All speakers are listed in alphabetical order by first name. Register here

Andrew Eagles

Chief Executive Officer, New Zealand Green Building Council

Andrew is a qualified economist with more than fourteen years’ experience in the built environment. Working for consultancies, associations, government and built environment charities, he has a wealth of knowledge in housing, market mechanism, advocacy and the construction supply chain.

Andrew joined the New Zealand Green Building Council in September 2016 as Chief Executive. The New Zealand Green Building Council is the country’s leading not-for-profit for the sustainable built environment. As well as exemplary research, the NZGBC oversees Homestar and Green Star the award winning certifications for New Zealand homes and buildings. NABERSNZ, the tool for confirming performance of offices in use, is also rising in popularity.

Becky Lloyd

Chief Executive Officer, Toitū Envirocare

Becky is Chief Executive of Toitū Envirocare, a New Zealand-based business providing environmental programmes and services to organisations in NZ and overseas. Based on science and backed by proof, our Toitū carbonreduce®, Toitū carbonzeroCertTM and Toitū enviromark® certifications give organisations the tools to reduce their carbon emissions and environmental impact.

Becky is an experienced business leader with boundless passion for sustainability. She has a broad blue-chip corporate background, a degree in Mechanical Engineering and an MBA from Columbia Business School (New York). She has extensive experience across a range of business disciplines, but particularly enjoys working with clients to drive positive change. Originally from the UK, she and her family are now NZ citizens, committed to supporting the protection and restoration of the beautiful NZ environment.

Becky believes that together we can build momentum, inspire change and collectively take credible action toward a sustainable low carbon world.

Brett Diprose

Associate Principal, Warren & Mahoney 

Brett Diprose has recently joined Warren and Mahoney's Melbourne studio as a registered Senior Architect after 19 years with his previous employer. 

Prior to joining Warren and Mahoney, Brett held the position of Associate Director with Peddle Thorp Architects. In this role, Brett was in charge of the Sports Architecture arm including a large portfolio of aquatic projects including Metro Sports Facility in Christchurch (a joint venture with Warren and Mahoney), Melbourne Sports and Aquatic Centre, Stage 2 (2006 Commonwealth Games and 2007 World Swimming Championships) Swansea and Charlestown Leisure Centres (DA Submissions) – Lake Macquarie City Council and Regional Aquatic Centres for the Hume City Council in Craigieburn and for the Banyule City Council in Greensborough Victoria. 

Brett believes a stadium or sports facility has the capacity to support and enhance the identity of a city. He believes the process of developing an understanding of our clients and their ambition for a project is of vital importance to creating a unique identity for any sporting project.

Cristina Gamboa

Chief Executive Officer, World Green Building Council

Cristina is CEO of the WorldGBC, the strongest local-regional-global network comprised of around 70 Green Building Councils and their 36,000 members catalysing the uptake of sustainable buildings for everyone, everywhere.

The WorldGBC global network delivers impact across three strategic areas—climate action, health & wellbeing, and resources & circularity and works with businesses, organisations and governments to drive the ambitions of the Paris Agreement and UN Global Goals for Sustainable Development. Through a systems change approach, this network is taking action to deliver a net zero carbon, healthy, resilient and equitable built environment.

Cristina earned a degree in Economics from the University of Los Andes and her master’s degree in International Relations and Economics from SAIS-Johns Hopkins University.

Davina Rooney

Chief Executive Officer, Green Building Council of Australia

Davina has led the Green Building Council of Australia since June 2019. The GBCA’s role is to lead the sustainable transformation of the built environment and has achieved over 2,500 certification with rating tool Green Star. Davina is a property professional with a broad range of sustainability experience, from environmental projects, not-for profit boards and overseas community development work, spending 8 months working in the Indian Himalayas on the construction of a school which won multiple international awards. Career highlights include a decade at Stockland which was a global leader in sustainability and therefore understands how the GBCA’s global leadership translates into real-world outcomes. Stockland was recognized in 2016 and 2018 simultaneously holding the Dow Jones Sustainability Index Global Property leader, GRESB Global leader (Retail/Office) and recognised on the CDP Leaders A-list.

David Haylock

Associate, Cosgroves 

David Haylock is an Associate, and Chartered Mechanical Engineer with Cosgroves, a multidisciplinary engineering consultancy. David’s career focus has been on improving the efficiency, quality and sustainability of New Zealand’s buildings and has worked on a wide range of projects from Green Star buildings as GSAP and Engineer, proposed District Energy Scheme in Christchurch, Modelling and design of cooling systems for an outdoor mall in Abu Dhabi, Water supply planning for large hotel and residence in Jeddah, Living building challenge in Glenorchy and Waste Managements’ industrial developments.

