Thomson Reuters names eight Keystone Law partners in its Stand-out Lawyers Guide 2026
Andrea James, Andrew Darwin & Anna McKibbin
David is a construction lawyer and solicitor advocate of the Senior Courts, specialising in resolving disputes through arbitration, mediation, adjudication, expert determination, and complex litigation. He has expertise in risk management, dispute avoidance, and resolution for a broad range of clients involved in building and engineering projects worldwide. David also represents clients before the courts and professional bodies such as ARB and RIBA.
David also advises on crisis and reputation management and his experience covers fatalities, construction collapses, and urgent court applications for injunctive relief.
David represents contractors, developers, and public authorities in a wide variety of construction disputes, offering strategic advice and advocacy across adjudication, litigation, and negotiated settlement processes.
Experience
David has advised on multi-jurisdictional infrastructure and energy projects, particularly in the Middle East, Australia, and South America, guiding clients through legal, regulatory, and dispute issues in international settings.
Experience
David is highly experienced in marine and coastal infrastructure matters, including dredging, offshore piling, port construction, and marine environmental enforcement, acting for contractors, ports, and developers across the UK.
Experience
David has extensive experience advising on the procurement and delivery of complex construction projects, including hotel and energy infrastructure, ensuring legal and commercial risks are managed from the outset.
Experience
David has acted in numerous reported decisions in the TCC and administrative courts.
Experience
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Recognised by Chambers UK as a leading lawyer for Construction Thames Valley 2026
Recognised by The Legal 500 Hall of Fame for Construction law 2024 – 2026
Recognised by The Legal 500 for Property Litigation 2024
Central Dredging Association (CEDA)
Chartered Institute of Arbitrators
Committee Member of Thames Valley Branch of the Chartered Institute of Arbitrators
Society for Construction Law
Solicitors’ Association of Higher Court Advocates
Lecturer and Tutor at King’s College
“David Gwillim is experienced, pragmatic and efficient. He is adept at managing large teams of lawyers, witnesses and experts. On top of that, he is a gentleman and a pleasure to work with.”
The Legal 500 2024
“David Gwillim is noted for his proficiency in disputes concerning delay, disruption and loss and expense claims, among other matters. He frequently represents contractors and developers in mediations, adjudications and proceedings before the Technology and Construction Court.”
Chambers UK 2023
“Highly personable; high attention to detail; active case manager; widely respected by the industry; a trusted lead in complex, multi-party litigation.”
The Legal 500 2023
David qualified as a solicitor in 1981. Prior to joining Keystone Law in 2024, he worked at the following firms: