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Development and Assessment

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.

BASIX is one of Australia’s strongest sustainable planning measures. Use the online BASIX assessment tool to assess the energy and water use and thermal comfort of your residential development.

On 29 August 2022, the NSW government announced changes to the BASIX standards, as part of the new Sustainable Buildings State Environmental Planning Policy (SEPP) which will come into effect on 1 October 2023  – see here. 

The beta BASIX sandbox tool is available to test your designs against the higher standards - see here.

BASIX Login or Register

Login or register to use the BASIX assessment tool, create a project, update your project or revise a Certificate.

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About BASIX

Learn all about BASIX, how it applies to your development and how it is helping our environment.

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BASIX How To and FAQs

Learn more to get you started in creating or revising a BASIX Certificate, or to troubleshoot.

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Energy

The energy section of the BASIX assessment examines the energy efficiency of the appliances and equipment, and the use of alternative energy sources in the development.

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Water

The water section of the BASIX assessment examines the water efficiency of the appliances and fixtures, the design of the landscaping and the use of alternative water sources in the development.

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Thermal Comfort

The thermal comfort 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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Large boarding houses

We have a new streamlined process for completing a BASIX assessment of a large boarding house.

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Change to BASIX standards

The NSW Government has committed to achieving net zero emissions by 2050.

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BASIX news and announcements

18 February 2022

Minor updates to the BASIX Tool

We have made a number of changes to BASIX.

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24 June 2021

Upgrades to BASIX – 24 June 2021

We implemented a number of updates to the BASIX tool on 24 June 2021

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30 April 2021

Updates to BASIX

We implemented a number of updates to the BASIX tool on 30 April 2021.

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