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EXISTING BUILDINGS & UPDATED FIRE STRATEGIES

Retrospective fire strategies for existing buildings

If your building has no reliable fire strategy, or the one you have no longer reflects the layout, use or fire precautions, ESI can build a clear, current strategy around the building as it actually stands today.

We bring together the available drawings, records and current fire safety arrangements so you have a coherent document that explains the building's fire safety approach, what can be evidenced and where further clarification may be needed.

✓ Existing-building focused
✓ Available records reviewed
✓ Annotated drawings where relevant

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Tell us about the building

Send us the basics. We will review the project stage, likely scope and next step.

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    Professional memberships, registrations and industry credentials

    The basics

    What is a retrospective fire strategy?

    A fire strategy sets out the fire safety design and approach for a building. For a new project, that work is normally developed alongside the design. A retrospective fire strategy starts from a different place: the building already exists.

    It is useful where no reliable strategy can be found, or where the existing strategy no longer reflects how the building is actually laid out and used. The aim is to bring the available information together into a clear picture of the building's current fire safety approach.

    That can include means of escape, structural fire resistance, compartmentation, fire detection and alarm, emergency lighting, fire service access and the management arrangements that support the building once occupied.

    Important: a retrospective fire strategy is not the same as a fire risk assessment. The strategy explains the building's fire safety design basis. The fire risk assessment looks at the risks and management of the occupied building.

    Talk through your building
    Historic_heritage_building

    Understanding the building as it exists today

    WHEN IT HELPS

    When might you need a retrospective fire strategy?

    Existing buildings often have a long history of alterations, changing use and incomplete records. A retrospective strategy can give owners, managers and project teams a clearer basis to work from.

    NO RELIABLE STRATEGY

    No strategy can be found

    You need a clear record of the building's fire safety approach, but the original strategy is missing or was never handed over.

    OUT OF DATE

    The strategy no longer matches

    The layout, use or fire precautions have changed significantly since the existing strategy was prepared.

    TRANSACTION

    Sale, refinancing or insurance

    You want a clearer, current fire safety basis ahead of a sale, refinancing exercise or insurance renewal.

    REFURBISHMENT

    Before major works

    A refurbishment or fit-out is being planned and the project team needs to understand the existing fire safety basis before changing it.

    CHANGE

    The building or use has changed

    Occupancy, layout or use has moved on and the old documentation no longer gives the full picture.

    NEW OWNERSHIP

    The building has changed hands

    You have inherited a building and need to understand what the existing fire safety arrangements were intended to achieve.

    Not sure whether you need a retrospective strategy?

    Tell us what documents you have and what has changed. We will advise on the most sensible next step.

    Ask ESI

    WHAT WE REVIEW

    Building the strategy around the real building

    A retrospective strategy needs to connect the available records with the building as it stands today. The scope is agreed around the property, the information available and what the strategy needs to achieve.

    Building use and occupancy

    How the building is actually used today.

    Means of escape

    Routes, travel distances and exit arrangements.

    Structural fire resistance

    The fire-resisting basis of the structure where it can be established.

    Compartmentation

    How fire and smoke are intended to be contained.

    Fire detection and alarm

    The system provision relevant to the building and use.

    Emergency lighting

    Provision supporting escape routes and key areas.

    Fire service access

    Access, facilities and firefighting provisions.

    External fire spread

    Relevant separation and external fire safety considerations.

    Management arrangements

    How the design assumptions are supported in use.

    Existing drawings and records

    Available plans, reports and historic information that help establish the current basis.

    Get a scope of work

    A DIFFERENT STARTING POINT

    Retrospective strategy versus new-build strategy

    The purpose is similar, but the evidence and constraints are different. A retrospective strategy has to work with the building that already exists rather than a design that can still be changed freely.

    Comparison Retrospective fire strategy New-build fire strategy
    Starting point An existing, usually occupied building. A developing design or construction project.
    Information available Current layout, available drawings, previous reports and what can be established from the building. Architectural drawings, specifications and coordinated design information.
    Main challenge Reconciling historic information with what exists now. Coordinating fire safety before the design is fixed or built.
    What it gives you A clearer current fire safety design basis for the existing building. A fire safety design basis for the project as it develops.
    Drawings Annotated drawings where relevant and where suitable base information is available. Annotated strategy drawings coordinated with the design team.

    Not sure which strategy your building needs?

    Tell us what you already have and what has changed. We’ll help you understand whether you need a retrospective strategy, an update to an existing strategy, or another route.

    Ask ESI

    WORKING WITH WHAT EXISTS

    What if the drawings or records are incomplete?

    That is common in older buildings and buildings that have changed hands. Start by sending us what you have. We can review the available drawings, reports and other fire safety information and agree what further information is needed for a sensible scope.

    A retrospective strategy should not pretend that every historic design decision can be reconstructed perfectly. The useful outcome is a clear document that distinguishes what can be established, what assumptions need to be understood and what may need further investigation.

    If the building is also being refurbished, this work can give the design team a stronger starting point before new changes are introduced.

    The strategy should reflect the building as it stands today, not simply reproduce assumptions from drawings that may no longer match reality.

    Send us what you have
    Focused Office Document Review

    Reviewing existing drawings, reports and records

    The process

    What happens when ESI prepares a retrospective strategy?

    We keep the process practical, starting with what already exists and building towards a strategy that gives owners, managers and project teams a clearer basis to work from.

