Jonathan Brown


Expert Information
Qualifications BSc (Hons) Quantity Surveying
Professional Memberships MRICS, AAIQS
Contract Experience FIDIC, AS2124, AS4000, NEC3, JCT, Bespoke
Services Quantum
Sectors Buildings, Transportation Infrastructure, Industrial & Manufacturing, Power & Utilities, Oil & Gas
Expert Highlights
  • Testified for project disputes in excess of $30 million.
  • Proven as credible witness under cross-examination.
  • Acted as quantum expert and adviser on more than 10 occasions.
  • Extensive contract and commercial experience.
  • Proactively manages complex construction disputes.

Jonathan is a Chartered Surveyor with more than 25 years of experience in the commercial and contract management of projects in the UK, Middle East and Australia.  He has been appointed as quantum expert on ten occasions.

Jonathan has testified as a quantum expert in the supreme court of Western Australia, including giving concurrent evidence (hot-tubbing). He provides impartial advice on disputes and acts as a quantum expert in mediation, adjudications, arbitrations and expert conferrals.

Jonathan’s experience spans commercial, social, education, mining, oil and gas, infrastructure and utilities projects. He provides strategic procurement advice, tailored to client risk profiles and specific project drivers, and implements these strategies through a project’s design and construction phases.

Jonathan has significant experience in first principles estimating, for estimates of all classes prior to tender, and for variation and claim assessment during and following construction. He has developed and audited CAPEX estimates for mining process plants and associated infrastructure in Australia and overseas.

Jonathan holds a degree in quantity surveying, is a member of the Royal Institution of Chartered Surveyors (RICS) and an associate of the Australian Institute of Quantity Surveyors. He is also an assessor for the RICS assessment of professional competence (APC).

Contact Jonathan
Location Perth, Australia

Contact Jonathan