Overview Expertise Related Insights, Events & Cases
Andrew Fenn has been described as “one of the most talked-about juniors in the country” and “expected to become a leading KC” by Chambers UK Bar Guide.
Recently shortlisted for International Arbitration Junior of the Year by Chambers and Partners, and ranked as a leading junior in International Arbitration by The Legal 500, he is described in that field as “A fantastic writer and advocate, and a very effective cross-examiner”.
Identified by clients as “very commercial and a good team player”, Andrew specialises in all areas of Chambers’ work. He acts for contractors, private employers, professional advisors and insurers, who see him as “easy to deal with and highly responsive”.
Andrew has acted as sole and junior counsel on large litigations, international and domestic arbitrations, and in the Court of Appeal. His international arbitration experience is extensive, with instructions arising out of disputes in Oman, Egypt, Dubai, Doha, Qatar, Australia, Georgia, Japan, South Africa, Singapore, Russia and Gibraltar.
Andrew also appears regularly as sole counsel in court and adjudication hearings, assisting with drafting and providing tactical advice at every stage, including: pre-action protocol, pleadings, disclosure, witness statements and expert reports, negotiations, applications and hearings including summary judgment, security for costs, CMCs and trial.
“He is tenacious and of enormous help on complicated fact-specific cases,” says one source, while others describe him as a “work-horse”. Instructing solicitors appreciate his keenness to work with them as part of a team, and clients value his “commercial awareness and well thought-out advice on complicated matters.” In 2018 Andrew was identified as a standout member of the junior Bar and listed as a ‘rising star’ in Who’s Who Legal.
“Andrew is accomplished well beyond his years and incredibly easy to deal with. He is a hugely compelling advocate and particularly good at grappling with complex delay and disruption claims.”
Chambers & Partners
“Loved by clients and commands absolute confidence in the quality of his written work and preparation of the case.”
The Legal 500
“Accomplished well beyond his years and incredibly easy to deal with.” “Incredibly bright and very user-friendly.”
Chambers & Partners
Andrew has acted on a wide range of disputes in court proceedings and arbitration. Recent instructions include:
Andrew’s practice includes acting for parties concerning the development and exploitation of oil and gas, as well as the extraction and processing of other natural resources. Recent instructions include:
Solutions 4 North Tyneside Limited v Galliford Try Building 2014 Limited [2022] EWHC 2372 (TCC)
GREP London Portfolio II Trustee 3 Ltd & Anor v BLFB Ltd & Anor [2021] EWHC 1850 (TCC)
Carillion Plc v KPMG LLP & Anor [2020] EWHC 1416 (Comm)
Connect Plus (M25) Ltd v Highways England Company Ltd [2018] EWHC 140 (TCC)
GSK Project Management Ltd v QPR Holdings Ltd [2015] EWHC 2274 (TCC), [2015] 4 Costs LR 729.
Obrascon Huarte Lain SA v HM Attorney General for Gibraltar [2015] EWCA Civ 712, 161 ConLR 14
Obrascon Huarte Lain SA v Her Majesty’s Attorney General for Gibraltar [2014] EWHC 1028 (TCC)
Hurley Palmer Flatt Ltd v Barclays Bank Plc [2014] EWHC 3042 (TCC), [2015] BUS LR 106
TSG Building Services Plc v South Anglia Housing Ltd [2013] EWHC 1151 (TCC)
Michael Phillips Architects Ltd v Riklin & Anor [2010] EWHC 834 (TCC)
Andrew has a good working knowledge of French.
Andrew is a member of the SCL.
“Andrew’s drafting style is fantastic, and his oral advocacy skills are really composed and authoritative, beyond his seniority.”
International Arbitration, Chambers UK Bar 2025
“Andrew Fenn is knowledgeable and reliable.”
“Andrew Fenn is very accessible. He works incredibly hard and he gives clear and robust advice.”
“Andrew is very astute. He is all over the detail.”
Construction, Chambers UK Bar 2025
“Andrew is very commercially savvy, approachable and user-friendly.”
Construction, The Legal 500 2024
“He has a brilliant mind and is highly experienced.”
“He really does get across the whole of the case and produces excellent material.”
International Arbitration, Chambers UK Bar 2024
“Andrew Fenn is the complete advocate and a pleasure to work with.”
“Andrew is able to get across complex technical and legal matters very quickly, is patient and empathetic with client concerns and is an excellent team member to work alongside.”
