Seamus O’Doherty is a Chartered Quantity Surveyor, Chartered Builder, adjudicator, arbitrator and accredited mediator with over thirty years’ experience in commercial and project management.

He has worked for engineering and construction companies, consultancies and client organisations on projects in the United Kingdom, Ireland, Germany, Russia, Ukraine, Mexico, the United States, India, China, the Middle East and others.

Mr. O’Doherty’s experience includes cost planning, estimating, procurement, contract claims (typically related to delay and disruption, loss and expense and final accounts) and commercial management on a broad range of projects, including rail, metro, power, steel plants, pharmaceutical, oil and gas, airport, bridge, commercial, residential, civil, educational, health and industrial. He has worked with standard and bespoke main contracts and subcontracts including FIDIC, NEC, JCT and ICE.

In addition to his experience as a construction professional, Mr. O’Doherty has been involved in a wide range of dispute matters and has provided independent quantum expert evidence in dispute resolution fora, including testifying in international arbitration. He has also assisted clients and legal teams with litigious matters in the formulation of strategy, preparation of documents and case presentation in adjudication, arbitration and litigation.

Mr. O’Doherty is regularly appointed as an independent quantum expert in construction and engineering disputes. He is also a dispute resolver and panel member of the RICS President’s Panel of Construction Adjudicators, UK Adjudicators and CIArb Business Arbitration Scheme and is a CEDR ADR Official. Mr. O’Doherty has been appointed as the adjudicator or arbitrator in disputes involving construction and engineering, aviation and the surveying activities of RICS member firms. He is a liveryman of The Worshipful Company of Arbitrators.

Mr. O’Doherty is ranked in the Who’s Who Legal 2023 guide as a Global Elite Thought Leader in both the Construction Expert Witnesses and Experts – Construction – Quantum Delay & Technical categories; and is Recommended in the Arbitration category in the 2024 guide.

Employment History

Gardiner & Theobald Fairway Limited, London
Director, 2014–2019
Associate director, 2013–2014

Siemens AG, Germany
Senior contracts manager, 2013

Fairway GmbH, Dublin & Germany
Senior manager, 2008–2012

Engineering Cost Management Limited, Dublin
Director, 2005–2008

McHale Plant Hire Limited, Dublin
Senior quantity surveyor, 2004–2005

Fluor Daniel Limited, Dublin
Senior quantity surveyor, 2003–2004

MVMBNI JV Limited, Dublin
Senior quantity surveyor, 2001–2003

Jacobs Engineering Incorporated, Dublin
Senior quantity surveyor, 2001

Brian M. Durkan & Company Ltd., Dublin
Senior quantity surveyor, 2000 – 2001

S.A. Kentz, Kingdom of Saudi Arabia
Senior quantity surveyor, 2000

Duffy Construction Limited, London
Section commercial manager, 1997–2000

Alandale Construction Limited, London
Senior quantity surveyor, 1996–1997

Duffy Construction Limited, London
Project quantity surveyor, 1993–1996

Foreman Construction Limited, Dublin
Assistant quantity surveyor/estimator, 1991–1993

Professional Affiliations

Royal Institution of Chartered Surveyors, Fellow

Society of Chartered Surveyors Ireland, Fellow

Chartered Institute of Arbitrators, Fellow

Chartered Institute of Building, Member

Society of Construction Law, Member

Adjudication Society, Member

RICS President’s Panel of Construction Adjudicators, Member

UK Adjudicators Panel of Adjudicators, Member

CIArb Business Arbitration Scheme (BAS) Panel of Arbitrators, Member

CIC Low Value Disputes Adjudication Scheme, Member

The Worshipful Company of Arbitrators, Liveryman

Academy of Experts, Member

Community/Civic Involvement

CEDR ADR Official for Consumer Disputes

Areas of Expertise


Cardiff University, 2016
Bond Solon Expert Witness Certificate

The Royal Institution of Chartered Surveyors (RICS), 2016
Diploma, Adjudication

Chartered Institute of Arbitrators (CIArb), 2014
Diploma, International Arbitration

University of London, 2012
LLB (Hons)

ADR Group/Friary Law, 2011
Accredited Mediator

Trinity College Dublin, 2002
Postgraduate diploma, Construction Law and Contract Administration

London South Bank University, 1995
BSc. (hons), Quantity Surveying

Dublin Institute of Technology, 1992
Diploma, Construction Technology