Marta Targosz

Marta Targosz is a Chartered Fire Engineer and expert witness known for her structured, technically driven approach and disciplined analysis of complex fire safety matters. With experience across design consultancy, fire research and expert witness work, she provides clear, evidence-based opinions on technically demanding disputes, often where engineering judgement, design methodology and regulatory interpretation are under scrutiny.

Her work sits at the interface between fire safety engineering and regulatory compliance. She is regularly instructed on matters involving the Building Regulations, the Building Safety Act, PAS 9980 assessments and fire strategy implementation. In these cases, design assumptions, risk assessments and engineering decisions are forensically tested.

Marta specialises in the investigation of fire safety defects across external wall systems, internal compartmentation and active fire protection systems. Her work includes detailed site inspections, review of fire strategies and technical documentation, PAS 9980–aligned appraisals, and the development of proportionate, risk-based remediation strategies. Her approach is grounded in core fire engineering principles, including fire dynamics, system performance and consistency with as-built conditions.

She has acted as both expert advisor and expert witness, and has supported named experts on complex, high-value disputes across the residential, healthcare, education, hospitality and transport sectors. Her background in fire research, particularly in fire dynamics and the fire behaviour of polymeric materials, supports a methodical and evidence-led approach to issues involving fire spread, material performance and system failure.

Direct yet approachable, Marta builds trust through her consistency, precision and quiet professionalism. Calm under pressure and unwavering in her standards, she is a reliable and respected expert presence on disputes
where technical clarity and disciplined reasoning are paramount.