Katherine Calder

Katherine is a Senior Consultant with BCLP with 19 years’ experience of advising public bodies, utilities and the private sector on public procurement, State Aid and public law/vires issues. Katherine has acted on a wide variety of PPPs, PFIs, and outsourcing projects, across sectors and covering most aspects of local and national public infrastructure, from new homes, schools, energy facilities, roads to IT projects.

Highlights include numerous education, waste and housing PPPs/PFIs; the 2012 Olympic Games; the Thames Tideway Tunnel super-sewer; high profile defence agreements; the Smart Motorways Alliance and other significant partnerships for the Highways England, the Metropolitan Police, Thames Water, Transport for London, the Greater London Authority and others.

Katherine has been ranked for procurement in Chambers & Partners UK for many years and for Government Contracts in Who’s Who Legal. She also holds a diploma in local government law. Chambers & Partners quote a client as saying: “excellent, responsive and a pleasure to work with”.
Contributed to


Introduction to concession contracts procurement
Practice notes

This Practice Note provides an overview of the public procurement regime for concession contracts under the Concession Contracts Regulations 2016. It considers the definition of a concession contract, the types of concession contract caught by the regime, specific situations and exclusions and the key procedural requirements.

Practice areas


  • History BA Hons 2:1 (1998)
  • CPE - Distinction (1999)
  • LPC - Commendation (2000)


  • Procurement Lawyers Association


  • Contributing Author


  • University of York (1995-1998)
  • York School of Law (1998-2000)

If you expected to see yourself on this page, click here.