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Chambers of Mark Cannon QC

Living Wage
Work 020 7822 2000
Fax 020 7822 2001

Justin Fenwick QC

Work 020 7822 2000
4 New Square (Chambers of Mark Cannon QC)


Justin Fenwick came to the Bar in 1981 and was appointed QC in 1993 (the most junior member of the Bar to be appointed as Silk in the 1993 list). He has sat as a Judge in both civil and criminal cases, having been made an Assistant Recorder in 1994, a Recorder in 1999 and a Deputy High Court Judge (Chancery and Queen’s Bench Division) in March 2003. He was appointed a Deputy Judge of the Administrative Court in 2008. He was Head of Chambers at 4 New Square between 2000 and 2005 and has been a Bencher of the Inner Temple since 1997 and was Chairman of its Investment Sub-Committee between 2004 and 2011. He was Chairman of the Bar Mutual Indemnity Fund (the Bar’s own Mutual Insurer) from 1999 until 2013. He is a Commissioner of the Royal Hospital Chelsea (home to the Chelsea Pensioners) since 2011 where he sits on the Remuneration Committee. He has an extensive offshore and international practice involving court appearances in Singapore, Hong Kong, Dubai, BVI, Cayman, Bermuda, St Vincent and Nevis.


Called 1980, Inner Temple Bencher 1998; QC 1993, recorder since 1996, Deputy High Court Judge Chancery Division, Queen’s Bench Division and Administrative Court since 2003; chairman of Bar Mutual Indemnity Fund since 1999; Head of Chambers 2000-06; previously ten years in Grenadier Guards (including intelligence and operational duties); assistant private secretary, temporary equerry to the Duke of Edinburgh 1979-81.


French, Spanish (fluent); some Italian, German.


Ampleforth College; Clare College, Cambridge (1971 Modern Languages and Architectural History).

London Bar

Commercial litigation

Within: Commercial litigation – Leading silks

Justin Fenwick QC - 4 New SquareA top-class advocate and operator.

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Fraud: civil

Within: Fraud: civil – Leading silks

Justin Fenwick QC - 4 New SquareHas great litigation ring craft and knows the best way to present a complex case clearly.

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Insurance and reinsurance

Within: Insurance and reinsurance - Leading silks

Justin Fenwick QC - 4 New SquareIntelligent and rigorous on his feet.

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Within: Offshore – Leading silks

Justin Fenwick QC - 4 New SquareHis practice includes offshore professional negligence cases.

Within: Offshore

4 New Square’s offshore practice covers a range of work, much of it with a slant towards the professional negligence work that the set is well known for in London. Instructed by a BVI law firm, Justin Fenwick QC continues to represent the liquidators of Stanford Bank in litigation against two US law firms which represented what was described by the Securities and Exchange Commission as a ‘massive Ponzi scheme’.

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Product liability

Within: Product liability – Leading silks

Justin Fenwick QC - 4 New SquareHighly sought after for the breadth of his expertise.

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Professional negligence

Within: Professional negligence – Leading silks

Justin Fenwick QC - 4 New SquareHe is a clear thinker.

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