API Ltd Board

The role of our Board is to be accountable to API Members whilst operating in a manner that is in the best interests of the Organisation. Consisting of the Chair, Elected Directors, Independent Directors and Non-Directors, the Board is committed to maintaining and delivering the highest standards for all property professionals. 

Elections are held annually and successful candidates announced shortly following our AGM. As a Membership organisation all API Members are encouraged to participate in the process from our Members either by nominating for vacant positions or by voting in the annual elections.


The API is committed to implementing and maintaining an effective and comprehensive Corporate Governance Policy and, in turn, practices and procedures. The policies, practices and procedures have been developed in accordance with the Australian Standard Good Governance Principles (AS 8000-2003).

API Whistleblower Policy

API is committed to identifying and calling out misconduct and harm. API values individuals who report potential misconduct or breaches of the law and takes these concerns very seriously.

If you would like to receive a copy of API’s Whistleblower Policy, please email [email protected].

Meet our Board Members

Diana D'Ambra

Independent Director


Diana is an experienced non-executive director and independent adviser.

Diana’s executive career includes more than 30 years as lead executive director in a global accounting firm delivering corporate finance, business valuation, and investment (merger & acquisition) advice across a number of industry sectors.

Diana now combines corporate finance, financial management, and related strategic advice with her board roles. Diana has a particular interest in start-ups/new business models and has successfully advised and facilitated founders on taking their business to market.

With more than 15 years of non-executive director experience, Diana currently is a board member on six boards, four of which she chairs. Diana is also an independent member of the audit, governance, and risk committee of the NSW Independent Commission Against Corruption (ICAC).

Diana’s focus is working with inspired people to help them achieve worthwhile change. Her bottom line is doing what works best for internal and external stakeholders.

Diana has a Bachelor and Master of Commerce from the University of NSW and is a fellow of Chartered Accountants Aust & New Zealand (CAANZ). Diana is also a graduate of the Australian Institute of Company Directors Course (GAICD) and a Fellow of the Governance Institute of Australia (FGIA).

Paul Billingham

Independent Director

Paul is a former senior partner with global accounting firm Grant Thornton where, up until his retirement in early 2021, over some 30 years he established and lead the firms Australian Financial Advisory and Consulting practices and chaired the Sydney office. Over his career, Paul has lead numerous complex assignments in the property sector, from restructuring businesses and building out developments; to the refinancing of over $7.6bn of syndicated bank debt to A-REITs during the GFC.

An experienced NED, Paul sits on and chairs several boards and board committees in the defence, professional services, property and leisure sectors and divides his time in fulfilling these roles by providing strategic, restructuring and M&A support to clients in a wide variety of industries.

Paul is a Fellow of both Chartered Accountants ANZ and of the Governance Institute of Australia, and a Graduate Member of the Australian Institute of Company Directors. A resident of Sydney’s Northern Beaches, he is married with a 16-year-old daughter and is a keen yachtsman – recently retiring as Commodore of the Cruising Yacht Club of Australia, home of the Rolex Sydney Hobart Yacht Race.

Katherine Bartolo


The Valuer-General of South Australia, Katherine Bartolo, grew up on the Central Coast of New South Wales before moving to Sydney for High School. She started in the property industry in 1999 where she has undertaken a wide variety of roles in her 20 years of being part of the property industry and completing a Post Grad Masters in Property through the University of South Australia. Elevating to management in 2008 and more recently as the State Director of the CBRE SA Residential Valuations Business which remained her position until she was appointed as the Valuer-General in January 2019.

Katherine’s passion and reason for joining the valuation industry comes from her love of architecture and a fascination with the property market and how it interacts and reacts to human influence as if it is a living organic organism.

In addition to her work within the valuation profession, Katherine has a great love for the community and volunteers her time to two not-for-profit organisations including sitting on the board of Directors for the Animal Welfare League of South Australia which stems from her passion in assisting people and her love of animals, especially her two dogs.

More recently, Katherine was elected by her peers to the Australian Property Institute National Board of Directors, commencing her two-year term in June 2020.

Michael Leech


Michael joined the API in 2013 and became the YPP National Representative in 2014. He is a member of various other professional groups and holds a Bachelor of Applied Science (Property and Valuation) from RMIT Melbourne.

