The UK's Building Safety Act requires high-risk buildings to maintain comprehensive fire safety cases - living documents that identify hazards, mitigate risks, and establish clear accountability for building safety. This is the subject of my discussion with Chris Mayfield and Martyn Ramsden from OFR.

• Safety cases differ from fire strategies by being owned by the building's accountable person rather than consultants
• The Principal Accountable Person must take responsibility for preventing fire spread and structural failure
• Safety cases must document hazards, protective measures, and management systems
• The approach draws from lessons in high-hazard industries following disasters like Piper Alpha
• Safety cases should follow a logical structure: building description, safety management, hazard identification, safety measures, emergency procedures, and conclusions
• Bow tie diagrams help visualise threats, consequences, and barriers in a way all stakeholders can understand
• For new buildings, safety cases integrate with the "gateway" approval system
• Existing high-risk buildings (over 18m/7 stories with 2+ dwellings) must have safety cases ready for inspection
• When properly implemented, safety cases create cultural change by helping everyone understand their role in safety

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