Alexander Nissen KC
Call: 1985
Silk: 2006
"Alexander is peerless. He has a brilliant mind and is truly exceptional intellectually, strategically, tactically and commercially."
Chambers & Partners UK 2024
Call: 1985
Silk: 2006
"Alexander is peerless. He has a brilliant mind and is truly exceptional intellectually, strategically, tactically and commercially."
Chambers & Partners UK 2024
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.
Acted in litigation relating to a defective car park for a prestigious shopping centre with substantial consequential loss claims.
Acted in litigation relating to a defective gasholder at Port Talbot steelworks (remedial costs £16m).
Acted in multi-party litigation relating to the defective design and construction of a warehouse extension with substantial consequential loss claims.
Acted in litigation (including Court of Appeal) concerning a £14m dispute over the validity of a payment notice and the right to adjudicate over its true value: (Grove Developments Ltd v S&T(UK) Ltd, CA).
Acted in litigation (including Court of Appeal) concerning the validity of a £3m payment notice on a power plant project: (C Spencer Ltd v MW High Tech Ltd).
Acted in litigation in respect of the provision of a bond on a substantial development project in Nine Elms.
Acted in adjudication on £11m “smash and grab” payment dispute.
Acted in adjudication in respect of a £22m claim for failure to serve Pay Less Notice.
Acted in Part 8 claim in respect of dispute over periodic payments under amended JCT Contract: (Grove Developments v Balfour Beatty).
Acted in £15m adjudication in respect of a disputed Side Agreement to a JCT Contract.
Acted in litigation in respect of the legal effect of expert determination clause.
Acted in multi-party litigation for tenant in relation to substantial defects claim at warehouse premises (claim circa £130m): (Accolade Wines Ltd v Volkerfitzpatrick and ors.).
Acted in litigation for apartment owners in relation to a claim under the Defective Premises Act against the contractor (claim circa £35m). (Rendlesham Estates plc v Barr).
Advised Hospital Trust in respect of £10m defects claim against Project Co.
Advised Project Co in respect of Unavailability Dispute on a significant public building.
Advised on Notice of Default in respect of Project Agreement for the provision of Waste Management Services.
Advised on breach of performance standards and reporting obligations in respect of contract for the provision of Waste Management Services.
Acted in adjudication in respect of payment dispute over Deductions and reporting issues at a hospital.
Acted for Project Co in respect of dispute concerning Unavailability at school premises caused by an alleged design and construction defect.
Acted in adjudication in dispute over provision of catering services at PFI hospital.
Dispute over scope of responsibility for maintenance services in relation to a hospital.
Advised in litigation in relation to defective design of cladding on university buildings.
Advised in relation to claim for the defective design of a water treatment facility.
Advised in relation to dispute concerning ground investigations at a residential development.
Acted in multi-party litigation relating to the defective design and construction of a warehouse extension with substantial consequential loss claims.
Acted for client in respect of proceedings for negligent design of forecourt at vehicle servicing depot.
Acted for client in respect of claim for negligent design and supervision by an architect of
multiple properties at a housing estate.
In arbitration proceedings, acted for contractor/designer on design and build project in which the client sued for the cost of demolishing and rebuilding industrial premises due to settlement conditions. Subsequently acted for contractor in passing on claim to the structural engineers in proceedings before the TCC.
Acted in arbitration in respect of $50m claim for construction of maritime jetty at LNG plant in Chile.
Acted in arbitration in respect of $50m claim on termination account at Waste Facility project in Scotland.
Advised in respect of substantial dispute concerning a project for the installation of gas compressors.
Advised client in respect of arbitration claim concerning plant designed and constructed under I Chem E contract.
Acted for subcontractor in arbitration proceedings in relation to £16m final account claim for civil engineering works at power station.
Acted for company engaged in commercial exploitation of natural gas produced at landfill site in relation to proposed claim circa £20m.
Acted for contractor in respect of claim for installation of wind turbines in Scotland.
Acted for contractor in respect of arbitration claims for work done at mineral sands extraction process plant and associated sub-station works in Mozambique.
Acted for employer on £2m adjudication dispute relating to the installation of a gas pipeline.
Acted for contractor in respect of dispute concerning the installation of an energy from waste facility, including claim for £16m liquidated damages.