Michael’s past experience includes:

  • Municipal Rating and Land Tax Valuation and assessment of commercial, industrial, residential and other types of real estate, predominately in metropolitan Melbourne and also throughout regional Victoria.
  • Compulsory acquisition and compensation, rating disputes
  • Experience in valuation of subdivisional lands including EstateMaster modelling.
  • Experience in undertaking project-based valuation work, Government assets, and Infrastructure.
Bart Charles Mead


Anne-Maree Moussa


Anne-Maree is a passionate property professional with diverse background and experience. She has over 18 years of industry specialisation having commenced her career as a property valuer.

Anne-Maree moved to a technical role, within the Valuation, Development, and Advisory Team at the Commonwealth Bank. She later transitioned to manage a portfolio of large institutional real estate clientele. Anne-Maree is directly responsible for the origination, execution, and management of complex real estate finance transactions across Australia and New Zealand.

She has served on various API committees, is a CPV Associate Member of the API, and a Graduate of the Australian Institute of Company Directors (GAICD). Anne-Maree holds a Bachelor of Commerce (Property Economics) from the University of Western Sydney.

Andrea Carolan


Andrea joined the API in 1987 and became a Fellow in 2014. She is the Managing Director of Public Private Property which is a niche provider of specialist valuation services focussing on land acquisition and compensation in addition to public sector financial reporting.

Prior to the commencement of Public Private Property in 2017, Andrea’s professional experience included periods spent at Maloney Field Services, JLL, Colliers and the State Transport Authority.

Andrea has a special interest in property sector education. She has presented for the API on numerous occasions over the years and continues to be directly involved in curating API education programs. She is the Immediate Past President of the Australian Chapter of the International Right of Way Association and is heavily involved with the delivery of IRWA’s Principles of Land Acquisition to Australian participants.


Andrea’s primary goals for her API Board tenure centre on the challenge of elevating the status of the valuation profession and to foster more collaborative discussions between all relevant stakeholders.

Gavin Hulcombe


Gavin joined the API in 1993, before being appointed a Fellow in 2010.

Gavin’s valuation career commenced with the Queensland Department of Lands before joining Herron Todd White in 1994 as a residential valuer. Since 2000, Gavin has specialised in the valuation of residential projects and subdivisions, having valued a number of Brisbane’s largest residential projects.

Gavin has gained valuable experience as a leader and company director inside and outside of Herron Todd White.

Gavin is a graduate of the Australian Institute of Company Directors.

He has served as Managing Director of the Herron Todd White Brisbane office since 2002. He was a member of the Herron Todd White Australia Board between 2005 and 2020 and served as Chair of the Herron Todd White board between 2008 and 2016. Gavin has served and chaired the Herron Todd White Finance and Risk Management Committee.

Scott Chapman


Scott has a breadth of property industry experience spanning 21 years, initially commencing in sales and commercial property management. Employed in the valuation industry for 14 years, he has been an Associate Member of the API since February 2009, initially commencing at Knight Frank Valuations before moving to Opteon in mid-2009. For the last 9 years, he has worked in various senior leadership roles at Opteon and is presently the Managing Director for Opteon Australia & New Zealand.

Robert Hecek

APIV Chair

Robert joined the API as an Associate in 1983, became a Fellow in 2000 and was appointed Life Fellow in 2016. He is also a Certified Practising Valuer and a member of the Australian Institute of Company Directors. Robert formed the valuation practice Valuecorp in 1980, based in Gladesville in Sydney, and employs 25 valuers, covering all facets of valuation and consulting work through NSW. Robert is currently Chair of the APIV Limited Liability Scheme.

  • API National President 2014/2015
  • Appointed to the Professional Indemnity Insurance Committee in its early beginning in 2003
  • The current chair of APIV Ltd (Limited Liability Scheme)
  • Current member of the  API Complaints Committee
  • Member of API International Committee
  • Elected to NSW Divisional Council in 2006 and was elected as Vice President NSW Division in 2008. He became the President of the NSW Division in 2009 and 2010 for two terms
  • Recipient of the S F Whittington Memorial Gold Medal in 2012 for outstanding contribution to API and the Property Profession
  • Current First Vice President and Executive Council Member of WAVO
  • Founding and current member of the International Fire Safety Standards Coalition, backed by UN and UK Government, formed at the UN in Geneva in July 2018

With the cooperation and input of all stakeholders and major valuation firms, Robert completed and implemented the Australian Banking and Finance Industry Residential Valuation Standing Instruction – the first of its kind for the Australian valuation industry. All valuers now complete an annual, mandatory, competency-based, online module testing their knowledge and understanding of the standing instructions.

Robert has also presented as a delegate at numerous Property conferences worldwide on Fire Safety and Valuation issues and advances in professional standards.