Alexander Nissen KC > The Chambers of Alexander Nissen KC > London, England > Lawyer Profile

The Chambers of Alexander Nissen KC
Keating Chambers


Alexander Nissen was called to the Bar in 1985, became a Queen’s Counsel in 2006 and was appointed Head of Chambers in 2020. He specialises in advocacy and advisory work, adjudication, arbitration, litigation and the mediation of construction, engineering, energy and professional negligence disputes.

Alexander’s practice covers a wide variety of cases ranging from client/developer claims, PFI disputes, and adjudication enforcement to professional negligence cases (architects, surveyors, valuers, solicitors and civil, structural and geotechnical engineers). He deals with both contractors’ and sub-contractors’ claims and defects disputes. His work also covers rail projects, disputes relating to bonds (both domestic and international), power stations, waste recycling facilities and oil and gas projects.  He is familiar with all the standard forms of contract including JCT, NEC, I Chem E and FIDIC. Following his successful involvement in the two Grove Development cases, Alexander has acquired a formidable reputation in the field of payment disputes under the HGCRA.

Alexander is a Chartered Arbitrator, an accredited adjudicator and mediator. His arbitration work covers both domestic and international disputes. He has been appointed both through party selection and by the ICC. He was appointed as a Recorder in 2007 and as a Deputy High Court Judge in 2013. Since 2015 he has been sitting in the TCC.


Head of Keating Chambers 2020
Chairman of TECBAR 2017-2019
Vice Chairman of TECBAR 2015-2017
Recommended PIAC International Arbitrator 2016
Deputy High Court Judge (TCC) 2015
Approved Arbitrator, Kuala Lumpur Regional Centre for Arbitration 2014
Deputy High Court Judge (Administrative Court) 2013
Public Access Training 2008
Recorder 2007
Queen’s Counsel 2006
Accredited Mediator 2004
Chartered Arbitrator 2003
TECBAR Accredited Adjudicator 2002
FCIArb 2000
Called to the Bar (Middle Temple) 1985 Keating Chambers 1989


Society of Construction Law (former Council Member)
Technology and Construction Bar Association (TECBAR)
Commercial Bar Association (COMBAR)
Law Society Panel of Arbitrators 2006


Mill Hill School; Manchester University (1984 LLB Hons).


Alexander enjoys theatre and watching (but not playing) tennis.

Lawyer Rankings

London Bar > Construction

(Leading Silks)Ranked: Tier 1

Alexander Nissen KCKeating Chambers ‘Alexander is one of the most thorough construction silks out there. He is a compelling advocate who is extremely bright, approachable and responsive. He gets to the bottom of every issue before pleading a position comprehensively and robustly.’

London Bar > Energy

(Leading Silks)Ranked: Tier 3

Alexander Nissen KCKeating Chambers ‘One of the most thorough construction silks out there, he will get to the bottom of every issue before pleading a position comprehensively and robustly.’

London Bar > International arbitration: arbitrators

(Leading counsel as arbitrators)Ranked: Tier 2

Alexander Nissen KC – Keating Chambers ‘He is very hard working and can be trusted to get the correct answer.’

Keating Chambers is a ‘top construction set’ with ‘a number of outstanding arbitrators who are regularly appointed as tribunal members‘. Construction, infrastructure and energy dominate the agenda for the set’s full-time and part-time arbitrators who have extremely good credentials for arbitrating disputes in Europe, the Middle East, Africa and Asia. Many of the set’s full time arbitrators were previously distinguished counsel in their own right, including Robert Gaitskell KC, John Marrin KC  and Marcus Taverner KC. Coupled with this is a deep bench of practicing barristers, including Veronique Buehrlen KC, Richard Harding KC and head of chambers, Alexander Nissen KC.

London Bar > Professional negligence

(Leading Silks)Ranked: Tier 2

Alexander Nissen KCKeating Chambers

Keating Chambers is well regarded for their work in technology and construction related professional negligence cases. Members of the chambers are often involved in domestic and international disputes, specialising in defending claims against professionals including architects, contractors and IT consultants. Adam Constable KC specialises in complex construction and engineering projects with a focus on technical claims. Alexander Nissen KC has been involved in Multiplex Construction Europe Ltd v Argo Global Syndicate, which related to the construction of a high profile and substantial 40-storey tower on Bishopsgate; it is alleged that there was a failure to perform a proper design check on a slip-form rig.