Ockham Residential

NZ Green Building Council Homestar Update

Homestar v3 update

As with every building rating system, it’s important to regularly review Homestar to ensure it’s up to date with the latest thinking and technologies, and able to meet industry needs.

Since the inclusion of Homestar in the Proposed Auckland Unitary Plan and Special Housing Areas, there has been increased interest in how Homestar applies to apartment developments. After consultation with Homestar Assessors and other industry members, NZGBC’s technical team developed a pilot version of Homestar v3. The tool update’s two sponsors, Willis Bond & Co and Ockham Residential, have been using this pilot tool over the past three months to inform their latest multi-unit projects, and have provided feedback to further improve Homestar.

The updated Homestar tool launched on November 12, 2015. Homestar now better reflects the specific qualities of higher-density projects, such as apartments and multi-unit residential buildings. Other changes to the updated Homestar tool include:

  • New credits to acknowledge a Density Factor, common-area facilities and natural lighting levels.
  • New pathways for more accurate modelling of energy used for heating and cooling, and whole thermal performance.
  • Streamlining documentation and calculators to make submissions easier.


Homestar v3 is more flexible and modern, and we’re also making the tool more accessible – the technical manual is available to the public, so everyone can learn how to achieve a Homestar rating.

Homestar 2013

The previous version of Homestar (2013) is still in use, and projects may continue to register under this tool until June 30, 2016. If you have any questions, please contact us.

Principal sponsor:

Associate sponsor: