Department profile
4 New Square Chambers

Costs Litigation

UK Bar Guide 2026 : All Circuits


4 New Square Chambers

Rankings

Chambers Review

Provided by Chambers

Costs Litigation - All Circuits

Band 1

Band 1


What the Team is Known For

4 New Square Chambers has expert practitioners at both silk and junior level. Its members handle the leading costs matters, as evidenced by their involvement in Belsner v Cam Legal, which was dubbed 'the costs case of the decade'. This year, members are involved in high-profile matters including Ivanishvili v Signature Litigation and Menzies v Oakwood Solicitors. Individuals often handle group litigation costs matters, inter partes cases and solicitor-client disputes, and routinely appear before the Court of Appeal and Supreme Court. Further capabilities include the drafting of conditional and contingency fee agreements. A source remarked: "The team at 4 New Square has strong juniors as well as established King's Counsel." Similarly, another instructing solicitor stated: "4 New Square has formidable expertise across every aspect of the costs and litigation funding area."

Lizzy Stewart is the senior clerk.

Strengths

Provided by Chambers

  • The clerks are very good. They are professional, commercial, responsive and modern in their approach.

    Costs Litigation respondentUK Bar
  • The clerks are always very diligent and friendly in their approach.

    Costs Litigation respondentUK Bar

Notable Practitioners

Provided by Chambers

  • Star IndividualsBenjamin Williams
    Star IndividualsBenjamin Williams

    Benjamin Williams

    Benjamin Williams KC is a stellar advocate who draws praise for his expertise in costs litigation and who is particularly well known for his handling of cases with technically challenging aspects to them. He frequently handles matters at the highest level, and has been active in a number of precedent-setting cases in the Court of Appeal.

    • Benjamin Williams is regarded as one of the two leading lights at the Bar in this space. He knows his subject matter inside-out.

      Costs Litigation respondentUK Bar
    • Ben is in the very top echelon. Despite what is often a dry subject matter, Ben never fails to enliven submissions with sparkling wit.

      Costs Litigation respondentUK Bar
    • A very good, skilled advocate who is very quick to pick up key points.

      Costs Litigation respondentUK Bar
    • An excellent and eloquent silk.

      Costs Litigation respondentUK Bar
    • Benjamin Williams is an excellent source of knowledge.

      Costs Litigation respondentUK Bar
  • Star IndividualsGeorge McDonald
    Star IndividualsGeorge McDonald

    George McDonald

    George McDonald represents a range of clients in complex costs disputes, and has particular experience of handling specific costs issues relating to large group actions and complicated funding structures. He is experienced at representing clients before the Supreme Court and is a past master at handling solicitor-client disputes. McDonald is regularly instructed as sole counsel in major pieces of litigation.

    • George has an encyclopaedic knowledge. He is very practical in his approach and is solutions focused - a real details person.

      Costs Litigation respondentUK Bar
    • George is fantastic - smart, enthusiastic, very hard-working and a pleasure to deal with.

      Costs Litigation respondentUK Bar
    • George is at the top level for senior juniors specialising in costs. There are simply no weaknesses in his skill set. When handling high-value and complex work, his grasp of the detail is exemplary.

      Costs Litigation respondentUK Bar
  • Star IndividualsNicholas Bacon
    Star IndividualsNicholas Bacon

    Nicholas Bacon

    Nicholas Bacon KC is a distinguished advocate in the costs litigation sphere who heads the set's costs team and boasts an enviable résumé, having led cases in the Supreme Court and appeared in numerous other significant appeals. He has represented the General Council of the Bar as intervener in a seminal case on the operation of Damages-Based Agreements.

    • There is a simple reason that Nick is the most in-demand costs silk. In every case, you always know he is on your side and that he is clear-sighted and relentless in pursuing the best outcome.

      Costs Litigation respondentUK Bar
    • He is the costs KC of his generation.

      Costs Litigation respondentUK Bar
    • Nicholas is absolutely brilliant; he is very client-focused and user-friendly.

      Costs Litigation respondentUK Bar
  • Star IndividualsRoger Mallalieu
    Star IndividualsRoger Mallalieu

    Roger Mallalieu

    Roger Mallalieu KC is a highly experienced silk who frequently represents parties in solicitor-client disputes, third-party costs cases and CFA compliance matters. He has vast experience of representing clients before the Court of Appeal and is frequently instructed in the most complex, high-profile cases. He is regularly called upon by insurers and solicitors' firms to provide guidance on costs matters, and is well known for advising on group litigation proceedings.

    • Really excellent, user-friendly and quick to get to the crux of very complex issues.

      Costs Litigation respondentUK Bar
    • An awesome advocate, who is always thoroughly prepared. He has an unflappable, steely manner and brings clarity and focus to the issues before the court.

      Costs Litigation respondentUK Bar
    • He has a considered, thoughtful and gentle advocacy style.

      Costs Litigation respondentUK Bar
    • He is calm and authoritative on his feet and strategically very savvy.