“He’s at the top of my list for construction barristers.”
Construction, Chambers UK Bar 2024
“He is very good with clients, works through the detail and distils complex disputes into the key issues quickly and clearly.”
“He’s a superb technical lawyer, great on strategy and great with clients, and a very effective advocate.”
“He’s very bright and able, hardworking and on top of his brief.”
Construction, Chambers UK Bar 2023
“He’s extremely down to earth, works hard, and makes cogent and clear submissions which get to the nub of the issue.”
“He excels in every case and is flexible to work with.”
International Arbitration, Chambers UK Bar 2023
“Andrew is absolutely excellent in driving forward the path to a successful strategy. His written advocacy is first-class from the first draft he issues. His oral advocacy is calm, measured, robust and highly persuasive.”
Construction, The Legal 500 2023
“Andrew is absolutely excellent in joining the legal team and driving forward the path to a successful strategy. He gets across the core issues that have to be won and helps massively with guiding the client team and experts to produce what is needed to support the case. His written advocacy is first class from the first draft he issues. His oral advocacy is calm, measured, robust and highly persuasive.”
International Arbitration, The Legal 500 2023
“Andrew is a star in the making. He is extremely clever, able to get into complex detail quickly and is very useful friendly. His written work is particularly impressive.”
Middle East: Construction, The Legal 500 2023
“He is the complete package, demonstrating an impressive fluency with the relevant principles of law as well as a deep understanding of the more technical, practical aspects of construction projects.”
“Andrew is a brilliantly intelligent advocate who quickly masters complex briefs with a knack for distilling complex issues into appealing and persuasive concepts for the tribunal.”
Construction, Chambers & Partners UK Bar 2022
“The quality of his technical analysis is amazing. His written and oral advocacy are spot on.” “He is a real team player and works with the law firm team to achieve common and strategic objectives well.”
International Arbitration, Chambers & Partners UK Bar 2022
“Andrew has a first-class brain and his ability to guide clients through an international arbitration inspires great respect and gratitude.”
Construction, The Legal 500 2022
“An excellent team leader. He is very personable, understands the demands of building a case, seeks to draw the best work from those around him and build on it to advance the case.”
International Arbitration, The Legal 500 2022
“Extremely bright, practical and commercial – and an excellent advocate who is clear and concise in his explanation of difficult concepts confident without a hint of arrogance.”
Middle East, Construction, The Legal 500 2022
“He is one of the bright stars of the Bar with an incredible work ethic and is good on his feet.”
Construction, Chambers & Partners UK Bar 2021
“He has an incredible grasp of the details and an impressive command of the facts.” “Absolutely brilliant and very articulate in cross-examination.”
International Arbitration, Chambers & Partners 2021
“Demonstrated an immense capacity to get across the detail of the whole of the case and to focus on points of precision that unlocked key issues for our case; he collaborated brilliantly with the team of instructing solicitors and engendered great confidence amongst the client team.”
International Arbitration, The Legal 500 2021
“Andrew integrates into and leads a large team in complex disputes superbly; his written work is detailed but focused; and has a sharp strategic instinct to advise on tactics.”
Construction, The Legal 500 2021
“Andrew is accomplished well beyond his years and incredibly easy to deal with. He is a hugely compelling advocate and particularly good at grappling with complex delay and disruption claims.”
Construction, Chambers & Partners UK Bar and Global 2020
“Very user-friendly and rolls up his sleeves and gets down to the nitty gritty.”
International Arbitration, Chambers & Partners UK Bar 2020
“Loved by clients and commands absolute confidence in the quality of his written work and preparation of the case.”
Construction, The Legal 500 2020
“Great attitude, hardworking, strong advocate and easy to get along with.’
International Arbitration, The Legal 500 2020
“Extremely clever, he is able to get in to the detail quickly.”
Construction, Legal 500 Europe, Middle East and Africa (EMEA) 2020
Following the 2024 competition, Chambers is delighted to announce Andrew Fenn is to be appointed…
Atkin Chambers is delighted that eleven members have been recognised in Lexology Index and Global…
Andrew Fenn and Ronan Hanna (led by Lord David Wolfson KC) acted for the successful…
16 members of Atkin Chambers – 9 King’s Counsel and 7 Juniors – have been…
For more information please contact our clerks on
+44 (0)20 7404 0102 or clerks@atkinchambers.com