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Who's Who Legal
Who's Who Legal

National Leader

WWL Ranking: Recommended

WWL says

Graham Topp draws praise for his adept handling of quantum matters, with one source stating, “Graham’s articulation of the reasoning behind his assessments is persuasive.”


Graham is a chartered quantity surveyor with the Royal Institution of Chartered Surveyors and a certified quantity surveyor with the Australian Institute of Quantity Surveyors. His areas of expertise include the quantification of defective works and the valuation of delay, disruption and additional work claims. He has strong forensic analysis skills and is absolute in his management of process and procedure. Graham’s extensive knowledge of construction costs, coupled with a detailed understanding of construction law principles, has provided a basis for more than 15 quantum expert appointments. He has prepared joint reports and has given expert opinion at dispute forums.

Graham has a comprehensive knowledge of contractual relationships and valuation mechanisms, gained from working on live projects in the infrastructure, petrochemical, mining and power industries. These projects have ranged from capital maintenance schemes to multibillion-dollar, pit-to-port, debt-funded mining projects. 

Graham mainly operates from HKA’s Brisbane office. He is regularly appointed to quantum matters throughout the Asia-Pacific region, including disputes determined in litigation, arbitration, adjudication, expert determination and mediation. Graham is a member of the Chartered Institute of Arbitrators. He holds a BSc in quantity surveying and a master’s degree in construction law. 

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