EPISODE · Apr 21, 2026 · 43 MIN
The Daily Dose #275 | What Builders Were Never Taught About Healthy Homes with Zara D'Cotta
from The Good Builder Podcast · host The Good Builder
Most builders know materials, margins and project management. Very few know what the materials going into their homes are doing to the people living inside them.In this episode, Aaron sits down with Zara D'Cotta, building biologist, EMF specialist, and founder of The Healthy Home. Zara spent years navigating her own cancer diagnosis, environmental illness, and the search for a safe place to live. That experience became the foundation for her work helping builders, architects, and designers across Australia and New Zealand understand the relationship between the built environment and human health.This conversation covers ground most of the industry hasn't touched yet.Topics covered in this episode:Zara's personal journey through cancer, melanoma, and environmental illness — and what it revealed about the homes we buildWhat building biology actually is and why it was founded in post-war GermanyThe four areas that matter most in a healthy home: materials, moisture, air quality, and electromagnetic radiationWhy low VOC doesn't automatically mean safe — and what builders and designers should be asking insteadHow moisture gets trapped in walls during construction and why mold appears in homes less than two years oldWhat electromagnetic fields are, why the electrical code doesn't account for them, and how they can affect sleep, health, and wellbeingThe difference between a genuinely healthy home and one with a sauna and a dog bathHow builders can position themselves in the healthy homes space with integrity and transparencyWhat makes a good builder — Zara's answer will stay with youThis is bigger than building. But it starts with builders.Zara's work and upcoming workshops: https://www.thehealthyhome.com.au/This episode is proudly supported by MyConstruct, the all-in-one platform built for residential builders by builders. Try it free at myconstruct.com.And by Pay.com.au — use code GOOD20 for 20,000 bonus points. Head to https://pay.com.au/tgb for more.
What this episode covers
Most builders know materials, margins and project management. Very few know what the materials going into their homes are doing to the people living inside them.In this episode, Aaron sits down with Zara D'Cotta, building biologist, EMF specialist, and founder of The Healthy Home. Zara spent years navigating her own cancer diagnosis, environmental illness, and the search for a safe place to live. That experience became the foundation for her work helping builders, architects, and designers across Australia and New Zealand understand the relationship between the built environment and human health.This conversation covers ground most of the industry hasn't touched yet.Topics covered in this episode:Zara's personal journey through cancer, melanoma, and environmental illness — and what it revealed about the homes we buildWhat building biology actually is and why it was founded in post-war GermanyThe four areas that matter most in a healthy home: materials, moisture, air quality, and electromagnetic radiationWhy low VOC doesn't automatically mean safe — and what builders and designers should be asking insteadHow moisture gets trapped in walls during construction and why mold appears in homes less than two years oldWhat electromagnetic fields are, why the electrical code doesn't account for them, and how they can affect sleep, health, and wellbeingThe difference between a genuinely healthy home and one with a sauna and a dog bathHow builders can position themselves in the healthy homes space with integrity and transparencyWhat makes a good builder — Zara's answer will stay with youThis is bigger than building. But it starts with builders.Zara's work and upcoming workshops: https://www.thehealthyhome.com.au/This episode is proudly supported by MyConstruct, the all-in-one platform built for residential builders by builders. Try it free at myconstruct.com.And by Pay.com.au — use code GOOD20 for 20,000 bonus points. Head to https://pay.com.au/tgb for more.
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The Daily Dose #275 | What Builders Were Never Taught About Healthy Homes with Zara D'Cotta
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