BASIX
If you're building a new home, undertaking renovations of $50,000 or more, or installing a pool or spa of more than 40,000 litres, you will need a BASIX certificate.
The BASIX tool is now part of the NSW Planning Portal. Users will need to log in or register for a Planning Portal account to access the tool.
Due to the large number of enquiries we’re receiving, we might take a little longer to respond than usual. Please review our BASIX support materials to see if your question has already been answered, or for an update on an identified technical issue.
BASIX support materials
The BASIX standards cover water, energy use and thermal performance. They apply to all new residential developments, as well as renovations more than $50,000.
You can access the BASIX tool with an existing applicant or developer NSW Planning Portal account. If you don’t have one of these accounts, you can register for one.
Access the BASIX tool via the Planning Portal
Increases to the BASIX standards came into effect on 1 October 2023. If you generated a BASIX certificate before 1 October, you do not need a new certificate. You must submit this with your development application, or lodge it with your complying development certificate application, within the 3-month validity period.
Increase to BASIX standards
The NSW Government has committed to achieving net zero emissions by 2050.
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How BASIX standards apply
Information about creating and revising certificates and limited transitional arrangements in place.
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BASIX support materials
Learn more to get you started in creating or revising a BASIX Certificate, or to troubleshoot.
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Thermal performance
The thermal performance section of the BASIX assessment examines the design and materials used in the building to reduce the need for artificial cooling and heating to keep the home comfortable.
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Examples of excellence in residential building
Inspiring case studies for sustainable living.
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About BASIX
Learn all about BASIX, how it applies to your development and how it is helping our environment.
read moreBASIX news and announcements
The enhanced BASIX tool is here
The enhanced BASIX tool is now live! All users can now access the tool via the NSW Planning Portal.
read moreBASIX tool enhancements mid-2023
The BASIX tool is being enhanced and is moving to the NSW Planning Portal in mid-2023.
Read moreMinor updates to the BASIX Tool
We have made a number of changes to BASIX.