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Who's Who Legal
Who's Who Legal

Global Leader

WWL Ranking: Recommended

Peers and clients say:

"He has shown an immense ability to produce detailed reports within challenging timetables"

"An expert in his field with impressive experience of being a quantum expert on a wide variety of construction projects"
"Seamus quickly gets involved in the detail on complex matters"

"He is simply great to work with"

"He is very proactive and prepares exceptional reports"


Seamus O’Doherty is a London based Director in BRG’s Construction Practice. He is a Chartered Quantity Surveyor, Chartered Builder, adjudicator, arbitrator and mediator with nearly thirty years of experience in commercial and project management and related disciplines. 

Seamus is regularly appointed as an independent quantum expert in construction and engineering disputes. He also assists clients with litigious matters in the formulation of strategy, preparation of documents and case presentation in adjudication, arbitration, and litigation in the UK and abroad.

He has worked for engineering and construction companies, consultancies, and client organisations on projects in various countries including the UK, Ireland, Germany, Russia, Ukraine, Mexico, USA, India, China, and the Middle East.

Seamus has provided 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 sub-contracts including NEC, JCT, FIDIC, ICE.

Seamus is also regularly appointed as a dispute resolver and is a panel member of the RICS President’s Panel of Construction Adjudicators, UK Adjudicators, the CIC Low Value Disputes Adjudication Scheme, the CIArb Business Arbitration Scheme and is a CEDR ADR Official. He is a Liveryman of The Worshipful Company of Arbitrators.

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