Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants
Lawrence Webster Forrest (LWF), Fire Engineering and Fire Risk Management Consultants


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Lawrence Webster Forrest
Legion House
Lower Road

Tel: +44 (0)20 8668 8663 Fax: +44 (0)20 8668 8583

Fire Engineering Solutions

Modern building design is tending ever towards larger, more open plan concepts. This design approach requires that the normally applied prescriptive fire safety standards utilised in more traditional building designs, become restrictive in their application. Statutory design guidelines give the option for developers to move away from the prescriptive fire safety constraints and use an approach that enables engineered solutions to be applied specifically to new and existing buildings.

This approach enables the designer to take full advantage of design features and to offset one fire precaution measure with others that may positively contribute towards an aesthetically and engineered optimum solution. Existing buildings, subject to redevelopment or refurbishment, can also benefit from a fire engineered approach, the benefits here in addition to potentially reduced costs and restrictive measures, can include less intrusion particularly if the building is of a Listed or ‘fine’ nature.

Fire engineering techniques require the designer to prepare a specific design for a building taking into account the features, proposed use and occupancy of the facility. Prescriptive applied standards are general in their nature and are required to be applicable to all buildings put to a similar use. For maximisation of building potential and optimisation or even feasibility of design, the fire engineer becomes an essential advisor to the facility manager or member of the project design team.

LWF are able to undertake on your behalf:

  • Identification of rationalised potential life and property losses.
  • Analysis of fire and smoke behaviour in large or complex spaces.
  • Quantified analysis of fire risk.
  • Solutions based on objective or cost benefit analysis.
  • Fire safety measures that fully utilise and take maximum advantage of existing building features.
  • Solutions that optimise capital outlay by prioritisation.
  • Computer aided modelling for detailed scenario prediction.
  • Analysis of occupancy and populations distribution to optimise emergency evacuation procedures.
  • Determination of integrated schemes using state of the art detection and suppression.
  • Tailor-made services to address special or high risks, including special-needs occupants, security, special hazards and salvage requirements.
To discuss your requirements with one of our specialist staff, please call 
020 8668 8663.

Our Services

To discuss any of our services please call 020 8668 8663 or email

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  • Fire Engineering Design and Risk Assessment - Compartmentation & Life Safety - Part 5

    In LWF’s Fire Engineering blog series for Architects and others working in the building design business, we have been discussing compartmentation. In part 4 of this series, the ways in which compartmentation supports life safety functions in a fire situation were summarised. In part 5, we look at the ways the issue of compartmentation and life safety is covered in the national building regulations, before looking at the spread of fire. 


  • Fire Safety for Healthcare Premises - Compartmentation & Fire Hazard Rooms and Areas - Part 39

    In LWF’s blog series for healthcare professionals, the aim is to give information on best practice of fire safety in hospitals and other healthcare premises. In part 38 of this series, the importance of fire stopping the joints between fire separating elements such as walls and any openings was discussed. In part 39, we will continue in that area by looking at fire hazard rooms and areas.While most types of buildings require the protection...


  • Facilities Management & Fire Safety - Content of Fire Training - Part 13

    In LWF’s blog series for those who work in Facilities Management, or who have an interest in or responsibility for Fire Safety, we have been looking at the necessity for staff training and fire drills. In part 12 we looked at the implications of committing to fire safety training in a business or organisation in terms of time commitment. In part 13, the necessary content of the fire safety training sessions is outlined. All comprehensive...


  • Fire Engineering Design and Risk Assessment - Maintenance of Compartmentation - Part 4

    In LWF’s Fire Engineering blogs for Architects and others who work in the building design business, we have been looking at compartmentation of buildings to avoid fire spread from the compartment of fire origin to any other area. In part 3 of this series, the fire-resisting performance of elements which go into comprising a fire-resistant compartment was discussed. In part 4, we discuss how a compartment’s integrity is only as good as its ongoing maintenance,...


  • Facilities Management & Fire Safety - Staff Training & Fire Drills - Part 12

    In LWF’s blog series for those who work in Facilities Management, or who have an interest in or responsibility for fire safety, we have been looking at staff training and fire drills. In part 11 of this series, methods of training were discussed and in part 12, we will continue from that point to discuss the practicalities of who should receive training and how it should be organised.Adequate fire training should be given to...


Case Studies

The Wohl Neuroscience Institute - Fire Safety, Strategy & Engineering
Key Facts: Client: King’s Clinical Neuroscience Institute Project Manager: MACE Ltd Designers: Devereux Architects/Allies and Morrison Approximate Size: 7,400m2 Description of the Project:...

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General Bulletins

Fire - The External Risk
When we consider fire safety, our focus is normally from within, what can we do to prevent the occurrence of fire and how we can limit its damage.  Whilst this is the correct stance to take, we m...

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Technical Bulletins

Evacuation Modelling - Factor in Human Behaviour
Evacuation of buildings can be analyzed in different ways. Approved Document B (ADB) which provides guidance on meeting the requirements of the England and Wales Building Regulations with regard to fi...

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