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Expert Profile

Simon Braithwaite

Simon Braithwaite

Quantum Damages and Delay Expert

MSc Construction Law and Dispute Resolution
Post Graduate Diploma, Quantity Surveying
BSc (Hons) Construction Management
Society of Construction Law, Member
Society of Construction Law North America, Founding Member
Presented seminars and workshops on delay analysis, cost control, productivity analysis, claims prevention and commercial risk, et al.
Oil & Gas
Process & Industrial
Middle East
United Kingdom


  • Quantity Surveyor
  • Over 20 years professional industry experience
  • International and domestic experience across multiple sectors
  • Extensive experience in preparation of claims and expert evidence related to delay, disruption, productivity, and associated damages
  • Regular speaker at the RICS, SCL, CIOB, AACE and IBDiC


Simon has over 20 years of professional experience in the areas of construction consulting, claims and disputes related to delay, disruption, productivity and damages.

He has extensive experience in preparation of claims and expert evidence related to delay, disruption, productivity, and associated damages, and has also provided advice on these issues for live projects. Simon has provided these services on projects including water treatment, power generation, residential and commercial construction, government projects, stadiums, rail projects, bridges, and process facilities among other construction/engineering projects. In addition, he has prepared commercial risk analysis for clients on various forms of contract.

Simon has prepared expert submissions for both domestic and international dispute forums. He has also presented at mediations on behalf of clients and been involved in a number of settlement negotiations. Simon has prepared and reviewed change orders and performed delay analysis, cost estimates, and productivity analysis. Additionally, he has provided advice to consultants and financers on troubled projects and bankruptcy matters, along with surety and insurance claims.

Simon has presented seminars and workshops on delay analysis, cost control, productivity analysis, claims prevention, commercial risk, and expert witness among other relevant subjects to lawyers, clients, and education institutions. In addition, Simon often presents to The Royal Institution of Chartered Surveyors, Society of Construction Law, Chartered Institute of Building, AACE International, and Instituto Brasileiro de Direito da Construção (IBDiC) on relevant issues.

WWL says: 

“Simon Braithwaite is a renowned quantum expert who is “very good on his feet and can think quickly” while being “excellent under pressure in a cross-examination”.”

Simon is recognised by Who’s Who Legal as a Thought Leader in Thought Leaders Global Elite – Experts – Construction – Quantum Delay & Technical 2023, Thought Leaders – Construction Experts, Thought Leaders – USA – Construction – Quantum Delay & Technical 2024, Thought Leaders – USA – Construction Expert Witnesses 2024, and as a Global Leader in Construction Expert Witnesses 2023, and Consulting Experts – Construction – Quantum Delay & Technical 2023.