Dean Spicer

Head of Sustainable Finance NZ, ANZ

Dean has over 25 years’ experience in financial markets covering equities, funds management and debt capital markets,

including five years in the UK and Europe. He joined ANZ after returning from London in 2006, and until recently was Head of Capital Markets for NZ before taking up his current role to focus on  supporting the development of a sustainable finance market in NZ. He has as played an instrumental role in a range of landmark ANZ deals in New Zealand, including the inaugural green bonds for Auckland Council, Argosy Property, Contact Energy and recently Mercury New Zealand, as well as social housing provider Kāinga Ora’s sustainability bonds.

Dean graduated from Lincoln University with a Bachelor of Commerce and Management. He is a member of the CFA Institute, the Institute of Directors in New Zealand. Dean qualified as a CFA charterholder in 2003.

Denise Lee 

Head of Advocacy, Property Council New Zealand

Bringing a fresh perspective and strong political nous, Denise is well-known as the former New Zealand Member of Parliament (MP) for the Maungakiekie electorate and a former Auckland Councillor for Maungakiekie-Tāmaki.

Denise holds a BA in Political Studies and History and a Master of Arts in Public Policy and Theology, with specific skills in engagement and a natural ability to build rapport with stakeholders. Personable and warm, Denise’s exceptional strategic planning, communication and management skills are highly valued by both the Property Council team and its members.

Duncan Young

Head of Workplace Health and Wellbeing, Lendlease

Duncan Young is the Head of Workplace Health and Wellbeing at leading international property and infrastructure group Lendlease. He is a passionate advocate of the positive impact of workplaces on health, and is a thought leader on this. He believes that health is a journey and that small steps can lead to larger incremental change and help individuals to thrive, not just at work, but in life as well. His strategies and programs are based on research and grounded in the workplace environment, making them directly transferable between organisations.

Graeme Finlay

Chairman, Warren and Mahoney

Graeme is Chairman of Warren and Mahoney Limited the largest architecture and urban design practice in the NZ and one of the largest in Australasia. A registered architect in New Zealand and UK Graeme has 30 years’ experience and has led successful projects in the UK, Asia  and Australia and New Zealand. He has particular experience in the design of commercial and tertiary educational buildings and a passion for sustainable design. He was involved in the establishment of the New Zealand Green Building Council and held the position of deputy Chairman during the first 3 years of its establishment. He has led Warren and Mahoney’s sustainability strategy which has resulted in the practice being carboNZero for the last 12 years. By 2030, our  goal – with our clients – is that all new projects designed by Warren and Mahoney will be net-carbon zero in operation, be 50% more energy efficient and have 40% less embodied carbon.

Dr Joseph G. Allen

Associate Professor, Harvard TH Chan School of Public Health and Author

Dr. Joseph G. Allen is an associate professor at the Harvard T.H. Chan School of Public Health and co-author of Healthy Buildings: How Indoor Spaces Drive Performance and Productivity. At Harvard, Dr. Allen directs the Healthy Buildings program, where he created ‘the 9 Foundations of a Healthy Building’. He is also a Certified Industrial Hygienist and Deputy Director of the Harvard Center for Education and Research on Occupational Health and Safety. Dr. Allen has been a leading voice in the response to COVID-19. He is an expert member of the Lancet Commission for COVID-19, and has been advising CEOs across major sectors of the economy: healthcare, academia, finance, media, manufacturing, courts, prisons, shelters, and the arts.  He has also been translating the science to the business community and the general public, publishing more than 10 op-eds in leading newspapers translating science into actionable tips for the public.

Kate Archer

Associate Director, Sustainable Finance ,Westpac New Zealand Limited 

Kate is an associate director in Westpac New Zealand’s sustainable-finance team. She is responsible for providing sustainable-finance solutions for Westpac’s customers to help them achieve their sustainability goals. Prior to joining Westpac, Kate worked for the Global Real Estate Sustainability Benchmark (GRESB) in Amsterdam, with responsibility to develop and execute the firm’s assessment of sustainability performance for real-asset portfolios and assets. Kate has held a range of banking roles across commercial, corporate and project finance, at ASB Bank, Bank of America Merrill Lynch and Sumitomo Mitsui Banking Corporation in London.

Lloyd Budd

Chief Executive Officer,  Auckland Commercial and Industrial, Bayleys 

Lloyd is the Director for Bayleys Commercial & Industrial in Auckland and has 17 years of global experience across development, agency and leadership.

As a member of the Bayleys Executive Board, he is primarily responsible for the key initiatives which aid Bayleys’ cohesive growth across the national Commercial network. Drawing on his extensive international experience as Commercial Director for Majid Al Futtaim Properties in the Middle East, and national operations manager for Lendlease in Australia ensure he brings a unique, big-picture approach to innovation.

Lloyd also remains head of Bayleys’ commercial leasing team, where he utilises a wealth of experience working with the NZ Green Building Council to ensure workplaces are future-proofed for maximum productivity.

