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4 New Square Chambers

International Arbitration: Construction/Engineering

UK Bar Guide 2026 : London (Bar)

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4 New Square Chambers

Rankings

Chambers Review

Provided by Chambers

International Arbitration: Construction/Engineering - London (Bar)

Band 3

What the Team is Known For

4 New Square Chambers enjoys a strong reputation for its international arbitration offering. The barristers advise contractors, project owners, architects, engineers and government parties on disputes. The team has notable experience representing parties in arbitrations concerning megaprojects, such as traditional and renewable energy platforms and civilian infrastructure projects. The team has conducted proceedings under the auspices of the major institutional authorities, such as the ICC, UNCITRAL, the LCIA, DIAC and ADCCAC. Regional expertise includes the Middle East, Africa, Europe and Asia. An interviewee reports: "4 New Square Chambers has a broad range of silks and juniors who have a proven record in complex infrastructure arbitrations involving construction and engineering."

Lizzy Stewart is the senior clerk.

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Strengths

Provided by Chambers

  • The clerks are all excellent, attentive and a real pleasure to work with.

    International Arbitration: Construction/Engineering respondentUK Bar

  • Always excellent, a great responsive team.

    International Arbitration: Construction/Engineering respondentUK Bar

  • The clerks as excellent - they know their barristers and give excellent advice and are a pleasure to deal with.

    International Arbitration: Construction/Engineering respondentUK Bar

Notable Practitioners

Provided by Chambers

  • Roger Stewart
    Roger Stewart

    Roger Stewart

    Roger Stewart KC is a well-respected KC with an impressive international arbitration practice. His work has traditionally focused on construction and professional negligence cases but also extends to other areas. His experience includes arbitrations concerning technology, commercial and residential developments, and airport and maritime projects. He has accrued significant knowledge of handling high-value claims and counterclaims.

    • Roger is a hugely intelligent silk and an excellent advocate who adopts a collegiate and commercial approach.

      International Arbitration: Construction/Engineering respondentUK Bar
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  • Tim Chelmick
    Tim Chelmick

    Tim Chelmick

    Tim Chelmick is renowned for his ability to provide counsel on arbitrations in the Middle East. He is well versed in handling matters arising from infrastructure projects. He has considerable experience acting in proceedings under the auspices of ICC.

    • Tim Chelmick is really fantastic.

      International Arbitration: Construction/Engineering respondentUK Bar
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  • Cyril Chern
    Cyril Chern

    Cyril Chern

    Cyril Chern earns praise for his deep expertise in the construction and engineering space, honed over a distinguished 40-year career. He is considered a go-to choice of counsel for bet-the-farm disputes concerning mega-projects across the world. He has particular experience advising across Africa and Asia. He is qualified as a chartered architect, structural engineer and arbitrator, bringing further value to his clients.

    • His dual qualifications as barrister and engineer as well as his international reputation bring him to the front in any major complex high-value matter where real knowledge counts.

      International Arbitration: Construction/Engineering respondentUK Bar

    • He is the ultimate person to use for international arbitration matters dealing with construction and engineering. He literally wrote the book on this subject.

      International Arbitration: Construction/Engineering respondentUK Bar
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Ranked Barristers at 4 New Square Chambers (3)

London (Bar)

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