Dr Mark Friston > Hailsham Chambers > London, England > Lawyer Profile

Hailsham Chambers


Dr Mark Friston is a leading expert on the law of costs and is the general editor of the leading textbook on the topic, Friston on Costs.  His book, published by Oxford University Press is frequently cited in court, both in this jurisdiction and elsewhere.  For further details or to order please see here.

Mark is now in full-time practice where he advises on all aspects of costs and litigation funding. Legal 500 2021 states that Mark ‘‘has an encyclopaedic knowledge of the law and the costs judges respect him. He has a gentle manner and style but is not afraid to be persistent.”



Former Vice Chair of the Bar Council’s Remuneration Committee (2012 – 2018)

Member of the Royal College of Physicians (1993)

Registered medical practitioner (non-practising) (1989)

Trustee of the Behçet’s  Syndrome Society



Honorary Fellow of the International Institute of Legal Project Management (2018)

Judicial appointments:

Deputy Master, Senior Court Costs Office and Deputy Costs Judge, First-Tier Tribunal (2012)



Gonville & Caius College, Cambridge (Medical Science Tripos) (1986)

The Royal London Hospital Medical College (1989)

Member of the Royal College of Physicians (1993); University of Westminster (CPE) (1996)

Costs lawyer (non-practising) (2008)

Legal Project Practitioner (2018)


Lawyer Rankings

London Bar > Costs

(Leading Juniors)Ranked: Tier 1

Mark FristonHailsham ChambersMark has an encyclopaedic knowledge of costs law and practice and knows which arguments will find favour with the court and which will not.

Hailsham Chambers is a key set for costs matters, its group of barristers at the forefront of developments in the law and practice in this area. Members have been involved in important costs decisions at the Court of Appeal, one highlight being 2020 silk Jamie Carpenter KC acting for the latter party in Langer v McKeown, in which the Court of Appeal considered for the first time whether, at the conclusion of a trial of preliminary issues, a Calderbank offer which relates to the entire claim should be treated in the same way as a Part 36 offer. High-value solicitor client disputes have also been a feature highlight at chambers with Carpenter on the opposite side to experienced costs silk Alexander Hutton KC in Privinvest v Quinn Emanuel, Hutton acting for the former, in its application for detailed assessment for £14m of costs, which was settled in November 2021. Andrew Post KC practices in costs and criminal negligence, often acting where points of principle arise in large scale litigation, and on appeals where there are issues of wider significance. A particularly strong crop of juniors includes non-contentious costs specialist Mark Friston; senior junior Dan StaceyJoshua Munro, who has experience in costs disputes at the Court of Appeal, and the Supreme Court; and Imran Benson, who was appointed a Deputy Costs Judge at the Senior Courts Costs Office in August 2021.