4 New Square - Leading Commercial Barristers Chambers

Excellence.

A leading commercial barristers’ chambers.

Outstanding advocacy. Strategic advice. Client focus.

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Featured news & judgments

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Articles & Publications

SRA Guidance – effective supervision following Mazur

Mazur

Two months on from the Law Society practice note entitled “Mazur and…

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News & Judgments

4 New Square Chambers shortlisted for 21 awards at the Legal 500 Bar Awards 2026

4 New Square Chambers are delighted to be nominated for 21 awards…

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Articles & Publications

Over to you, AI?

There’s been a sense of increasing unease from some professional bodies and…

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Featured podcasts

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Choosing Your Arbitration Tribunal – London Arbitration Week 2025

This podcast is a recording of the 4 New Square Chambers panel…

Featured events

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Jamie Smith KC speaking at IMC Professional Indemnity Conference 2026

28th August 2026
10am - 11am BST

Jamie Smith KC will be speaking at the IMC Professional Indemnity Conference…

We regularly advise on, and appear in, complex and high-value disputes in the Commercial Court and the Chancery Division of the High Court, as well as in international commercial arbitrations and commercial courts overseas.

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Construction & Engineering

Our barristers have considerable expertise in all types of construction and engineering disputes and disputes relating to all aspects of the energy sector, both domestic and international.

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Pupillage

A pupillage at 4 New Square Chambers will give you a real insight into what it is like to practise in a leading commercial set of chambers.

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Videos

Explore insights and thought leadership from 4 New Square Chambers.

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‘4 New Square is clearly one of the most impressive commercial sets in the country’

Legal 500

‘The practitioners here are in high demand, with instructing solicitors praising them for being at the top of their game.’

Chambers Global

‘Without doubt, one of the best chambers in England and Wales, unrivalled in the experience and abilities of its barristers’

Legal 500

‘The breadth and depth of their expertise is unparalleled.’

Chambers & Partners

‘Regularly called upon by both top international law firms and boutique litigation firms to act in high-profile contentious matters’

Chambers & Partners

If you would like to know more or have a question please talk to our clerks

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+44 (0)20 7822 2000

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general@4newsquare.com

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Featured news & judgments

SRA Guidance – effective supervision following Mazur

4 New Square Chambers shortlisted for 21 awards at the Legal 500 Bar Awards 2026

Over to you, AI?

Featured podcasts

Choosing Your Arbitration Tribunal – London Arbitration Week 2025

Featured events

Jamie Smith KC speaking at IMC Professional Indemnity Conference 2026

Featured areas

Commercial Litigation

Construction & Engineering

Pupillage

Videos

‘4 New Square is clearly one of the most impressive commercial sets in the country’

‘The practitioners here are in high demand, with instructing solicitors praising them for being at the top of their game.’

‘Without doubt, one of the best chambers in England and Wales, unrivalled in the experience and abilities of its barristers’

‘The breadth and depth of their expertise is unparalleled.’

‘Regularly called upon by both top international law firms and boutique litigation firms to act in high-profile contentious matters’

If you would like to know more or have a question please talk to our clerks

Call

Email

4 New Square Chambers

Sign up to our mailing list

Search

Leading commercial barristers’ chambers

Search expertise or people

Featured news & judgments

Featured podcasts

Featured events

Featured areas

‘4 New Square is clearly one of the most impressive commercial sets in the country’

‘The practitioners here are in high demand, with instructing solicitors praising them for being at the top of their game.’

‘Without doubt, one of the best chambers in England and Wales, unrivalled in the experience and abilities of its barristers’

‘The breadth and depth of their expertise is unparalleled.’

‘Regularly called upon by both top international law firms and boutique litigation firms to act in high-profile contentious matters’

If you would like to know more or have a question please talk to our clerks

Call

Email

4 New Square Chambers

Sign up to our mailing list

Search