Derek Nelson


Construction 2019
Arbitration 2019
Consulting Experts 2018
Arbitration 2018
Consulting Experts 2017
Expert Information
Qualifications BSc Quantity Surveying
PgDip International Commercial Arbitration
Professional Memberships FAE, FCIArb, FSIArb, FRICS, FCInstCES, MAPM, FCMI, CEngS, AACEi, CCP, DRBF
Contract Experience FIDIC, NEC3, JCT, ACA, PSSCOC, SIA, PAM, Bespoke
Services Quantum, Delay
Sectors Buildings, Infrastructure, Industrial, Power & Utilities, Oil & Gas, Aerospace, Defence, Security & Space
Expert Highlights
  • Over 45 international expert appointments.
  • Proven as a credible witness under cross-examination.
  • Has delivered expert testimony and opinion for disputes in excess of $1 billion.
  • Adopts a logical and thorough approach coupled with extensive technical knowledge.
  • Clearly and comprehensively presents complex issues and analysis.
  • Ranked as an acclaimed construction expert by Who’s Who Legal.

Derek is a Chartered Quantity Surveyor and Chartered Engineering Surveyor, with over 35 years of construction and engineering experience. He has acted as expert on over 45 occasions in delay, disruption and quantum matters.

Derek is both an accredited and certified expert witness and fellow of The Academy of Experts and has acted as a delay and quantum expert witness in arbitration, conciliation, litigation and mediation and as an expert determiner. He has been cross-examined on over 10 occasions and has delivered concurrent evidence in disputes from Belize to Brunei and Scotland to Singapore. Alongside his work as an expert adviser for ongoing projects, Derek undertakes the role of ‘project neutral’, independently reviewing international projects in preventative, on-the-job dispute resolution.

In addition to his expert commissions, Derek continues to provide clients with contractual advice, claims preparation and contract administration services on major contracts worldwide. He specialises in the preparation, negotiation and settlement of claims, whether disruption, acceleration or prolongation. Derek delivers advice and procedures to rapidly resolve or avoid disputes in a cost effective and timely manner.

Derek has held senior commercial and contracts positions for major international contractors and owners across Asia, Europe and the Middle East. His expertise includes matters of quantity surveying practice, valuation, damages, contract administration, contract management, commercial management and cost management, which he combines with his tested planning and delay analysis capabilities.

Aside from his extensive accreditations and wide experience, Derek is often called upon to deliver training and seminars on contractual problems, claims preparation, negotiation and dispute resolution. Derek is a contributing author to Delay and Disruption in Construction Contracts, 5th Edition First Supplement, Chapter 17, Disruption to Progress and Lost Productivity. In October 2018, he was welcomed as a Freeman in the Worshipful Company of Arbitrators.

He has a strong reputation with peers and clients alike and is described as: Derek Nelson “performs well in cross-examinations” and offers “professional and consistently high-quality work” whilst referred to as “usually the quickest to comprehend the crux of a matter and from there he offers and communicates the practical options or solutions”.  Derek is “a gifted quantum expert” that is commended for his “vigilance” during construction disputes. Nelson’s technical background coupled with his “intimate knowledge of international construction law and arbitration hearings” ensure that he is “highly sought after” to testify in disputes.

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Location Singapore, London, UK
"Derek Nelson 'performs well under cross-examination' according to respondents who praise his 'clear and well-researched reports'."
Who's Who Legal Arbitration: Expert Witnesses Who's Who Legal

Contact Derek