Alternative assessment introduced for large boarding houses

Since being introduced in 2004, the Building Sustainability Index (BASIX) requirements have set the ground rules for thermal comfort performance and water and energy usage within residential dwellings.

1 November, 2020
Alternative assessment introduced for large boarding houses

Since being introduced in 2004, the Building Sustainability Index (BASIX) requirements have set the ground rules for thermal comfort performance and water and energy usage within residential dwellings. They are part of the development application process in NSW and aim to promote more sustainable and green living, while maintaining comfort and cost-efficiency.

Recently, NSW Planning announced that large (e.g. student accommodation) boarding houses’ thermal comfort performance would no longer form part of this assessment. Instead, an alternative assessment should be requested via the online BASIX Tool. This means the assessment will not be required until the construction certificate stage, where thermal comfort will be assessed against Section J of the Building Code of Australia (BCA). For boarding houses that accommodate less than 12 people or have a floor area under 300m2, the alternative assessment does not apply.

The change is being implemented as a more suitable alternative to the existing NatHERS accredited software, however will not replace the standard BASIX assessment for water and energy usage.

More information on how you can access the alternative assessment can be found here.

Your source of design inspiration.

We share design tips, tricks, and trends, as well as expert advice and inspiration from across the globe.

22 October, 2025
NSW Housing Pattern Book Design Explained

Walk down any well-planned street and you can sense it. The houses line up just right. Trees cast the right amount of shade. Front doors face each other in a way that makes neighbours wave more often than not. That balance doesn’t happen by accident. In New South Wales, one of the biggest tools behind …

1 September, 2025
What is the Difference Between a DA and a CDC?

Thinking of building or developing in Sydney? You’ve probably come across the terms DA and CDC. It’s easy to get confused, especially if you’re new to property development. Let’s clear it up. There are two main paths to getting approval for your build: a Development Application (DA) or a Complying Development Certificate (CDC). Both bring …

28 July, 2025
How to Avoid Common Mistakes in the Building Design Process

Building a home or commercial space is one of the most exciting things you can do—but it’s also where many people go wrong. You might have a vision in your head, a mood board on your wall, and a budget in place. Still, things can fall apart quickly if key details are missed early on. …


Load more articles