Acted for contractor in respect of dispute concerning conversion of wood to energy plant.
Acted for contractor in TCC litigation concerning £4.5m claim in respect of the design and construction of a petroleum complex in Qatar.
Acted for contractor in respect of loss and expense claim for work done at a power station.
Acted in arbitration in respect of $50m claim for construction of maritime jetty at LNG plant in Chile.
Advised in respect of a claim for £75m in respect of damage to electrical cabling laid on the sea bed for connection to wind turbines.
Acted for subsea services provider in respect of claim for accidental damage costs of £15m.
Acted for Korean shipbuilder in connection with claim for delay relating to a semi- submersible drilling rig ($100m).
Acted for party in connection with late delivery of vessel for use in North Sea.
International arbitration
Appointed as party nominated arbitrator on ad hoc Omani arbitration concerning a project for the construction of reservoirs and water towers.
Appointed as president of ICC arbitration tribunal in respect of a $80m claim for payment and $570m counterclaim for defective construction of modules for installation at LNG plant in Australia.
Appointed as party nominated arbitrator on dispute about the recommissioning of two gas turbines.
Appointed as party nominated arbitrator on ICC arbitration in respect of cladding dispute on a development in Kazakhstan.
Appointed by the ICC in respect of a dispute over fees for services relating to a project for the construction of a road in Qatar.
Appointed as party nominated arbitrator on LCIA arbitration in relation to extension of time and associated claims on a pipework project in the Caribbean.
Appointed as party nominated arbitrator on ICC arbitration in respect of a US $100m dispute over the construction of a hotel in Azerbaijan.
Appointed as party nominated arbitrator on ICC arbitration in respect of a dispute over the price for supply of gas supplied by Swiss Company to Italian purchaser.
Appointed as party nominated arbitrator on DIAC arbitration in respect of late completion of a substantial development project.
Appointed as party nominated arbitrator on DIAC arbitration in respect of dispute concerning termination, extensions of time and costs of major City Expansion Scheme.
Appointed as arbitrator by Supreme Court of Turks and Caicos to determine dispute between contractor and hotel developer in Turks and Caicos.
Appointed as sole arbitrator by the ICC in connection with a dispute concerning the audit of records on a project for the production and delivery of two off-shore production structures, production decks and related equipment in the Black Sea.
Domestic arbitration
Appointed as sole arbitrator in respect of dispute over fire proofing defects in a PFI hospital and their consequences re: Deductions, SFPs etc.
Appointed as sole arbitrator in respect of dispute over design responsibility for structures on a substantial road building project in Wales.
Appointed as sole arbitrator on two disputes about fire proofing defects in various schools.
Appointed as sole arbitrator on payment claim for sums arising out of waste disposal agreement.
Appointed as sole arbitrator in respect of an insurance claim for the cost of rebuilding a substantial swimming pool house following a fire.
Appointed as sole arbitrator on a JCT Arbitration between a contractor and hotelier relating to refurbishment works at a hotel.
Appointed by the parties as adjudicator in respect of dispute over the proper construction of a PFI Project Agreement for a road maintenance contract.
Appointed by the parties as adjudicator in respect of an underground survey of electrical cabling responsible for a fire in central London.
Appointed by the parties as adjudicator in respect of a complaint about architectural design defects at a hospital.
Appointed by the parties as adjudicator in relation to a claim for a change in CAPEX costs at a PFI waste recycling facility in Scotland.
Appointed by the parties as adjudicator in relation to a dispute over the value of an additional works claim for maintenance and repair of mechanical and electrical services.
Appointed by the parties as adjudicator in relation to the valuation of an omission of services provided on a long-term maintenance contract.
Appointed as adjudicator on dispute relating to payment, extensions of time and loss and expense.
Appointed by the parties as adjudicator in relation to a dispute over a collision involving a tube train.
Appointed as adjudicator by the parties in a dispute over variation claim in relation to a community school PFI project.
Appointed as adjudicator by the parties in a dispute over termination in relation to a PFI contract for the design, construction and maintenance of new accommodation for the kennelling of military dogs.
