Why Do I Need a BASIX or NatHERS Assessment?

• November 24, 2025
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• FAQs

In NSW, BASIX Certificates and NatHERS Assessments are essential for getting residential building approvals and ensuring your home performs well once built. They work together: BASIX sets sustainability targets for energy, water and thermal comfort, while NatHERS provides the modelling evidence for thermal comfort through a 0–10 star rating. BASIX…

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What is a NatHERS Assessment?

• November 17, 2025
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• FAQs

A NatHERS Assessment is a building energy rating for houses and apartments under the Nationwide House Energy Rating Scheme. It predicts the thermal performance of a dwelling based on design features such as orientation, glazing, shading, insulation, construction type and climate zone. The output is a star rating from 0…

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What is a BASIX Certificate?

• November 10, 2025
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• FAQs

A BASIX Certificate (Building Sustainability Index) is an approval document required for most residential building projects in New South Wales (NSW). It confirms that your design meets minimum standards for energy efficiency, water use and thermal comfort. Without a valid BASIX Certificate, councils and certifiers cannot approve your Development Application…

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