Mr Mark Chennells > Atkin Chambers > London, England > Lawyer Profile

Atkin Chambers
Atkin Chambers
1, Atkin Building, Gray's Inn
Mark Chennells photo


Mark has broad experience of acting both as sole counsel retained in proceedings and as junior counsel in very large commercially, legally and technically complex disputes with expertise in domestic and international arbitration, TCC and Commercial Court litigation, adjudication and mediation.

He specialises mainly in construction and engineering, professional negligence, IT and telecommunications, and energy disputes representing governments, a wide range of contractors, private employers and their professional advisors all over the world. He also has experience of issues of private international law, including the jurisdiction of the English and foreign courts and the determination of applicable law.


Qualified 2002; Gray’s Inn.


Mark is a member of COMBAR, TECBAR and the SCL.

Lawyer Rankings

London Bar > Energy

(Leading Juniors) Ranked: Tier 3

Mark ChennellsAtkin ChambersClever with good instincts and very able to run whole sections of a big case on his own.

Atkin Chambers is ‘a “go-to” set for energy construction and engineering disputes‘. Clients remark that it is ‘very strong academically and has excellent counsel‘ and that the clerks are ‘impressive, welcoming and efficient‘. It is a commercial set with an international reputation in energy project disputes, including the construction of power generation plants, FPSOs, drilling rigs, and subsea cabling and pipe-laying vessels. Andrew White QC  and Mark Chennells acted in a $400m TCC action arising out of Greater Gabbard Offshore Wind Farm project – one of the biggest cases by quantum in the TCC. Chantal-Aimée Doerries QC handled a high-value claim arising from an EPC project in the Gulf.

London Bar > Construction

(Leading Juniors) Ranked: Tier 1

Mark ChennellsAtkin ChambersHe has a knack for suggesting different approaches which turn issues on their head and in your favour.

London Bar > International arbitration: counsel

(Leading Juniors) Ranked: Tier 2

Mark ChennellsAtkin ChambersHas a knack of popping up with slightly different answers and approaches which turn issues on their head and in your favour.

London Bar > IT and telecoms

(IT and telecoms (excluding regulatory) - Leading Juniors) Ranked: Tier 2

Mark ChennellsAtkin ChambersHe offers considered analysis and instils confidence into his clients.

Asia Pacific - The English Bar > Construction, energy and infrastructure

(Leading Juniors) Ranked: Tier 1

Mark ChennellsAtkin ChambersDedicated, with a great eye for detail.