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 17 November 2021, the NSW Government announced an increase in BASIX standards – see here. Additionally, we have released a new beta version of the BASIX Tool for testing, – see here.
View the proposed changes and comment on the increase to the standards by 28 February 2022.
Have your say on the Design and Place SEPP, including BASIX materials index and merit assessment pathway by 28 February 2022.
We are bringing planning processes up to date and making them easier. View more information about the SEPP.
Login or register to use the BASIX assessment tool, create a project, update your project or revise a Certificate.
Learn all about BASIX, how it applies to your development and how it is helping our environment.
Learn more to get you started in creating or revising a BASIX Certificate, or to troubleshoot.
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.
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.
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.
Inspiring case studies for sustainable living.
We have a new streamlined process for completing a BASIX assessment of a large boarding house.
The NSW Government has committed to achieving net zero emissions by 2050.
We implemented a number of updates to the BASIX tool on 24 June 2021
We implemented a number of updates to the BASIX tool on 30 April 2021.
We have made a number of changes to BASIX, as outlined below.