Justin Sullivan

Founder & Chief Executive Officer


Justin is a Chartered Quantity Surveyor and current Chair of the Construction Industry Council (CIC). He has more than 30 years of experience in the construction industry specializing in project management, quantity surveying and project monitoring for commercial projects as well as being responsible for some of the most significant developments in the high-end residential sector over this period. Justin is also a Fellow of the Royal Institution of Chartered Surveyors (RICS), a Fellow of Expert Witness Institute, and Chair of the International Construction Measurement Standards Coalition (ICMS).

Justin heads up the Dispute Resolution team and is a leading independent Expert Witness. He has attended numerous mediations, hearings and has given evidence in the UK Technology and Construction Court and as recently as January 2022 in the High Court. He provides expert reports for construction disputes, in particular those relating to quantum, building defects, contracts, professional negligence, construction costs and fees. He is regularly appointed as a party representative in adjudication proceedings by referring or responding parties and is often instructed by solicitors to support adjudication proceedings for claimants or defendants.

“The Dispute resolution team at Adair draws on a vast range of experience across many different types of property dispute. They have proved their deep technical knowledge on numerous occasions, but what singles them out is their ability to understand what solicitors and the courts need from them as experts and how to assist with the litigation process Knowledgeable, helpful and efficient, they are a pleasure to work with.”
Edwin Coe

+44 (0)203 740 0162
+44 (0)7932 940 000