    01

    Initial discussion

    We talk through the building, why the strategy is needed and agree the right scope.

    02

    Review existing information

    We review the drawings, reports and other relevant fire safety information you can provide.

    03

    Review the current building

    We consider how the building is laid out and used now, and how the current arrangements fit together.

    04

    Develop the strategy

    We bring the available evidence into a coherent fire safety design approach for the existing building.

    05

    Report and drawings

    You receive the written strategy and annotated drawings where relevant.

    06

    Liaison and support

    We explain the strategy clearly and support relevant project or stakeholder queries where agreed.

    Ready to get started?

    Get a quote in a couple of minutes, no obligation.

    The deliverable

    What will you receive?

    At the end of the process, you will receive a clearly written fire strategy document tailored to the existing building. Depending on the agreed scope, this can include:

    Description of the building and its current use

    Fire safety design approach for the existing building

    Annotated drawings where relevant

    Means of escape and travel distances

    Compartmentation and structural fire protection

    Fire detection, alarm and emergency lighting provision

    Fire service access and firefighting facilities

    Management arrangements for the occupied building

    For assessments and surveys, this becomes a live asset register you can build on over time, rather than a one-off document that goes out of date the moment something changes.

    See what's included in your quote
    ESI: Fire Safety

    RETROSPECTIVE FIRE STRATEGY

    Sample only

    Retrospective Fire Strategy

    Existing building · fire safety design basis · annotated information

    1. BUILDING AND USE

    2. FIRE SAFETY APPROACH

    3. STRATEGY DRAWINGS

    4. KEY PROVISIONS

    FIRE STRATEGY OR FIRE RISK ASSESSMENT?

    Most existing buildings need the two documents for different reasons

    A fire strategy explains the fire safety design and approach for the building. A fire risk assessment looks at the fire risk in a building that is occupied and in use, including how the building is managed today.

    If your retrospective strategy and fire risk assessment are both being reviewed, there is real value in making sure they tell the same story. The strategy should explain the design basis, while the assessment should reflect how that building is actually being operated.

    If the two documents conflict, it can create confusion about what the building was designed to achieve and how it should be managed in practice. Reviewing them together helps identify those gaps before they become a problem.

    Discuss your building

    Jamie Morgan

    Founder & Principal Consultant

    WHY ESI?

    Existing buildings need judgement, not a generic template

    We are a small, specialist, consultancy led team, overseen by Jamie Morgan, who is listed on the Institute of Fire Safety Managers National Fire Risk Assessors Register and holds Level 4 and Level 6 qualifications in fire risk assessment.

    Retrospective strategy work benefits from understanding both how fire safety is designed into a building and how that building is actually managed in use. Because ESI also carries out fire risk assessments, fire door work and compartmentation surveys, we can look at the strategy in the context of the wider building rather than as a standalone paper exercise.

    We explain the reasoning in plain English and keep the scope proportionate to the building, the information available and what you actually need the strategy to achieve.

    "A retrospective strategy should explain the building you actually have, not the building an old drawing says you have."

    NFRAR

    Registered fire risk assessor.

    Qualifications

    Level 4 and Level 6 fire risk assessment qualifications.

    IFSM

    Professional membership and ongoing industry engagement.

    Talk to Jamie's team

    !

    TIME-SENSITIVE REQUIREMENT

    Need a current strategy before a transaction or planned works?

    If a sale, refinancing exercise, insurance renewal or upcoming refurbishment has exposed a gap in your fire strategy information, tell us what is driving the requirement and what documents you already have. We can help you understand the right next step and scope the work appropriately.

    Common questions

    Frequently asked questions

    What is a retrospective fire strategy?

    It is a fire strategy prepared for a building that already exists, typically because no reliable strategy is available or because the existing strategy no longer reflects the building's current layout, use or fire safety arrangements.

    No. A fire strategy explains the fire safety design and approach for the building. A fire risk assessment looks at fire risk within an occupied building and how that risk is managed in practice. The two documents serve different purposes and should be consistent with each other.

    Not simply because it is an existing building. The need depends on the circumstances. It can be particularly useful where no reliable strategy exists, where the building has changed significantly, or where a current fire safety design basis is needed for planned works, a transaction or another stakeholder requirement.

    Often, yes. Send us what you have and we will advise what can be used and whether further information is needed. The scope should reflect what can reasonably be established rather than pretending missing historic information exists.

    That is one of the main reasons to review it. If the layout, use or fire safety arrangements have changed significantly, the strategy should be revisited so it still reflects the building as it stands today.

    It can be useful where those processes expose a gap in the building's fire safety information or where the existing strategy no longer gives a reliable picture. Tell us what has been requested and we can advise on the appropriate scope.

    It depends on the size and complexity of the building, the quality of the existing information, the scope of review needed and whether drawings or further liaison are required. Send us the basic details and we will put together a clear proposal.

    That depends on the complexity of the building and how much reliable information is available when we start. We can give you a realistic timescale once we have reviewed the basic project information.

    Yes, where this is included in the agreed scope. We can explain the strategy, respond to relevant queries and update the document where further information or agreed changes require it.

    Get started

    Talk to us about your existing building

    To put together an accurate quote, it helps if you can tell us what the building is, what documents you already have and what has prompted the need for a retrospective strategy.

    Do not worry if the records are incomplete or you are not sure exactly what is needed. We would rather understand the situation first and scope the work properly.

    Request a quotation

    Tell us a little about the premises and what has prompted the enquiry.

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