Appointed as adjudicator by the parties in a dispute over compensation event claim in relation to contract for the demolition and new build or refurbishment of sheltered and warden supported properties under a PFI contract.
Appointed as adjudicator by the parties in a dispute over deductions made by an Authority in relation to contract for the demolition and new build or refurbishment of sheltered and warden supported properties under a PFI contract.
Appointed as adjudicator by the parties in a dispute over further deductions made by an Authority in relation to drainage at sheltered and warden supported properties under a PFI Contract.
Appointed as adjudicator by the parties in a dispute over scope of contractual obligations arising out of Project Agreement for the demolition and new build or refurbishment of schools pursuant to the BSF initiative (PFI contract).
Appointed as adjudicator by the parties in a dispute over a Compensation Event pursuant to a contract concerning a flood prevention scheme in Scotland.
Appointed as mediator in respect of multi-party dispute over claim for defects in a swimming pool at a holiday complex.
Appointed as mediator in respect of a Commercial Court dispute ($25m) about the partial collapse of a beam on a semi-submersible drilling rig in Singapore.
Appointed as mediator in respect of TCC litigation over the outcome of a profit share agreement on two development schemes.
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
LL.B., University of Manchester 1984
Alexander enjoys theatre and watching (but not playing) tennis.
"He is extremely clever, diligent and a tough advocate."
"Alexander is undeniably one of the top silks in the country for construction disputes."
"He has the ability to drop into the case, get to grips with it quickly and provide the most perceptive advice."
"Alexander Nissen is one of the pre-eminent construction silks in the country."
"Alexander is very charming but should never be underestimated; he is an exceptionally bright lawyer who never lets his clients down."
"He is very good at client handling and at seeing the bigger picture when managing complex litigation."
"Alexander is a compelling advocate, who is extremely approachable and responsive. A leader in the field and a regular first choice."
"A leader in the field, Alexander is a compelling advocate, who is extremely approachable and responsive."
"Alex is a fantastic tribunal. It is patently clear that he puts in the work in advance preparing for hearings, and his interventions are razor sharp and fair-minded, whilst remaining scrupulously courteous."
"Alexander is a compelling advocate, who is extremely approachable and responsive."
'Alexander is peerless. He has a brilliant mind and is truly exceptional intellectually, strategically, tactically and commercially.'
‘Alexander is a genius in everything he does. He has an amazing breadth of experience, and there is nothing he hasn’t seen or done in the past or is unable to advise upon in an authoritative but user-friendly manner.’
‘His strength is his hard work and powerful intellect. One can trust him to do the hard work, get into the detail and reach the right answer.'
'Superb judgement and refined advocacy skills.'
‘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.’
"He's a real authority that we turn to for robust advice and first-class representation for our clients, and one of those who can just think differently and unlock the toughest of issues."
"Alexander is a compelling advocate, who is extremely approachable and responsive. A leader in the field."
"Alexander is technically exceptional, with a brilliant understanding of judicial thinking."
"He's very bright and very credible. He can tell clients what they don't want to hear in a palatable way without avoiding the issues."
"He's an excellent and very reliable barrister. You know his opinions are always backed up by evidence and don't weaken over time."
"Incredibly clever and gets through the most difficult of legal issues with seeming ease." "A top specialist in the construction field."
"He is incredibly hands-on, intelligent and user friendly."
"He has a very commercial mindset that makes him stand out and he really understands complex issues whether technical or legal."
"Alexander is a compelling advocate, who is extremely approachable and responsive."
"Unbelievably thorough, detail-oriented, highly persuasive and has great cross-examination skills."
"Stands out for being a very effective advocate who deals with complicated legal points very nicely."
"Very thorough and maintains a sharp focus of key issues." "Phenomenal."
"He is fantastic on the detail and a real expert on contract interpretation."
"He is unparalleled in his field."
"Compelling advocate who is extremely approachable and responsive."
"Able to deal with incredibly complex technical issues and get to grips with them very quickly and explain the issues in a way that is easy to understand."
“He is a super-leader who really gets into the detail.”
"He has good judgement, is good strategically and is very responsive. A first-class lawyer who I trust with high-value legal problems."
"Alexander is superb. He has a cool head, a quick brain and an easy manner. We trust him with some of our most difficult and complex work and he delivers every time."