His continued desire to succeed has seen him graduate Harvard Business School’s Executive Education programme (2010) and awarded by the Property Council of New Zealand as the ‘Property Professional of the Year’ (2018).

Nadine Higgins (MC)

Master of Ceremonies, Leading business journalist, news presenter and professional host

Nadine Higgins (nee Chalmers-Ross) is an award-winning journalist and broadcaster with extensive experience across television, radio, newspapers and magazines. Nadine is renowned as a fiercely intelligent, articulate and engaging MC.

Nadine’s background in broadcasting and business journalism means she can quickly get to grips with complex topics, moderate multi-person panels and think on her feet when the best laid plans go awry.

Peter Mence 

Chief Executive Officer, Argosy Property Limited

Peter is the Chief Executive of Argosy Property Limited. An engineer by background, Peter has 40 years of experience in the property industry working with Progressive Enterprises, Challenge Properties, Richard Ellis and Green and McCahill. Peter joined Armstrong Jones (NZ) in 1994 and was appointed General Manager of Argosy (then known as ING Property Trust) in 2007. Instrumental in the rebranding and internalisation of the company’s management Peter was appointed Chief Executive of the business in 2009.

Peter is a Fellow of the Property Institute and is a past lecturer in Advanced Property Management at The University of Auckland and is a past President of the Property Council of New Zealand. He is a current Trustee of Saint Andrews Village, and the New Zealand Sailing Trust.

In 2013 Peter was honoured with the Stuart McIntosh award in recognition of his contribution to the University of Auckland.

Hon Poto Williams 

Minister for Building and Construction

Hon Poto Williams is the Labour Member of Parliament for Christchurch East, where she lives. Poto became the MP for Christchurch East at a by-election in November 2013. She is now the Minister for Building and Construction, Minister of Police, Associate Minister for Children and Associate Minister of Housing (Public Housing).

After gaining an MBA and Graduate Certificate in Research Methods from Manukau Institute of Technology and Southern Cross University, Poto has worked in and managing community health and community mental health services, residential disability services, working with single parent families, youth services, family violence and refuge. Working in mental health provided the opportunity to engage in strengths based, recovery focussed and client centred work, which has guided her practice ever since.

Poto is the very proud mother of Terai, grandmother of Bodhi and a member of a very large extended family in New Zealand, Australia and the Cook Islands.

Richard Hilder

Chief Financial Officer, Precinct Properties

Richard was appointed Chief Financial Officer in 2017, prior to this he held the role of General Manager of Finance. He is responsible for investor relations, financial planning and analysis, the execution of capital management initiatives and treasury management alongside leadership of the finance and analyst teams. He has been instrumental in developing and implementing Precinct’s longterm strategy.  Richard is also the Chair of Precinct's Sustainability Committee which encompasses ESG topics material to Precinct.

Prior to joining Precinct in 2010 Richard worked in the United Kingdom for Goodman Group’s European Funds Management business where he gained experience in capital structuring, fund management and developments in both continental Europe and the United Kingdom. Richard has worked for Goodman Property Trust and Trust Investment Management Limited in New Zealand. Richard holds a Bachelor of Commerce (Hons) (Finance and Economics) degree from University of Auckland.

Shamubeel Eaqub


Shamubeel is an experienced economist, financial analyst and author. He has worked in various banks and consultancies in New Zealand and Australia. He currently balances a portfolio of activities: consulting through Sense Partners, a boutique economic consultancy; various governance and advisory roles for firms and charities; and regular media contributor. He holds a BCOM(Hons) in Economics from Lincoln University and is also a Chartered Financial Analyst. He has authored several books – the most recent are Generation Rent and Growing Apart. Shamubeel lives in Auckland with wife, Selena, and sons, Haydn and Hugo. 

Stephen Walter 

General Manager, Emissions Budgets, Adaptations, and Markets, Climate Change Commission

Stephen Walter joined the Commission in April this year from the Ministry for the Environment. He has worked in climate change since 2005 across both the public and private sectors. In the public sector, his work covers operational, strategic, and international climate change policy. Key achievements include leading policy work on New Zealand’s 2050 target and New Zealand’s mitigation negotiations under the Paris Agreement. He holds a Master’s Degree in Climate Change Science and Policy (Distinction) from Victoria University.

Tessa Meyer

Programme Sustainability Lead - Capital Projects and Asset Development, KiwiRail Limited

Sustainable communities champion Tessa Meyer is NZGBC Future Thinker of the Year 2020 and KiwiRail’s Programme Sustainability Lead for the Interislander Resilient Connection Programme (iReX). Tessa has worked with NZGBC on New Zealand’s first Green Star Communities ratings and Australasia’s first Volume rating during her time with Panuku Development Auckland. She holds a Bachelor of Science and Master of Urban Resilience and Renewal. Her research formed part of MBIE’s Resilient Urban Futures Programme and she served as Vice Present of the Student Volunteer Army during her time at the University of Canterbury.