Homestar Governance

As part of our commitment to improving the health, efficiency and sustainability of homes across Aotearoa, we work with experts across industry and government to regularly review Homestar while maintaining its reputation as one of the leading independent certification tools for new homes.

The governance framework and expert reference panel has been established to:

  • Provide specialist technical advice related to Homestar as a holistic certification tool
  • Bring independent thinking and drive continuous improvement to adapt to change in the regulatory, environmental and social conditions across Aotearoa New Zealand
  • Evaluate the views of stakeholders as submitted through the stakeholder consultation process

Central to this work is our focus on carbon and decarbonising the built environment. Our advisors will consider the impact of carbon at each stage of the building lifecycle including operational carbon, embodied carbon, energy reduction, water efficiency, surface water run-off, waste to landfill, waste reduction, and the circular economy in supporting resilient communities.

How their reporting lines work with NZGBC and our Board is best outlined as: 

The role of the Homestar Advisory Committee

Chaired by Simon Wilson of RDT Pacific, members of the Homestar Advisory Committee are sustainability leaders with experience in rating systems and the role of independent certification in driving change. They hold senior positions in their organisations and understand the economic, social and environmental drivers that affect the adoption of sustainable building practices.

The Homestar Advisory Committee works across the Expert Reference Panel (ERP) to consolidate recommendations for the NZGBC Leadership Team and Board on all matters relating to the development of Homestar. In doing so, they are committed to ensuring that the Homestar certification system remains rigorous, market relevant, and valued by industry.

The Homestar Advisory committee members are:

Jeff Samasoni

Kāinga Ora

Oliver Buckingham

Solution Street

Rachel Soakell

GJ Gardener Homes NZ

Alex Reiche

BXG Consulting

Simon Wilson

RDT Pacific

Hayley Burgess


Matt Wilson


Gareth Gretton


The role of Expert Reference Panels

The Expert Reference Panel assists with more detailed technical review and feedback on Homestar. Panelists are invited by NZGBC but may also be nominated by themselves or via other members.

Nikki Bucket

Kāinga Ora

Rob D’Avergne

Foley Group Architecture Ltd

Sam Dallimore

BXG Consulting

Roman Jacques


Ella Osborne


Karl Wakelin


Brian Berg

Kāinga Ora

Lee Ann Durbin

Enveloped Solutions Ltd

Denise Martin

Oculus Ltd | Architectural Engineering

For more information on the governance structure, or to discuss your expression of interest, please contact Matthew Cutler-Welsh at