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Who's Who Legal
Who's Who Legal
Thought Leaders

Thought Leaders

Thought Leader

WWL Ranking: Global Elite Thought Leader
Thought Leaders - Construction Experts 2020
WWL Ranking: Thought Leader

Global Leader

WWL Ranking: Recommended

Peers and clients say

"Rob comes across well and is quick to win the trust of tribunals and experts"
"A great witness and someone who is difficult to flap under cross-examination"
"His delay analaysis was so impressive, well researched and detailed"
"He has adopted a thorough approach to his analysis and bore with the challenges of opposing counsel and experts"


Rob Palles-Clark, partner at Blackrock Expert Services, is a quantity surveyor and quantum and delay expert with over 35 years of experience in the construction and engineering industry. He has extensive experience of major building, civil engineering, highway, marine, railway, petrochemical and water projects throughout the UK, Europe, the Middle East and other international locations.

Rob has had over 60 appointments as an independent quantum and/or delay expert witness, including several high-profile, billion-dollar cases.  He has twice given expert evidence in the Technology and Construction Court (TCC) on quantum and programming matters. He has been cross-examined both as a delay and a quantum expert in international arbitrations on many occasions, has experience of “hot-tubbing” and he has extensive experience of adjudication and mediation.

Rob’s experience as a quantity surveyor has involved the pre-contract and post-contract financial administration of commercial projects, and extensive experience in delay and cost claim preparation, analysis, management and resolution. He has also advised clients about best practice procurement and procurement procedures and has drafted several procurement guides for the UK Government.

Rob sits as an adjudicator on adjudicator panels for three distinguished bodies: the Royal Institution of Chartered Surveyors (RICS); the Technology and Construction Solicitors’ Association (TeCSA); and the Royal Institute of British Architects (RIBA).

WWL Ranking: Recommended
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