Ian Mackie is a managing director in BRG’s Real Estate Valuation practice. He has over thirty years of experience of providing valuation services of commercial real estate investments for litigation, transaction, reporting and taxation purposes.

Mr. Mackie’s practice areas cover all aspects of commercial real estate and development valuation, including:

  • Real estate valuations for loss of profit and commercial losses calculations
  • Advising on the application of International Valuation Standards Council (IVSC) and RICS Global Red Book valuation standards for real estate investments, debt financing and development projects
  • Commercial real estate valuation and professional standards compliance expert evidence for contentious litigation
  • Valuations and expert opinions for real estate disputes involving commercial property valuation, transfer pricing of debt and purchase price allocation re-basing valuations

Mr. Mackie has advised upon the valuation and reporting of significant assets in the United Kingdom, Europe, Africa and Asia and has experience across a number of asset classes including mixed-use development, retail, infrastructure, commercial office, industrial and logistics investments, large hotel and leisure portfolios.

Mr. Mackie is a Fellow of the Royal Institution of Chartered Surveyors, a RICS registered expert witness, and a Fellow of the Association of Taxation Technicians. He has advised the Institute for Fiscal Studies, The Chartered Institute of Taxation, and the Royal Institution of Chartered Surveyors on commercial real estate valuation matters.

Before joining BRG, Mr. Mackie was a founding partner of an award-winning specialist taxation and real estate consulting practice; after the sale of the business to a global consulting firm, he became a partner and senior managing director at the firm.

Mr. Mackie is a recognized WWL Commercial Litigation 2023 Expert: “Ian Mackie is a well-regarded practitioner with vast experience providing valuations in complex contentious real estate disputes. One source highlights his “impressive thoroughness and attention to detail”.

Employment History

FTI Consulting
Senior managing director
2011 – 2019

2010 – 2011

Bourne Business Consulting
2002 – 2010

Arthur Andersen
Senior manager
1994 – 2002

Schal International Limited
Project cost manager
1991 – 1994

Areas of Expertise


University of Reading, United Kingdom
BSc (Hons), First Class, Quantity Surveying, 1991


University of Reading, Building Magazine Prize for top performing student in Faculty of Urban and Regional Studies, 1991