Site Information

 Loading... Please wait...



Technical Notes

NatHERS Principles for Ratings in Regulation Mode Version 1.2 – 2014

Zoning Guide for Technical Note 1.2 

Technical Note 1.2 Assessor Questions and Answers 

Universal Certificate

Information  for Owners and Builders


Energy Rating

New Science

Chenath Engine for Residential House Energy Rating

Training Resources 

Certificate IV in NatHERS Assessment (CPP41212) 

CPP41212 Training Providers

CPP41212 Course Details


State Resources

 NSW – BASIX Thermal Comfort Protocol

 Victoria- Residential Sustainability Measures, Practice Note 2014-55 - July 2014

 Queensland - Energy assessments for residential dwellings and use of software


Additional Resources

National Construction Code (NCC) Online 

Australian Fenestration Rating Council (AFRC) 

Your Home - Australia's guide to environmentally sustainable homes


To become a NatHERS accredited Thermal Performance Assessor you must obtain accreditation with an Assessor Accrediting Organisation (AAO).

The two AAOs under the NatHERS protocol, the Building Designers Association Victoria (BDAV) and Association of Building Sustainability Assessors (ABSA) are able to accredit assessors who have fulfilled the requirements of accreditation.

New entrants to the thermal performance assessor market must complete the Certificate IV in NatHERS Assessment to be eligible for accreditation.

For more information on becoming accredited as a Thermal Performance Assessor please visit:

Assessor accreditation and qualifications

Building Designers Association Victoria (BDAV) - phone 03 9416 0227 or email

Australian Building Sustainability Association (ABSA) - phone 1300 889 438 or email