John C.A. Hayes, FRICS, FCIOB, MCIArb


JHayes LG Web 260x253Phone: 44 (0) 203 542 5095
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City: London, UK

For over 30 years, John Hayes has been employed by global construction organisations and is experienced in all forms of commercial management, financial reporting, financial governance, dispute avoidance and dispute resolution including the evolution and management of commercial strategies and the development of negotiation tactics. He has extensive experience in developing and quantifying value entitlements for loss and expense and delay and disruption matters. John has a solid working understanding of scheduling, productivity analysis, forensic cost and value analysis, risk management, project controls and training. John is experienced in mediation, adjudication and arbitration.

John has served in challenging environments in most construction sectors in the USA, Australia, France and the UK and strives to look for pragmatic remedies to commercial issues in a timeous and efficient manner. He has gained knowledge of and promotes best practice related to commercial process, procedures and behaviours.

John has worked with top rated tier 1 and 2 contractors, clients and consultants and has gained experience in how to develop effective processes in a limited resource environment.

Selected Project Experience
  • Preparation of commercial strategy across a number of interrelated military asset projects. Formulation of claim architecture and leadership of in house delay and quantum teams in claim preparation.
  • Research into ground conditions on tunnel project. Formulation of claims for unforeseen ground conditions and for delayed interface with parallel project. Represented Client on dispute resolution task force.
  • Claim research and preparation for change and delay on specialist heavy engineering factory. Leadership of in-house delay and quantum teams. Commercial input to multiple successful adjudications.
  • Research and claim preparation for ground conditions claim for runway extension to regional airport.
  • Preparation, in conjunction with expert team, of defense to claim on major wells/water transportation project in Middle East.
  • Research and preparation of defense to delay and change claim on major waste to energy plant. Represented Client on formal dispute resolution task force.
  • Research and report on claim for delay and change on major exhibition center in the Middle East. Advising in-house defense teams.
  • Research and advise for formal claim teams on major gas pipeline project in Australia. Preparation of critiques of claims for delay and change prepared by in-house team. Provision of guidance to external expert teams.
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Presentation College, Reading College of Technology


Fellow of Royal Institution of
Chartered Surveyors (FRICS)

Fellow of the Chartered Institute of
Builders (FCIOB)

Member of the Chartered Institute of
Arbitrators (MCIArb)

Member of the Society of Construction Law

RICS accredited faciliative and evaluative mediator

CIOB Academy Trainer

Accredited Chairperson for the final corporate member interview panel for the CIOB