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Philip Kolvin

Jack Barber

020 7242 4986
Daniel Gatt

Jack joined Cornerstone Barristers as a pupil in April 2021 and is currently in his practising second six.

During pupillage, Jack has worked on various matters for his supervisors and other members of Chambers in a range of areas including Public Law & Judicial Review, Planning & Environmental Law, and Housing Law.

Jack read for a B.A. (Hons) in History (First Class), and a Master's in British and European History (Distinction) at Magdalen College, Oxford. He completed the GDL and BPTC at City Law School.


Jack is currently completing his 12-month pupillage under the supervision of Dr Ashley Bowes, Andrew Lane, and Edward Grant. Under their supervision, he has worked on various matters for them and other members of Chambers.

With Dr Ashley Bowes, Jack built awareness of the specific challenges facing developers, local authorities, landowners, and residents' groups throughout the planning process. He engaged with many aspects of the development and use of land, including planning, property, public rights of way, and local government law. Jack has drafted pre-action protocol response letters, Statements of Facts and Grounds, Summary Grounds of Resistance, and skeleton arguments associated with judicial review challenges in the Planning Court, including in relation to public rights of way, habitats and environmental impact assessments.

He assisted with the preparation of a party's submissions in the DCO process for the major infrastructure project of a proposed twin reactor nuclear power station at Sizewell C. He also drafted advice on matters engaging issues relating to highways, the interpretation and legality of planning conditions, environmental regulation, compulsory purchase, adverse possession and boundary disputes.

With Andrew Lane, Jack gained experience of a range of matters relating to housing, homelessness and allocations, and licensing, and he observed a wide range of proceedings from housing possession trials to appellate advocacy in the higher courts. Jack drafted a skeleton argument for a Court of Appeal hearing on the proper approach to retrospective compliance with the public sector equality duty in the context of possession proceedings.

Other experience included drafting advice on the legality of a local housing authority's proposed amendment to its allocation scheme, drafting a skeleton argument for a homelessness appeal under section 204 Housing Act 1996, and drafting a respondent's notice in the context of an Upper Tribunal (Lands Chamber) appeal in relation to a council's decision to impose a financial penalty on a landlord for being in control of an unlicenced HMO.

Jack has been supervised by Edward Grant since 1 December 2021 and will encounter various issues arising in the context of public inquiries and enforcement matters.

Professional background

Jack has previously acquired both public and private sector legal and policy experience.
Before pupillage, Jack worked as a researcher for a public law academic on a monograph exploring the constitutional relationship between central and local government, and as lead paralegal for government decision-making at the Infected Blood Inquiry.

During his legal studies, Jack was a legal volunteer in Islington Law Centre's housing team, where he supported a solicitor's advice clinics. He also represented school pupils in school exclusion hearings. During the BPTC, Jack won first prize in a national planning and environmental law judicial review mooting competition organised by another Chambers.

Jack was selected as Hanover Communications' inaugural Mackay Award winner in 2016. He spent five weeks in Washington, D.C. during the presidential election and produced a report considering how electoral authorities might adapt to the latest innovations in political campaigning.

Jack worked within Hanover's government and public affairs team advising various multi-national clients on political, regulatory, legislative, and reputational issues, including on major infrastructure, environmental, and public service outsourcing matters. He maintains an interest in regulatory and governance issues: his recent article proposing reform of UEFA's Financial Fair Play Regulations won first prize in the Association of Regulatory and Disciplinary Lawyers' Marion Simmons QC essay competition (2020).


Jack read for a B.A. (Hons) in History (First Class), and a Master's in British and European History (Distinction) at Magdalen College, Oxford. As an undergraduate, he was awarded the Ewen Green Memorial Prize and an Academic Demyship. Jack completed the GDL and BPTC at City Law School and was called to the Bar in 2019 by the Inner Temple having received a Major Scholarship (GDL), an Exhibition Award and a Duke of Edinburgh Award (BPTC).