Mark Phillips, BA, DipArch, DipAP, MSc, RIBA

J.S. Held’s Inaugural Global Risk Report Examines Potential Business Risks & Opportunities in 2024

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Mark Phillips

Senior Managing Director


+44 20 4576 0174 (Office)
18 St Swithin's Ln
London, UK EC4N 8AD

For current engineering licensure info, click here.

Mark is a Chartered Architect, Expert Witness, and Forensic Architect in J.S. Held's Forensic Architecture practice. Mark has been instructed as an independent architectural expert on numerous cases and has worked on some major U.K. and international disputes. He has been qualified for 20 years and has an MSc in Construction Law from King’s College.

He has worked on award-winning projects and bids and has extensive technical experience. He has a hands-on, practical approach and a wealth of experience in remediation and investigating building defects, building on his systematic analysis and interest in design and building construction.

Mark’s portfolio spans a wide range of sectors including education, commercial developments, office, residential and retail, swimming pools, theatres, and large-scale transport and infrastructure projects. He has specific experience in sustainable design and construction and design and build contracts.

His investigative work has included water ingress, fire protection, defective design, quality of workmanship, adequacy of design information, external wall construction, coordination, compliance with Building Regulations, the reasonableness of architect’s fees, and professional negligence. This has often involved complex projects in the residential, retail, commercial offices, hotels, education, transport, and aviation sectors. He has been appointed as an expert joint expert and has been involved in litigation, multi-party and two-party mediations, adjudications, and international arbitrations. This has taken him to projects and sites across the UK, the Middle East, and Africa.

Key Expertise

  • Architect Expert Witness
  • Forensic Architect
  • Building Defects
  • Professional Negligence
  • Building Quality & Sustainability

Professional Registration:

  • Chartered Member of the Royal Institute of British Architects (RIBA)
  • Registered Member of the Architects Registration Board (ARB)