Pre-Occupation Fire Risk Assessment: 5 Proven Checks Before Buildings Open

Pre-occupation fire risk assessment is the critical step that confirms a residential or commercial building is truly ready for people before the doors open.

When a residential or commercial building is newly built or refurbished, the temptation is to focus on snagging, commissioning and the operational readiness checklist. But from a fire safety perspective, the critical moment is earlier than many organisations assume.

A pre-occupation fire risk assessment is the point at which you test whether the building’s fire safety provisions are actually suitable for the intended use and whether they can realistically be maintained and managed once occupied. It is also the moment when gaps are cheapest and easiest to address-before people move in, before operational teams are fully established and before enforcement or insurance pressures turn a manageable issue into an expensive one.

At AL23 Safety, we undertake thorough pre-occupation fire risk assessments for newly built and refurbished residential and commercial buildings before occupation-ensuring fire prevention, protection and life safety measures are in place, fit for purpose and supported by clear, prioritised actions.

In this guide, we’ll explain what a pre-occupation fire risk assessment is, what it should cover, why it matters in UK compliance terms and how AL23 Safety approaches the work to help clients move into occupation with confidence.

What is a pre-occupation fire risk assessment?

A fire risk assessment is a legal requirement under the Regulatory Reform (Fire Safety) Order 2005 for premises within scope. In straightforward terms: you must identify fire hazards, evaluate the risk to people and implement appropriate measures to control risk to a reasonable level.

A pre-occupation fire risk assessment is simply that same core legal requirement-timed deliberately for the occupation phase.

Instead of assessing the building only after it is fully operational, a pre-occupation fire risk assessment is carried out before the building is handed over for occupation or before residents, tenants or staff move in. This timing is important because it changes what you can realistically verify:

• Fire safety systems may still be commissioning (detection, alarm, emergency lighting, smoke control where applicable).
• Construction-related interfaces (compartmentation, fire door installation quality, penetrations, services routing) may still be accessible for correction.
• Final layout and how the building will run may not yet be fully embedded in day-to-day management practices.

A good pre-occupation fire risk assessment therefore functions as an assurance mechanism. It checks the building’s provisions against the intended use and it produces an action plan that can feed directly into handover and post-occupancy management.

Why a pre-occupation fire risk assessment matters

New build and refurbishment projects are high-risk for fire safety in two main ways.

First, fire safety relies on details. Fire doors, compartmentation, seals and linings, penetrations, service routes, escape route integrity and signage all depend on correct installation and correct interfaces. Even where a design is sound on paper, practical build quality can introduce vulnerabilities.

Second, commissioning and live running are rarely synchronised perfectly. For example:

• A detection system may be installed but not yet configured and verified for the final operating mode.
• An emergency lighting strategy may be designed correctly but require testing in a completed environment.
• Evacuation arrangements can be theoretically robust but operationally impractical if corridors, doors or wayfinding elements differ from plan.

A pre-occupation fire risk assessment addresses both risks by focusing on what matters before occupation: suitability, integration and practical operability.

What a thorough pre-occupation fire risk assessment should cover

There isn’t a single tick-box template that fits every building. Your pre-occupation fire risk assessment should reflect the building type, risk profile, construction features and intended occupancy. However, a thorough assessment typically covers the following areas.

Building information and the intended use

Before walking the site, we review relevant information: plans and layouts for the final configuration, intended use of each floor or area, occupancy profiles (including vulnerable persons where applicable), management arrangements (who will be responsible once occupied) and the fire safety strategy or design intent where available.

This matters because the pre-occupation fire risk assessment is not an abstract exercise. It must evaluate risk for the way people will actually live, work or access the building.

Fire hazards and ignition sources

In a newly built or refurbished building, hazards may be lower than in an older facility-but that doesn’t mean hazards are absent. Common considerations include electrical installations and charging points (especially relevant in residential and mixed-use settings), plant and machinery areas, kitchens, waste rooms, plant rooms and service ducts and storage arrangements (including contractors’ materials during final works and what will remain post-occupation).

AL23 Safety focuses on hazards that can realistically exist at occupation, not just those evident during construction.

Means of escape and evacuation arrangements

Escape is assessed as a system, not a list: escape route width, continuity and obstruction risk, door hardware and door self-closing performance where applicable, travel distances and route complexity, fire compartment boundaries that protect escape routes, wayfinding, signage and emergency signage, emergency lighting adequacy and placement principles and the operational feasibility of evacuation and who will help whom (where relevant).

Where a building requires a specific evacuation strategy, this must be properly aligned to the fire safety measures and management capability.

Fire detection, alarm and warning systems

A pre-occupation fire risk assessment should check whether detection and alarm arrangements are appropriate to the layout and risk profile, whether devices appear correctly installed and located, evidence that the system has been commissioned and can be verified for the final configuration and integration with emergency response procedures and occupant warning.

Commissioning is not optional. A pre-occupation fire risk assessment should not assume performance, it should confirm suitability or identify actions required for verification and testing.

