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Mark Lloyd-Williams


Mark is the head of the Construction and Infrastructure Disputes practice in London.



For over 35 years, he has been helping clients to resolve disputes arising from major construction and engineering projects through arbitration, litigation, adjudication and alternative forms of dispute resolution. Mark spent over 15 years in Hong Kong where he was head of the firm's Asian construction and arbitration practices.

Mark's clients include public and private owners, financiers, contractors and sub-contractors, engineers and other construction professionals with major projects across numerous jurisdictions including in Europe, the US, the Middle East, Asia and Africa. 

Mark has been involved in projects relating to a range of residential and commercial developments, hotels, airports, roads, bridges, dams, tunnels, light rail systems, water diversion and treatment schemes, piling and geotechnical matters, power stations, container terminals, sea outfalls and dredging.

His work involves the drafting and negotiation of contracts, forms of appointment and associated documentation for all types of projects undertaken on EPC, design and build and traditional engineer's design methods of procurement. He has advised on contracts on the FIDIC Red, Silver and Yellow books since 1981.

The majority of Mark's work has been in arbitration and he has led cases under the ICC, SIAC, HKIAC, UNCITRAL, LCIA and other major institutional rules.  He has also been appointed as arbitrator on a number of occasions, and is a Fellow of the Chartered Institute of Arbitrators.

Mark's expertise in construction disputes is recognised by his listings in both Chambers UK and the Legal 500. 

Mark's experience includes advising:

  • a member of a consortium of international contractors in an ICC arbitration against in respect of the termination of an €800 million construction contract for an international rail project
  • an international engineering company in relation to disputes arising out of the design and construction of a waste to energy project in the UK
  • an international contractor on claims for defects and delayed completion of a power station in the Philippines
  • international contractors in pursuing substantial claims arising from a water project in Southern Africa
  • a major UK international civil engineering company on claims arising out of a power project in the Middle East


Mark is a  Fellow of the Chartered Institute of Arbitrators and is admitted to practise in England and Wales and in Hong Kong.