Alteration and fit-out guide

Fire risk assessment after renovation or building work

Renovation can change hazards, escape, compartmentation, occupancy and fire-protection systems. Building-control approval and contractor handover information do not replace the responsible person’s duty to review and revise the operational fire risk assessment.

Reviewed: 22 July 2026Guidance: EnglandReading time: approximately 8 minutes

Review duty

Renovation is a common significant-change trigger

Article 9 requires the assessment to be reviewed regularly and where there is reason to suspect it is no longer valid or there has been a significant change in the matters to which it relates. Refurbishment, fit-out, extension, conversion and change of use can all meet that test.

The scale of the review should reflect the effect of the work. Redecoration may require only confirmation that escape routes, signs and fire doors remain unaffected. Replanning floors, adding bedrooms, penetrating compartment walls or changing an evacuation strategy can require a new inspection and substantial revision.

  • Change of layout, travel distances or exit capacity
  • New occupancy, sleeping use or vulnerable people
  • Altered alarms, emergency lighting or smoke control
  • New doors, walls, ceilings, risers or service penetrations
  • Changes to external walls, balconies or roof systems
  • Temporary construction hazards or phased occupation

Construction phase

Manage fire risk before the project finishes

Building work can temporarily increase ignition sources and combustible waste while disabling alarms, doors, escape routes or compartmentation. The occupied-premises responsible person and contractors must coordinate their controls and emergency arrangements.

Review the FRA before work starts and at meaningful phases. Hot work, temporary electrical supplies, hoarding, storage, security, alarm isolations and partial occupation need explicit controls. If an escape route or critical system cannot remain available, decide whether occupation can safely continue.

01

Plan

Identify fire-safety-critical work, interfaces and temporary arrangements.

02

Coordinate

Define responsibilities between client, occupiers, principal contractor and other dutyholders.

03

Control ignition

Manage hot work, temporary power, charging, smoking and arson exposure.

04

Protect escape

Keep routes, exits, signs and emergency lighting usable or provide justified alternatives.

05

Manage impairments

Authorise, communicate and time-limit alarm, sprinkler, smoke-control or door impairments.

06

Inspect phases

Check concealed fire stopping and other critical work before it is covered.

Legal interfaces

Building-control approval is not an operational FRA

Building Regulations govern building work and technical compliance. The Fire Safety Order governs the ongoing management of fire risk in occupied premises. The processes inform one another but neither automatically discharges the other.

For relevant work, Regulation 38 requires fire-safety information to be given to the responsible person by completion or occupation. The handover should describe the design and operation of fire-safety measures clearly enough to support management, maintenance, future alteration and the FRA.

ProcessMain questionTypical evidence
Building controlDoes the building work comply with applicable Building Regulations?Plans, specifications, inspections and completion documentation.
Regulation 38 handoverHas useful fire-safety design and operational information reached the responsible person?Fire strategy, system descriptions, cause-and-effect, drawings and maintenance information.
Fire risk assessmentAre people adequately protected in the premises as actually occupied and managed?Site inspection, occupancy and management evidence, findings and action plan.

Completion evidence

What the responsible person should collect and verify

Do not rely on a completion certificate as a substitute for the underlying information. Obtain final, not tender-stage, documents and reconcile them with the as-built premises. Commissioning confirms that a system passed defined tests; it does not prove that every fire-safety measure or operational arrangement is suitable.

Where work affected compartmentation or concealed construction, retain location-specific evidence and inspection records. The FRA should state what could not be verified and whether further survey or opening-up is proportionate.

  • As-built layouts and current fire strategy
  • Building-control approval and completion information
  • Regulation 38 fire-safety information
  • Alarm, emergency-lighting and smoke-control commissioning
  • Fire-door schedules and inspection evidence
  • Fire-stopping locations, products, photographs and installer records
  • Updated evacuation plan, signage and staff instructions
  • Outstanding defects, limitations and planned completion dates

Before reoccupation

Complete a structured post-work review

The assessor should compare the former assessment, design intent, approved changes and actual installation. Inspect affected escape routes, doors, compartment lines, systems, signs and management arrangements. Reassess people at risk and ensure the emergency plan matches the new layout and occupancy.

Do not wait for the next routine review where the change is material. Record the revised FRA, close urgent actions before occupation where necessary, brief staff and residents, and schedule any follow-up inspection after the building has settled into its new use.

01

Compare

Identify exactly what changed from the previous FRA and fire strategy.

02

Inspect

Verify the as-built condition and interfaces, not just the paperwork.

03

Test evidence

Review commissioning, maintenance baselines and outstanding defects.

04

Update people

Revise occupancy, assistance needs, training and evacuation arrangements.

05

Record

Issue a dated revision with limitations and a prioritised action plan.

06

Monitor

Check snagging, behavioural change and emerging risks after occupation.

Apply the guidance

Connect the requirement to your premises

Use a property-specific guide for the risks and management questions relevant to your building, or explore the local London and Surrey assessment pages.

01Property guides02Location guidance03Assessment quote

Frequently asked questions

Fire risk assessment after renovation or building work FAQs

Do I need a new FRA after every renovation?

Not necessarily a completely new report after minor work, but the existing assessment must be reviewed. If the work materially affects hazards, people, layout, escape, systems or fire-resisting construction, it should be revised and may require a new site inspection.

Does a building-control completion certificate replace an FRA?

No. Building control addresses the building work against applicable regulations; an FRA examines life safety in the premises as actually occupied and managed.

Who should update the FRA after a tenant fit-out?

The responsible persons whose areas or duties are affected must cooperate. Depending on the lease and control, this may include the employer or tenant, landlord, managing agent and other occupiers.

What is Regulation 38 information?

It is fire-safety information required to be handed to the responsible person for relevant building work so the building can be operated and maintained safely. Its extent should reflect the complexity of the building and work.

Can the building stay open during refurbishment?

Only if the risks and temporary arrangements are adequately controlled. Loss of escape, alarm, compartmentation or other critical measures may require areas—or the whole premises—to be taken out of use.

London and Surrey support

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Sources and limitations

Guidance reviewed 22 July 2026

This page provides general information for England. It is not legal advice or a building-specific assessment. Fire Safety Services is independent and is not affiliated with the Government, enforcing authorities, BAFE, NFRAR or IFSM.

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