Archive : December 2025

December 2025

I Didn’t Build in Accordance with the BASIX – Does It Matter?

Yes, it matters. The BASIX Certificate forms part of your project’s approval documents. The BASIX Certificate is part of NSW performance requirements under the NSW Government’s building sustainability program. Certifiers and councils can cross‑check that the as‑built home matches the BASIX commitments. If on‑site choices deviate (for example, different glazing…

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Do I Need a BASIX for a Swimming Pool?

Yes – if your swimming pool or outdoor spa has a capacity greater than 40,000 litres, it typically requires a BASIX Certificate in NSW. The purpose is to ensure appropriate water‑saving measures and energy‑efficient heating systems (where applicable) are in place. BASIX certificates are lodged as part of the development…

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I’m Doing a Multi‑Unit Development – Can I Use a Single Dwelling BASIX?

No. Multi‑unit residential projects (Class 2) must demonstrate that each dwelling meets BASIX requirements. A single BASIX Certificate for a detached dwelling cannot be used to cover multiple apartments or townhouses. BASIX is a mandatory requirement for residential developments in NSW. How BASIX works for multi‑unit projects Depending on your…

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Can I Do the Assessment Myself?

In short: no. BASIX Certificates and NatHERS energy ratings must be prepared by qualified practitioners using approved tools, and councils or certifiers require properly issued documentation for approvals. Why DIY doesn’t work for BASIX BASIX certification is issued via the NSW Planning portal using recognised assessment inputs. The certificate includes…

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When Do I Need a BASIX or NatHERS Assessment?

You should organise BASIX and NatHERS before lodging your Development Application (DA) or Complying Development Certificate (CDC). Councils and certifiers need these documents to verify that your project meets NSW planning requirements. Engaging Evergreen Energy Consultants early gives you time to adjust design elements (if necessary) without disrupting your timeline…

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