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Expert Profile

David Merritt

David Merritt

Quantum Expert


MSc. Construction Law & Arbitration
Common Professional Examination in Law
Royal Institution of Chartered Surveyors Diploma
National Certificate in Construction & Engineering
Bar Vocational Course
CEDR Accredited Mediator

Memberships & Associations

Member of the Honorable Society of Middle Temple
Member of the Academy of Experts

Contract Experience




Regional Experience

Asia Pacific
Middle East

Cross-Examination Experience



  • Chartered Quantity Surveyor and Chartered Civil Engineering Surveyor
  • Over 35 years of construction and engineering experience
  • Specialist in the evaluation of construction claims
  • Extensive international experience
  • Cross-examined and experience of concurrent witness evidence
  • A Who’s Who Legal ‘Thought Leader’ in 2018 and 2019


A Chartered Quantity Surveyor and Chartered Civil Engineering Surveyor, David has over 35 years’ experience of the construction industry. In that time he has been engaged by contractors, private and public sector employers and various professional practices.

David’s formative years were spent working as a site based quantity surveyor, primarily for contractors, on construction and engineering projects in the United Kingdom and then East Africa. Over the last 25 years he has specialised in providing commercial consultancy services to the construction industry including pre-contract and post-contract quantity surveying services, claims preparation and evaluation, and dispute resolution services for government entities, private and public employers, contractors, subcontractors and other construction professionals.

David’s major sector experience includes buildings, infrastructure, marine and energy projects across Europe, Africa, Far East and the Middle East where he has worked on many high profile projects with values in excess of $5 billion.

David’s main area of technical expertise is in evaluating contractual claims, covering such subject matters as prolongation, disruption, acceleration, cost escalation, depreciation, head office overheads, and loss of profit claims. He has been crossed examined on measurement issues, valuation of work carried out, variations, prolongation and disruption.

David is masters qualified from Kings College, London and is a Fellow of the Royal Institution of Chartered Surveyors, a Fellow of the Chartered Institute of Arbitrators, a Fellow of the Institute of Civil Engineering Surveyors, a Member of the Chartered Institute of Building, and a Barrister. He is also named in Who’s Who Legal Construction: Expert Witnesses and Who’s Who Legal: Thought Leaders in 2018 and 2019.

This expert has the following cross-examination experience:

  • International Arbitration
  • Domestic Arbitration
  • Adjudication/Mediation
  • Successfully completed external cross examination courses

This expert has recently been instructed by:

  • Clifford Chance
  • Freshfields Bruckhaus Deringer

“David is highly regarded as a quantum expert who produces robust analysis and evidence to clearly identify cause and quantify disputed sums.”

WWL says: “David Merritt is a go-to name in the sector for his excellent work on claims issues across a broad range of high-value international projects.”