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Part I: Radiofrequency Radiation 

Design and build homes that minimise RF Radiation.

Our only live cohort for 2025 kicks off this June.
Be among a select group of forward-thinking designers and builders leading the next wave of healthy home innovation.

See course outline
 

''As a residential home builder committed to health, the Radiofrequency Radiation course has been invaluable. It's equipped me with science-based, unbiased knowledge that I can confidently share in fact-based conversation, whether with clients or friends.

The course has deepened my understanding of RF radiation sources, how they interact with building materials and the environment, and how to design effective strategies to prevent RF from entering buildings while mitigating internal sources.''

Shonny Landmark
Reverdie

 

 

Why this course is unlike anything else available

 

This programs bridges advanced EMF science with healthy home construction for designed specifically for forward-thinking builders and designers.

Zara brings to the program a rare combination of deep materials research, and advanced EMRS training through the Building Biology Institute in the US, and extensive industry experience working with award-winning home builders and designers, translating insights into practical frameworks for construction projects. 

This course distils step-by-step strategies you can implement right away — empowering you to collapse time, lead conversations around smart home health, and make a tangible impact in your clients’ lives.

Who the Low EMF Home Design & Construction course is for - and why 

  1. Home designers and builders.
    Whether you’re just starting to explore healthier building practices or already have experience, this course is the first in a six part series that provides actionable insights and a clear framework to address one of the biggest blind spots in healthy home movement: electromagnetic fields (EMFs).

  2. Healthy Building Materials Mastermind alumni.
    If you've already taken steps to improve condensation management and understand the health impacts of building materials, this course is your next opportunity to elevate your building practices and expand your expertise.

By addressing the unseen and often overlooked impact of EMFs, starting with the most prolific of the six types of EMF, radiofrequency radiation, you'll position yourself to deliver even healthier home builds for your clients—filling a critical gap in the healthier building movement.

 

Zara D'Cotta
Founder, The Healthy Home
Building Biology New Build Consultant (BBNC)
Electromagnetic Radiation Specialist (in-training)

After undergoing 30 doses of radiation during cancer treatment, Zara developed electromagnetic hypersensitivity (EHS), drastically changing how she experienced her home environment.

This personal turning point led to nearly a decade of research, and a deep commitment to helping others create homes that truly support health.

Zara was the first Building Biology New Build Consultant in Australia (and is one of less than 20 globally) in 2022. In 2023 and 2024, Zara completed two advanced EMF training intensives in the U.S. with world-leading experts — including electricians and electrical engineers — gaining cutting-edge, science-backed knowledge with real-world application.

She works with Australia’s most forward-thinking, award-winning designers and builders to help reduce EMF exposure and other environmental risks in homes.

WHAT TO EXPECT

Radiofrequency Radiation module (part 1 of 6)
 

This is the first in a comprehensive 6-part Low EMF Home Design & Construction series, and focuses on Radiofrequency (RF) Radiation — the most widespread form of EMF in our increasingly wireless world.

  • Understanding RF radiation: grasp the core science behind radiofrequency radiation — what it is, where it comes from, and what the research says about health effects.

  • Initial assessment tools: Explore the pros and cons of entry-level and professional-grade tools for measuring RF exposure in built environments.

  • Practical design & construction strategies: Follow a clear, step-by-step framework to reduce RF exposure through practical design decisions and construction methods you can integrate into your projects right away.

  • Client education resource: You’ll receive a professionally designed 8-page brochure — Creating a Healthier Home in a Wireless World — to use with clients. It includes practical tips they can implement and positions you as a forward-thinking professional who prioritises their wellbeing.

  •  Module summaries: Each section concludes with a short quiz and summary for easy revision and reference.

 

 

Full course series

The Radiofrequency Radiation module is the first in a six-part series designed to help you master Low EMF Home Design & Construction. Each module focuses on a different type of electromagnetic field (EMF), with its own unique characteristics, assessment tools, and mitigation strategies.

This course is built to give you a clear, practical foundation — one step at a time.

