Sean Allen

Sean’s areas of expertise include tendering and procurement; contract administration and commercial management; valuation of works, variations, and contra charges; dispute avoidance and management; and quantum analysis.

Sean’s professional experience includes:

• Road Infrastructure Project, Afghanistan (Arbitration, 2018): Assistant to the quantum expert on a termination claim on behalf of a contractor who was party to an arbitration as the claimant. Analysis involved assessment of the claimant’s prolongation, suspension and disruption costs, and losses suffered due to the termination. Claims totaled circa US $52 million.
• Road Infrastructure Project, Trinidad and Tobago (Arbitration, 2018): Lead assistant to the quantum expert on a termination claim on behalf of an employer who was the respondent to a contractor claim in an arbitration. Analysis involved an assessment of the claimant’s valuation of completed works and loss suffered. Claim totaled circa US $127 million.
• Water Infrastructure Project, Bangladesh (Arbitration, 2017 – 2018): Lead assistant to the quantum expert with a termination claim on behalf of a contractor who was the respondent to a subcontractor claim in an arbitration. Analysis involved an assessment of the increased cost of completion to the contractor. Claims and counterclaims totaled circa US $26 million.
• Road Infrastructure, Romania (Arbitration, 2017): Lead assistant to the quantum expert on a termination claim on behalf of a contractor who was party to an arbitration as the claimant. Analysis involved valuation of completed works and assessment of actual costs incurred. Sean also attended the ICC arbitration hearing in which he was required to give evidence to clarify some matters. Claims totaled circa US $19 million.
• Lusail City, Qatar (Arbitration, 2016 – 2017): Assisted the quantum expert on a significant prolongation claim on behalf of a contractor who was party to an arbitration as the claimant. Analysis involved reviewing, identifying, and assessing the actual time-related costs. Prolongation claim totaled circa US $260 million.
• Hammad International Airport, Qatar (Arbitration, 2016): Assisted the quantum expert on a prolongation claim on behalf of a contractor who was party to two arbitrations with its employer and subcontractor, as respondent and claimant respectively. Analysis involved reviewing, identifying, and assessing the actual time-related costs. Prolongation claim totaled circa US$24 million.
• Gas Pipeline, Australia (Arbitration, 2014 – 2016): Assisted the quantum expert on a quantum meruit claim on behalf of a contractor who was party to an arbitration as the respondent. Analysis involved reviewing and assessing the reasonableness of actual costs. Quantum meruit claim totaled circa AU $915 million.
• Gatwick Airport, London UK (PQS Consultant, 2011 – 2014): Commercial manager for various retail projects with a combined value of circa £40 million. Responsible for projects from conception to completion, including management and resolution of all necessary contractual issues; including identification, preparation, and negotiation of any claims/disputes under NEC3 form of contract.
• 2012 Olympic Media Hub, London, UK (Main Contractor, 2009 – 2011): Quantity surveyor responsible for the managing several subcontractor packages with a combined value of circa £30 million, on a £300 million design and build project. Responsible for subcontract packages from conception to completion, working to NEC Options A & C contracts.
• Welsh Assembly Government Office, Aberystwyth, UK (Main Contractor, 2007 – 2009): Quantity Surveyor responsible for the managing several subcontractor packages with a combined value of circa £5 million, on a £20 million project. Responsible for subcontract packages from conception to completion, working to NEC Options A & C contracts.
• High Rise Residential Building, Cardiff, UK (Main Contractor, 2005 – 2006): Assistant quantity surveyor for main contractor assisting with the management of several subcontractor packages with a combined value of circa £600 thousand, on a £20 million project, under the JCT form of contract. Assisted the claims consultant with disputes that arose at the end of the project.