Understanding which type your HMO actually needs should be your starting point before commissioning or doing any assessment.

What Actually Changed in BS 9792:2025?

1. Sleeping Risk Gets Much More Attention

This is genuinely important — don't skip this bit. The 2025 standard puts far greater emphasis on the risk posed by sleeping occupants. HMOs by definition have people asleep on the premises, and that significantly raises the stakes if a fire breaks out. The updated standard gives much more detailed guidance on how to factor sleeping risk into your overall risk rating and into your decisions about fire detection systems.

In practice, this means a box-ticking approach to fire detection won't cut it. The assessment needs to demonstrate that the alarm system is appropriate for the specific sleeping risk in your property.

2. Fire Door Assessment Is Now More Prescriptive

BS 9792:2025 gives specific, detailed guidance on how fire doors should be checked — intumescent strips, smoke seals, door closers, frame integrity, gaps. This reflects hard-won enforcement experience: poorly fitted fire doors have been a direct cause of fire spread in HMO fires. The standard essentially says "vague is no longer good enough."

3. Updated Means of Escape Methodology

The 2025 standard tightens up the criteria for assessing escape routes, with clearer benchmarks for travel distances, corridor widths, and what counts as adequate in older and converted properties. This matters because most HMOs are exactly that — older terraced houses or converted flats where escape routes weren't designed with fire safety in mind.

4. Vulnerable Occupants Must Be Properly Documented

The standard now includes explicit guidance on identifying and recording vulnerability factors among your tenants — mobility issues, sensory impairments, or anything else that might affect their ability to respond to an alarm or get out safely. For HMOs with mixed or transient occupancy, this is an area where previous assessments often had gaps.

5. The Fire Safety (England) Regulations 2022 Are Built In

BS 9792:2025 explicitly cross-references the duties from the Fire Safety (England) Regulations 2022 — including the requirements for quarterly fire door checks in buildings with three or more storeys. A 2025-standard assessment treats these as part of the same framework, not a separate obligation bolted on afterwards.

What Does This Mean If Your Assessment Is Already Done?

The honest answer is: you should review it. The RRO 2005 requires you to review your fire risk assessment when you have reason to suspect it may no longer be valid, or when there's been a significant change. A new British Standard is exactly that kind of trigger.

Councils are increasingly familiar with BS 9792:2025 and some are already querying older assessments — particularly around fire door checks and sleeping risk. If your assessment was produced to the 2022 or earlier standard, and your council asks about it, you want a current document to point to.

Does FRASafe Comply with BS 9792:2025?

Yes — it was built to the 2025 standard from the ground up. Every question in the assessment maps directly to the methodology BS 9792:2025 prescribes, and the PDF report it produces is structured the way the standard requires. It's the first online HMO fire risk assessment tool built specifically to the 2025 standard.

If your existing assessment is out of date, FRASafe is genuinely the smartest way to get a current, compliant document without paying hundreds of pounds for a consultant to redo it. Free to complete, £45 for the council-ready PDF.

The Bottom Line

BS 9792:2025 raises the bar on sleeping risk analysis, fire door checks, means of escape evaluation, and documenting vulnerable tenants. If your assessment predates 2025, review it. If you're doing a new one, make sure it's built to the current standard — not the last one.