Fire risk assessments are a legal requirement for most non-domestic and residential buildings. But the rules are not the same for every building, and for those under 11 metres in height, there are specific considerations that building owners and responsible entities need to understand.
Smaller buildings are often assumed to present lower risk. That assumption is not always correct, and it does not change the legal obligations that apply. Fire safety compliance is a requirement regardless of building height, and understanding what a fire risk assessment for a sub-11 metre building should cover is the starting point for meeting it.
What the Law Requires
The Regulatory Reform (Fire Safety) Order 2005 requires that a fire risk assessment is carried out for all non-domestic premises. For residential buildings, the picture has evolved significantly since the Building Safety Act 2022 came into force.
For buildings under 11 metres, the obligations differ from those applying to higher-risk buildings. The Building Safety Act’s more stringent requirements around registration, safety cases, and resident engagement apply to residential buildings above 18 metres or seven storeys. However, the duty to carry out and maintain a fire risk assessment still applies to buildings under 11 metres where there are communal areas or shared spaces.
The responsible person for the building is legally required to ensure the assessment is carried out by a competent person, that it is kept up to date, and that any actions identified within it are addressed within appropriate timescales. Having an assessment in place is only the beginning.
What a Fire Risk Assessment for a Building Under 11 Metres Should Cover
A fire risk assessment for a smaller residential or commercial building should identify all fire hazards present within the building, evaluate the risk those hazards pose to occupants and visitors, and set out practical recommendations to reduce risk and improve safety and compliance.
For buildings under 11 metres, the assessment should pay particular attention to means of escape, fire detection and warning systems, emergency lighting, signage, and the condition of any fire doors within the building. Where communal areas exist, the compartmentation between those areas and individual occupancies is also relevant.
The output should be a detailed, actionable report. Not a document that lists hazards in vague terms and offers no practical guidance on how to address them. The responsible person needs to be able to take the findings of the assessment and translate them into a clear programme of action.
Isoler provides fire risk assessments for non-complex buildings up to 11 metres in height, delivered by qualified and competent professionals in line with current legislation and British Standards guidance. Find out more on our fire risk assessment up to 11m service page.
Buildings Under 11 Metres and External Wall Risks
For buildings under 11 metres with cladding, there is an additional consideration. The Cladding Safety Scheme has extended its reach to smaller residential buildings, with new funding available for eligible buildings under 11 metres in England.
Where a building has an external wall system that may present fire safety risks, a Fire Risk Assessment of External Walls may be required alongside the standard fire risk assessment. These are distinct assessments with different scopes, and understanding which applies to your building is an important first step.
Our post on FRAEW assessments and the Cladding Safety Scheme explains how external wall assessments connect to the funding scheme and what responsible entities need to consider before making an application.
What Happens After the Assessment?
Receiving a fire risk assessment report is not the end of the process. The findings need to be acted on, and the responsible person is accountable for ensuring that happens within appropriate timescales.
High-priority findings require urgent attention. Lower-priority items should be addressed as part of a planned programme of works. In either case, the actions identified in the assessment need to be tracked, completed, and recorded. A fire risk assessment that sits in a drawer with its findings unaddressed is not compliance, it is documented liability.
Where the assessment identifies passive fire protection deficiencies, such as fire stopping issues or concerns about the building’s compartmentation, further specialist surveys may be needed to establish the full picture. Our guide on what happens after a fire risk assessment covers the key steps building owners and responsible entities should take once findings are in hand.
The Importance of Competence
The quality of a fire risk assessment depends entirely on the competence of the person who carries it out. This is not just a matter of best practice, it is a legal requirement. The responsible person must ensure the assessment is carried out by someone with the knowledge, training, and experience to identify hazards accurately and make sound recommendations.
For buildings under 11 metres, the temptation can be to treat the assessment as a box-ticking exercise and opt for the cheapest provider. That approach creates risk. An assessment that misses significant hazards, or that makes recommendations that do not reflect the actual condition of the building, gives the responsible person a false sense of security.
Competence in fire risk assessment means understanding how fire behaves, how buildings perform under fire conditions, and how the regulatory framework applies to the specific building being assessed. It also means producing a report that is clear, accurate, and genuinely useful as a tool for managing the building’s fire safety.
Connecting Fire Risk Assessment to the Wider Compliance Picture
A fire risk assessment is one element of a building’s overall fire safety strategy. It does not exist in isolation. The findings of an assessment should connect to the condition of the building’s passive fire protection, its fire doors, its compartmentation, and any other measures that contribute to keeping occupants safe.
For building owners and responsible entities who want a comprehensive picture of their building’s compliance position, our compliance professional services offer independent expertise across the full range of fire safety and building integrity requirements. And for buildings where passive fire protection concerns have been identified, our passive fire stopping and compartmentation surveys provide the detailed, evidence-based assessment needed to establish what remediation is required.
If you manage a building under 11 metres and want to ensure your fire risk assessment is carried out to the right standard by a competent professional, get in touch with the Isoler team.
