Zara D'Cotta

Zara D’Cotta is a Building Biology New Build Consultant (BBNC) and Electromagnetic Radiation Specialist (EMRS), specialising in healthy building materials, moisture-aware design and electromagnetic radiation considerations in residential construction.

She works with builders, designers and building product manufacturers across Australia and internationally, helping bridge the gap between building science, environmental health and construction practice.

Her work focuses on translating complex health and material considerations into practical, buildable strategies that reduce liability risk and improve long-term performance in new homes.

She holds dual certification through the Building Biology Institute (USA) and is part of a small group of practitioners globally to hold both BBNC and EMRS certifications, integrating EMF awareness with moisture control, ventilation and material health into mainstream building practice.

Zara is the founder of The Healthy Home, providing education and advisory support to the building industry to deliver healthier homes, and is a keynote speaker working with industry organisations and professionals across the sector.

April 27, 2026

#35 | Decoding EMFs and Building Biology with Zara D’Cotta

Is your home actually making you sick, or is there more to the story? In this episode, I’m joined by Zara D’Cotta, founder of The Healthy Home, to explore the intersection of traditional construction and human biology. Zara shares the personal health journey that led her to building biology and presents her case for why "sustainable" design doesn’t always equal a healthy living environment. We look at everything from the hidden trade-offs of recycled insulation to EMFs and lots more. The world of EMFs can feel overwhelming and is often met with plenty of scepticism. In this conversation, Zara and I discuss the gap between current building codes and research, so whether you’re a firm believer or still weighing the evidence, this episode is a deep dive into the science, the controversy, and the evolving global standards of EMFs and building biology.

Guest: Zara D'Cotta

Listen to the Episode