      Costs Litigation respondentUK Bar
  • Band 1Matthew Waszak
    Band 1Matthew Waszak

    Matthew Waszak

    Matthew Waszak advises on a broad range of litigation funding issues and is instructed to draft bespoke CFAs and damages-based agreements. Additionally practising in personal injury cases, he is further known for his knowledge of after-the-event premiums. He appears before the SCCO, Regional Costs Judges, the County Courts and the High Court. Of late, Waszak has been seen advising or arguing costs issues in major group litigation.

    • He is a superb advocate who is very bright. He represents a nice combination of clarity, intelligence and charm.

      Costs Litigation respondentUK Bar
    • He works extremely well with senior costs lawyers to ensure that the client receives a seamless service. His advocacy is crisp and persuasive.

      Costs Litigation respondentUK Bar
  • Band 1Simon Teasdale
    Band 1Simon Teasdale

    Simon Teasdale

    Simon Teasdale has a practice that is deeply focused on costs. He demonstrates particular specialism in the areas of solicitor-client disputes, and points of principle in relation to the application of QOCS and the Fixed Costs regime in Part 45. He is often seen on high-value and complex costs matters, both led and unled.

    • His written advocacy is what one would expect from a top silk and he is an exceptionally talented advocate with razor-sharp insight.

      Costs Litigation respondentUK Bar
    • A fantastic advocate, who is delicate and precise with his submissions.

      Costs Litigation respondentUK Bar
    • Extremely responsive, technically adept and commercially minded in equal measure.

      Costs Litigation respondentUK Bar
    • Simon commands the room and takes all matters and issues in his stride.

      Costs Litigation respondentUK Bar
  • Band 1Stephen Innes
    Band 1Stephen Innes

    Stephen Innes

    Stephen Innes complements his professional negligence offering with a busy costs practice, and regularly appears in the SCCO, often in cases concerning points of principle of wider application. He is further known for his handling of matters concerning costs issues relating to prominent and widely covered criminal cases. He is additionally qualified as a costs mediator with CADR and accepts instructions on a direct basis.

    • Stephen is a very accessible and commercial barrister, whose written work is outstanding.

      Costs Litigation respondentUK Bar
  • Band 2Daniel Saoul
    Band 2Daniel Saoul

    Daniel Saoul

    Daniel Saoul KC is an impressive silk, previously qualified as a solicitor advocate, who frequently handles solicitor-client costs disputes and costs matters arising out of substantial commercial litigation. He also has experience of practising as an attorney in the British Virgin Islands. He has been instructed in some of the most significant costs disputes in the High Court and beyond.

    • He is very well respected by judges and contemporaries when it comes to costs. He is an authority on the subject, who gives very pragmatic, straightforward advice.

      Costs Litigation respondentUK Bar
  • Band 2Robert Marven
    Band 2Robert Marven

    Robert Marven

    Robert Marven KC is well versed in costs, CFAs, fixed-fee regimes and litigation funding (including commercial funding for significant disputes). His client roster includes public bodies, insurers and private individuals. He has good experience of representing clients before both the Court of Appeal and the Supreme Court.

    • Robert is razor-sharp, has encyclopaedic knowledge, is an outstanding advocate and is both diligent and hard-working.

      Costs Litigation respondentUK Bar
  • Band 3Ben Smiley
    Band 3Ben Smiley

    Ben Smiley

    Ben Smiley has a vast amount of experience in costs litigation matters. He has notable expertise in high-profile solicitors' liens disputes and non-party costs orders matters, with particular experience of applications for wasted costs orders. He has appeared at various levels of court including the Supreme Court.

    • Very personable, client-friendly and someone who is confident in giving advice and sticking with it.

      Costs Litigation respondentUK Bar
    • Very friendly, hard-working and a true pleasure to work with. He gets up to speed quickly and displays exceptional attention to detail.

      Costs Litigation respondentUK Bar
  • Band 3Pippa Manby
    Band 3Pippa Manby

    Pippa Manby

    Pippa Manby has a busy practice in costs law, where she is highly regarded for her advocacy and advisory skills. She is instructed in inter partes disputes and solicitor-client disputes in the County Courts, High Court and Senior Courts Costs Office. Her practice covers the full range of costs work, and in particular regularly includes instructions stemming from large Commercial Court trials.

    • An excellent junior, who is impressive both in terms of her oral advocacy and written work.

      Costs Litigation respondentUK Bar
  • Band 3Theo Barclay
    Band 3Theo Barclay

    Theo Barclay

    Theo Barclay advises on a full range of costs matters. He has in-depth experience in the sector, having appeared in several high-profile costs cases in recent years and at various levels of court including the Supreme Court. He also regularly appears before the Senior Courts Costs Office. Barclay acts in cases both led and unled, and has an international element to his costs practice.

    • He is very commercial in his outlook and is both bright and highly capable.

      Costs Litigation respondentUK Bar

Ranked Barristers at 4 New Square Chambers (12)

All Circuits

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership