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Ciaran Williams Senior Associate

Ciaran has experience in a wide variety of construction and engineering matters and specialises in all forms of dispute resolution including court proceedings, arbitration and adjudication. 

Ciaran works on both UK and international projects and has significant experience across the main construction and energy sectors including major infrastructure, tunnel, rail, road, signalling, water treatment, oil and gas, biomass and nuclear projects.  He advises on the major standard forms of contract, such as NEC, JCT and FIDIC, as well as bespoke contracts.

Ciaran qualified as a solicitor in Northern Ireland in 2012 and subsequently qualified in England and Wales and in the Republic of Ireland.

Specialist expertise

Examples of Ciaran’s expertise include:

  • Acting for a rail provider on a multi-million pound adjudication brought by its contractor.  The contract was an amended NEC Option C and the works related to a major capacity improvement infrastructure project;
  • Advising an international contractor in relation to its dispute with an energy provider concerning the construction of a gas storage facility in the UK. This involved an adjudication followed by a negotiated settlement;
  • Advising a large oil and gas provider on potential claims and disputes in relation to a $3bn EPC contract based on FIDIC to engineer, procure, construct and commission a Liquefied Natural Gas Plant and Associated Facilities in West Africa;
  • Acting for an Irish contractor in a multi-million pound arbitration brought by its subcontractor (in administration);
  • Acting for a London housing association in relation to its dispute with a contractor over delays and other issues arising from an amended JCT building contract and a related agreement for lease;
  • Acting for a Local Authority on a multi-million pound dispute involving several adjudications.  The project concerned the construction of an underbridge beneath the UK West Coast mainline;
  • Advising a major rail provider on and drafting all contract documents for an Automatic Train Control signalling upgrade contract (c. £760m) using an amended NEC3 Option C.  This involved preparing the documents for the invitation to tender followed by detailed negotiations;
  • Acting for an institutional investor in relation to its claim against a contactor under a collateral warranty.  The claim concerns a defective roof on a large shopping centre.


Ciaran graduated from Queen’s University Belfast with a degree in Law in 2008 and then an MSc in Construction and Project Management in 2009 (dissertation on “The Mediation of Construction Disputes in the UK”).

Other activities and memberships

  • TeCSA 10s Committee Member;
  • Member of the Society of Construction Law;
  • Guest Lecturer, Queen’s University Belfast;
  • Freeman of the City of London Solicitors’ Company.