4 New Square Chambers features expertise across the construction sector, with members of the set regularly appearing before the TCC and appellate courts in claims involving professional negligence and insurance, among other matters. Leading silk Roger Stewart KC is currently representing Capita in the Capita v Phoenix TCC proceedings concerning an IT outsourcing agreement for a major construction project. On the junior side, Paul Cowan demonstrates notable expertise, having appeared in two major trials, successfully defending a public sector client and a leading architectural firm. Lucy Colter KC took silk in 2026.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 4NS is well-resourced and responsive to queries. The clerks are very approachable.
- The stellar clerks at 4 New Square always provide exceptional service. They are the best in class.
Lawyers
Leading Silks
KCs at the very top of their field, with a long-established record of market-defining cases, and widespread endorsement from clients and peers. All silks appointed in the last two rounds are listed further below.
Neil Hext KC
An expert in his field, he never loses sight of the big picture, is excellent with clients, is an outstanding advocate, and is an expert in his field.
Ben Patten KC
Ben gets straight to the point with a clear appreciation of the commerciality of pursuing claims. He is very user-friendly and makes himself available when needed.
2026 Silks
KCs at the very top of their field, with a long-established record of market-defining cases, and widespread endorsement from clients and peers. All silks appointed in the last two rounds are listed further below.
Leading Juniors
Leading juniors are those with significant experience of key cases, strong market recognition from both peers and clients, and are seen as future candidates for silk.
Benjamin Fowler
Benjamin is a real team player. He rolls up his sleeves to get to the crux of a matter and engages clients so that they feel heard and understood throughout the process. He provides clear and concise advice, which helps drive matters forward.
Hugh Saunders
Hugh is adept at distilling complex legal points, providing clear and confident commercial advice to clients and working efficiently with instructing solicitors.
Tom Asquith
Paul Fisher
Paul is a total superstar. He is forensic and has an incredible grasp of the details, which allows him to be agile on his feet at court. Above all, he is easy to work with and super professional.
Thomas Ogden
Timothy Chelmick
Tim is a very user-friendly barrister. He has significant experience in construction insurance disputes. He is a safe pair of hands and gets to the heart of the issues very quickly. He provides commercial, pragmatic advice. His advocacy is assured. He's eloquent and highly persuasive.
Chris Greenwood
Chris is absolutely commercial in all his advice and totally approachable to clients. He has an impressive command of vast detail and is fast on his feet. He is very responsive. His advice, written and oral, is always superb. Chris is notably excellent at dealing with experts and complex technical construction issues. He is incredibly sharp and a pleasure to work with.
Diarmuid Laffan
He has a forensic approach and always has an eye on the long-term prospects of a case.