Lee Simões

Quantum Expert

Expert Highlights

  • 27 years of experience, of which circa 22 years has been spent in the Middle East with the remainder in the UK.
  • He has testified multiple times in arbitration proceedings and regularly appointed as a quantum expert witness in litigation and arbitration proceedings.
  • Worked for government agencies, developers, main and sub-contractors.
  • Worked on 44 no construction dispute cases in the last 10 years. Attended Highest disputed case value was AED 7.5 Billion.
  • Experience in drafting clear and concise expert reports, providing quantum and observation inputs into pleadings and for cross examination. Has worked closely with lawyers, in-house counsel and barristers in litigation and arbitration cases including hearing support.
  • He has attained a large diversity of regional projects experience (UAE, KSA, Qatar, Bahrain, Oman).
  • He has considerable experience in most FIDIC and JCT-based contracts and forms, including EPC/Design & Build, Target Cost, and Management contracts, as well as complex bespoke forms of the same in use within the MENA region.

Lee’s Middle East experience includes providing Expert Witness, Contract Advice, Claims, Arbitration, Cost Consultancy, and Project Management services. He has assisted high-level clients including governments, developers, contractors, and sub-contractors with advice covering evaluation of quantum for delay and disruption, claims preparation, disputed variations, and contract-administration matters. He has been extensively involved in arbitration and litigation proceedings, and also provided Cost Management and Quantity Surveying services for a wide range of project types and values.

Lee has worked in most GCC countries on behalf of Employers/Government Agencies and Contractors with a project value of up to USD3 billion, including military, renewable energy, dredging/land reclamation, infrastructure power/roads/networks, residential, offices, hotels, retail malls, sports stadia, golf course, airport/aircraft engineering, hospitals, education, and conference facilities.

Developed an award-winning quantity surveying practice in the UAE (UK Building Magazine award for International Cost Management – 2008).


BSc (Hons) Quantity Surveying
LLM (Distinct) Construction Law and Arbitration
RICS Expert Witness, Penny Harper Legal Experience Training (UK)
Oil & Gas Contract Law (RGU Module Grade B)

Professional Memberships

Member of Royal Institute of Chartered Surveyors
Fellow Chartered Institute of Arbitrators
Committee Member for the Society of Construction Law (UAE)