Ian Robinson, BSc (Hons) LLB (Hons) MRICS ACIArb




Ian is the Principal at Tempus Delay Analysis and leads a specialist team providing advice, support and expert analysis services on delay and disruption disputes. His specialisms include delay and quantum assessment including, but not limited to, advising on (and giving expert evidence in relation to) disputes in respect to major building and civil engineering schemes.

Work has involved demonstrating the cause, extent and cost consequences of varied work, delay and disruption involving, amongst other things, bulk earthmoving and major roadworks, the construction of power stations and oil platforms and pipelines, flood damage, the construction of reinforced concrete walls and bridges etc. Work has also involved advising architects and engineers on delay/extension of time issues during the course of projects. Ian also has extensive experience acting as the expert in which oral evidence has been given.

As well as his experience in Delay Analysis, Ian has also co-written a number of publications including the Aqua Guide to Procurement, Tendering and Contract Administration.





Chris Dean, BSc (Hons)  ACIArb



Senior Associate

Chris is a Senior Associate at Tempus Delay Analysis and was one of the key people to set the firm up in 2012, having already worked with Ian for several years previously. With over 15 years of experience in construction delay analysis on claims ranging in size from £1m residential refits to $300m power station disputes, Chris has a detailed knowledge of the techniques and skills required to undertake detailed forensic analysis. Having worked for both claimants and respondents in a variety of different construction disputes, Chris has extensive knowledge of the processes involved in the different dispute resolution methods including adjudication, arbitration and litigation.

Chris has produced delay and disruption claims to support contractor claims for extensions of time on large EPC projects, all of which have led to successful resolutions for the contractor. In support of these claims, Chris has acted on behalf of contractors in negotiation meetings, presentations and hearings to support the contractor’s position. This experience has given Chris a valuable insight into the challenges that contractors and employers face when delivering large EPC contracts.

Chris has carried out many different types of delay analysis including as-planned versus as-built and a number of large complex time-impact analyses, both supporting claims for extension of time and defending them. These have been supported by written reports capable of withstanding cross-examination.

In addition to forensic delay analysis, Chris is also familiar with the application of 4D planning which he has successfully used to illustrate critical delay. Chris co-presented the 2017 Practical Scheduling Delay Analysis course hosted by Asta PowerProject and has presented training courses on delay and disruption to clients in Spain.




Lee Mallek, BSc BEng (Hons) LLM FCIOB ACIArb AssocRICS AMAE



Lee has over fourteen years’ experience working for Main Contractors in preconstruction, site management & project planning and five years’ experience providing planning support, recovery measures, project and programme management, forensic delay analysis for Claims Consultants in the UK, Caribbean and Middle East.

He is an experienced construction and planning professional who has worked in a variety of project sectors including Commercial, Retail, Schools, Laboratories, Hospitals, Ministry of Defence, Sports Facilities, Scheduled Ancient Monuments, Civil Engineering, Power Plants, Chemical Plants and Utilities.

Lee is familiar with all delay analysis techniques, has completed a Master’s qualification in Construction Law and has considerable experience in the use of all forms of planning software including Primavera P6, Primavera P3, Microsoft Project, Asta Power Project and Primavera SureTrak.


Laura McNally



Practice Manager

Laura has been with Tempus from the very beginning, having already worked with Ian since 2010.

Laura is responsible for all aspects of managing the office, including the administrative, financial and HR tasks that come with assisting Ian in the running of the business, and keeping this very busy team organised.



Adam Hicks


Research Assistant


Adam joined Tempus Delay Analysis in 2018, shortly after graduating with an honours degree in geography.

Adam assists the delay analysts with various background and research tasks, including document and data control, examining contemporaneous documentation and producing chronologies.  Adam has a keen interest in the different methods of delay analysis and has been training to use the commonly used software, most recently completing a course in Asta Power Project.