Compartmentation, fire doors and integrity of passive protection

Compartmentation is where many real-world failures occur. A pre-occupation fire risk assessment must evaluate fire compartment boundaries and integrity (including service penetrations), fire-stopping quality and whether penetrations have been appropriately treated and fire door installation details that affect performance-correct doors and hardware, self-closing operation where required, proper certification and marking and maintenance arrangements.

Any evidence of gaps, warping, incorrect intumescent seals or misalignment must be identified. AL23 Safety provides fire door and compartmentation survey support as part of the practical route to closing issues before occupation-when the building is still accessible and fixes are achievable.

External and internal fire spread considerations

For many building types, fire spread is influenced by external façades and cladding interfaces (where present), openings and ventilation features, risk posed by proximity between compartments or between buildings and internal linings and surfaces that influence fire development.

For complex design assurance, AL23 Safety’s in-house fire engineering capability can support performance-based aspects and strategy alignment rather than treating fire engineering as an outsourced afterthought.

Fire safety management and live-running readiness

A pre-occupation fire risk assessment must consider not only what is installed but who will manage it and how. This includes fire safety roles and responsibilities, maintenance regimes for active and passive fire protection, testing and inspection schedules, training requirements, means of communication and procedures for incidents and the content and readiness of evacuation plans and fire safety information.

Compliance is not complete when the building opens, it is complete when the measures can be sustained and managed competently.

What outputs should you expect from a pre-occupation fire risk assessment?

A strong pre-occupation fire risk assessment doesn’t just say what might be wrong-it gives you an actionable path to putting risk right.

Typically, you should expect a clear report in plain English, prioritised actions (what is urgent, what can be phased, what needs verification), identified corrective measures, inputs that support evacuation planning and management procedures where relevant and recommendations that can be fed into the handover process and the ongoing safety plan.

AL23 Safety is known for straightforward, compliance-focused advice. When something is non-compliant or unsuitable, we state it clearly and provide practical routes to putting it right.

How AL23 Safety handles pre-occupation fire risk assessments

Pre-occupation work requires pace, accuracy and coordination. AL23 Safety’s approach is built to support that reality:

• We scope the work clearly up front, agreeing what will be assessed and what deliverables you need for occupation.
• We carry out a thorough site-based assessment of fire safety measures and how they work together.
• We produce a report with prioritised, practical recommendations you can act on.
• Where issues relate to complex design or performance aspects, our in-house fire engineering capability can support a joined-up outcome rather than leaving you with disconnected recommendations.

This is particularly important in multi-disciplinary environments where contractors, designers and facilities teams are all involved. The handovers are where things slip-our model is designed to reduce that risk.

Common pre-occupation issues we see (and how they’re resolved)

While every project is different, common themes in pre-occupation fire risk assessments include:

• Compartmentation details not verified for final interfaces (for example, penetrations and service routes that require fire-stopping completion or inspection).
• Fire door issues such as incorrect door types, door alignment or hardware that compromises self-closing performance-often fixable at handover but difficult once occupation begins.
• Escape route or evacuation arrangement mismatches caused by final layout changes compared with design intent.
• Active system verification gaps where systems are installed but final commissioning evidence or configuration for intended use is not yet completed.

AL23 Safety focuses on identifying these issues early and ensuring recommendations are linked to deliverable actions, testing and verification-not just observation.

Legal compliance: how a pre-occupation fire risk assessment supports your duties

A pre-occupation fire risk assessment is a proactive way to support your ongoing duties under the Regulatory Reform (Fire Safety) Order 2005, including identifying and evaluating fire risks, implementing and maintaining appropriate fire safety measures, recording the significant findings where required, ensuring relevant people are informed and trained and reviewing and updating the assessment as circumstances change.

For newly built or refurbished buildings, circumstances change quickly. A pre-occupation fire risk assessment gives you the baseline you need at the moment it counts-and provides a structured action plan to ensure measures are fit and operational.

BAFE SP205 third-party certified assessments

Trust and assurance are crucial in fire safety. AL23 Safety’s fire risk assessments are carried out to current standards and are BAFE SP205 third-party certified, independently certificated by SSAIB.

In practical terms, that means you can have greater confidence that the assessment approach meets recognised expectations and supports defensible compliance.

Choosing the right provider for a pre-occupation fire risk assessment

When you commission a pre-occupation fire risk assessment, look for evidence of specialist competence and current standards awareness, clear prioritised reporting that helps you act quickly, practical knowledge of construction interfaces (passive protection and installation quality), ability to support complexity if the building design is performance-based and the ability to coordinate fire safety outcomes across documentation, strategy and live-running requirements.

AL23 Safety provides these capabilities in-house: health and safety, fire safety and fire engineering, working to one standard.

Next steps: get your pre-occupation fire risk assessment right

If you’re approaching handover for a newly built or refurbished residential or commercial building, a pre-occupation fire risk assessment should be part of your plan-not an afterthought.

For a straightforward, compliance-focused pre-occupation fire risk assessment delivered with practical actions, explore our services with AL23 Safety.

Start with a clear scope covering building type and intended use, occupation date and handover timelines, key systems and features (compartmentation, fire doors, alarm and emergency systems) and any known concerns from commissioning or snag lists.

Get the assessment done early enough to close findings before occupation-then manage risk properly from day one.