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Your home’s health: With Zara D’Cotta, The Healthy Home [NCC SERIES]

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Get It Right with Undercover Architect

If we haven’t met before, I’m Amelia Lee, the architect behind Undercover Architect: an online business to help and teach homeowners like you how to g 
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Hello! This is episode 287. In it, I’m talking with Building Biologist, Zara D’Cotta, from The Healthy Home. She’s here to talk about healthy buildings and share her thoughts on how recent National Construction Code changes might affect how healthy our buildings are. 

This episode is part of a special series on the National Construction Code, and NCC 2022.

[For all resources mentioned in this podcast and a free, downloadable PDF transcript, head to]

Australian homes have been described as “glorified tents” with construction techniques changing very little over decades. Our climate is considered ‘mild’ when compared to parts of the world that experience extreme heat or cold. 

Consequently, many homes built in Australia are built without the climate in mind. And, as we’ve had rising energy efficiency standards demanding increased air tightness and insulation, it actually poses a risky issue in the health of our buildings, and the health of us living in them.

We haven’t heard much about it in Australia, but increased air tightness, and a more-is-better approach to insulation, when used without a whole-of-home approach, has resulted in a rising number of mould problems and structural moisture damage to homes in the UK, US, Europe and our nearest neighbour New Zealand. 

Coined ‘leaky building syndrome’, a lot has been done to improve building regulations in those locations. 

The question is now: will Australia learn fast enough, and be able to avoid the issues experienced elsewhere?

In my conversation with Zara, which is across this and the next episode, we talk about your home’s health, and what to know about its construction and design to ensure you don’t create a hazardous environment for yourself.

And, Zara will also share her insights into the National Construction Code updates, and what to consider for great outcomes in your project.

Whether you’re renovating or building new, this information will be super helpful for you.

Remember, if you’d like to grab a full transcript of this episode, plus information on the resources we discuss, you can do that by heading to

Now, let’s dive in!


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Access my free online workshop “Your Project Plan” now >>>

This free workshop will really help you understand the best steps to take wherever you’re at in your project, and how you can avoid some serious and expensive mistakes. 

Plus, I’ll share with you what to focus on and when, so you know you’re getting everything in order for a successful project and beautiful home. And you’ll get access to some great bonuses as well.



For links, images and resources mentioned in this podcast, head to >>>

Access my free “Your Project Plan” online workshop and awesome bonuses now >>>

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Just a reminder: All content on this podcast is provided by Undercover Architect for reference purposes and as general guidance. It does not take into account specific circumstances and should not be relied on in that way. You should seek independent verification or advice before relying on this content in any circumstances, including but not limited to circumstances where loss or damage may result. The views and opinions of any guests on the podcast are solely their own. They may not reflect the views of Undercover Architect. Undercover Architect endeavours to publish content that is accurate at the time it is published, but does not accept responsibility for content that may or has become inaccurate over time.

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Get It Right with Undercover Architect

If we haven’t met before, I’m Amelia Lee, the architect behind Undercover Architect: an online busin 
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