Seán Hollywood

Quantum Expert

Expert Highlights

  • Quantity Surveyor with BSc in Quantity Surveying and MSc in Construction Law and Dispute Resolution, with over 25 years’ extensive International experience in both public and private sectors (Major International Contractors, Project Management Companies, Owners and Government Organisations)
  • Qualified as a Chartered Quantity Surveyor in 2008
  • Vast experience in providing claims guidance, contractual advice and expert analysis specifically relating to quantum. Prepared Contractors’ Claims for EOT and Prolongation, including Internal Prolongation Cost Evaluation Guides
  • Creation and / or analysis of claims and advice for arbitrations, mediation and settlement negotiations. Experienced in providing detailed rebuttal analysis.
  • Expert determination of cost to complete and cost of repairs including fully detailed construction cost estimates based on labor, material and equipment analysis
  • Experience in the procurement and commercial management of buildings, civil engineering based on drawings and specifications, schedules of work, bills of quantities or approximate quantities, schedules of rates, daywork rates or on a reimbursable basis. Target Cost, Lump sum or GMP forms of procurement
  • Extensive knowledge and understanding of all the major forms of contract including FIDIC, JCT, NEC, P3, CCDC and bespoke forms of contract, for construction and engineering projects
  • Led the team responsible for preparing new Construction Contracts (SANAD) in conjunction with the Supreme Council for the FIFA 2022 Stadiums in Qatar and nationally liaising with legal firms to prepare and guide them for COVID- related claims
  • Multi-industry experience including infrastructure, energy and heavy civil engineering
  • Led teams of consultants and contracts managers on various mega projects in UK, Ireland, Qatar, Dubai, Sultan of Oman, Kingdom of Saudi Arabia and North America
  • Substantial experience in the preparation and defense of claims related to additional cost and time to complete; for owners, contractors and project management companies
  • Experienced in mediation and ADR having worked on disputes of over $1billion and independently managed contracts in excess of $5 billion

Seán has worked in and has extensive project experience in many countries in Europe, Middle East and the North America. Seán is a Chartered Quantity Surveyor with over 25 years’ of construction-related experience. For the past 10 years, Seán has specialized in claims, dispute resolution, dispute avoidance and claims management on distressed projects.

Seán has worked on claims across numerous industries with experience in infrastructure/transportation, oil & gas, P3/ DBFO / PFI, nuclear, commercial and industrial, roads and bridges, light rail, hospitals, stadiums and hotels.

Seán brings a practical approach to claim analysis allowing him to be able to communicate, keep his client informed and provides clear and logical conclusions. Seán is experienced in the preparation of expert reports for arbitration, adjudication and litigation.

Seán has also published articles in Construction magazines and has presented at the Canadian Institute on Effective Project Management in a COVID Era: From Force Majeure to Defending Against Delays and Impact-Related Claims and has worked with legal team and companies in relation to COVID claims analysis.


MSc Construction law & Dispute Resolution, King’s College London
BSc (Hons) Quantity Surveying, University of Wolverhampton
RICS-Accredited trained Expert Witness

Professional Memberships

Fellow of the Royal Institution of Chartered Surveyors
Member of the Chartered Institute of Arbitrators
Fellow of the Chartered Institute of Building
PQS Member of the Canadian Institute of Quantity Surveyors served on the nominations committee for the selection of the CIQS Directors
Member of the Society of Construction law
Professional Member of the Dispute Board Federation