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John Jessup

Year of Call: 2014
Email Address: john.jessup@3pb.co.uk
Telephone: 020 7583 8055

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Construction and engineering

John originally embarked upon a Civil Engineering Degree and was on track for a 2:1 before realising that his true calling lay at The Bar.

As a result he has a strong grasp of construction theory and practice and a formidable level of technical knowledge.  John's working practice in areas of disputed fact is often to speak directly to employers, architects and contractors with whom he is able to converse at a technical level.

John has married his experience of complex commercial disputes to his technical background and is well-placed to advise and provide representation on all aspects of construction law. He is familiar with all standard forms of construction contract.

Recent cases

  • Advised on alleged variations to building works (homeowner occupier)
  • Advised on expert and client witness statements
  • Advised on prospects in claim against negligent surveyors re damp
  • Advised extensively on expert report
  • Drafted proceedings in dispute with builder over refitted kitchen
  • Advised and drafted proceedings in dispute with builder over swimming pool and garden works
  • Advised on prospects against an architect and site manager for defective works to a roof
  • Advised builders on prospects of defending claim by homeowner that they had not followed architect's drawings
  • Advised on prospects against installer of flooring after floor damaged by damp
  • Drafting proceedings for defects and counterclaim for wrongful termination – acting for builders
  • Advised as to prospects, settlement offers and witness evidence in plumbing works dispute regarding wrongful termination and defects
  • Advising and drafting proceedings in multi track claim for non payment of invoices in building works
  • Advised, contractor –v- sub-contractor – sub-contractor instructed to install glass partitions at mental health facility. Sub-contractor installs wrong thickness and type of glass.
  • Engaged in technical discussions with contractor regarding types of glass, thickness, and specification drawings
  • Advised and drafted correspondence – defective building works
  • Adjudication – advised on recovery where unknown to the parties. Matter governed by Housing Grants, Construction and Regeneration Act 1996.
  • Acting for Claimant Contractor
  • Representing Claimant – unpaid invoice for building works, counterclaim for defective works
  • Wrongful termination – in practice works not defective but merely unfinished.
  • Publications
    • 18th Jun 2020

      3PB construction and commercial/insolvency barrister John Jessup predicted on Tuesday June 9 at the 3PB construction law webinar that the Supreme Court may push open the door left slightly ajar by Lord Justice Coulson at the Court of Appeal in the case of Bresco v Lonsdale [2019] EWCA Civ 27.

      View Publication
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Academic qualifications

  • University of Wales, Swansea, LLB Law, 1st class degree (top 1st) (2011)
  • University of Oxford, Bachelor of Civil Law (2013)
  • Cardiff University, BPTC, Outstanding.


  • Best Orator, Oxford International Media Law Moot 2013
  • Semi-Finalist, Oxford International Intellectual Property Moot 2013
  • Beneficiary of the James Pantyfedwen Foundation, 2012
  • Iscoed Chambers Prize, 2011
  • Sweet and Maxwell Prize, 2011

Professional bodies

  • Chancery Bar Association
  • Technology and Construction Bar Association

Direct Access

John Jessup is qualified to accept instructions directly from members of the public and professional clients under the Direct Public Access scheme.

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