Overview of the full course series:

  • RF Radiation (available now)

  • AC electric fields (launching in 2025)

  • AC magnetic fields (launching in 2025)

  • DC electric fields (launching by 2026)

  • DC magnetic fields (in development)

  • Dirty electricity (launching by 2026)

    Each part consists of four comprehensive modules with the remaining parts to be launched in 2025-26. Early access to future modules will be offered to RF students before public release.

    By the end of the series, you’ll have a comprehensive understanding of how to design and build low-EMF homes, protect health, and differentiate your projects.

Move beyond traditional standards -
design for long term health

Traditional electrical standards focus on preventing immediate dangers like shock, fire, and injury, but they overlook the long-term health effects of electromagnetic fields.

As home designers and builders, you have the opportunity to go beyond traditional standards and lead the way in creating healthier,safer homes


Imagine a future where every home is designed as a sanctuary for the body to rest and repair.

Reducing radiofrequency radiation exposure is an opportunity for industry leaders to create homes that truly prioritise health.

By the end of this course, you'll understand how to design and build low EMF homes, reduce health risks for occupants, and differentiate your projects in the market.
 

RF Radiation course

$1,999 AUD*

*Price will increase to $1,999 AUD on 12 June

* Excludes GST (non-Australian participants do not pay GST)

  • 6 months access to part 1 (of 6): Radiofrequency Radiation

  • 3 x live Q & A calls

  • Practical exercises to apply your learnings.

  • A measurable, step-by-step framework for projects.

  • Client educational resource 

  • Downloadable module summaries

  • End of module assessments

  • Early access to future EMF modules  before public release.

  • BONUS complimentary 45 minute consult with Zara when you join buy 11 June 2025 (alumni exclusive)

 

Need a payment plan?
Click here for 3 x monthly instalments of $725 + GST (save $200 with upfront payment),. 

Click here to read the terms and conditions.

Join now

 

🎯 This is a focused cohort —
designed for a select group of designers and builders committed to pushing the industry forward.

You’ll gain access to live support, a real-world framework, and a chance to be at the forefront of the healthy home movement.

Spaces are limited.

TIMING & CALL STRUCTURE

When and how it runs

This is the only live cohort of the Radiofrequency Radiation module we’ll be running in 2025.

Kickoff call: Thursday 26 June (9am AEST) 

Live implementation calls:
 📅  Held monthly on a Thursday (9am AEST/4pm PDT on Wednesday US time) in the last week's of June, July, August and September. 

Replays will be available, but live attendance is encouraged for Q&A and tailored support, and required to meet the full Low EMF Home Design & Construction Course certificate of completion requirements. 


Think of EMFs as invisible pollutants

Just like air and water pollution. With the right knowledge and tools, we can create safer environments.

Start with RF Radiation — one of the most pervasive EMFs affecting modern homes —and learn actionable steps to address it: from measurement, to pre-design, design and construction. 

Learn about the Radiofrequency Radiation course

Low EMF Design & Construction 
Part 1: Radiofrequency radiation course outline

 

Module 1: Intro to RF radiation 

  • What is radiofrequency (RF) radiation?
  • Common sources of RF radiation in the home
  • Health effects of RF radiation (wireless technology)
  • Ionising vs. non ionising radiation
  • The regulatory landscape: why regulations are inadequate
  • Limitations in safety testing and international RF standards 
  • Inconsistencies in guidelines + what some countries are doing proactively
  • Conflicts of interest
  • Home audit exercise
  • Downloadable summary of concepts
  • End-of-module assessment


Module 2: Measuring & testing

  • Building Biology guidelines for RF radiation exposure
  • How to measure RF radiation on-site and in homes
    • RF testing tools: pros, cons and limitations of different devices when testing across frequency bands.
  • Locating nearby phone towers
  • 5G: why it’s fundamentally different from 3G/4G, expert concerns, and the key design/material implications for builders and designers
  • Expert insights from world leading EMF expert: Rob Metzinger, Electric Field Services Engineer, Electromagnetic Radiation Site Inspector & Building Biology Environmental consultant.
  • Downloadable summary of concepts 
  • End-of-module assessment


Module 3: Design strategies to mitigate RF

  • Proven design strategies to reduce RF  exposure (downloadable checklist outlining minimum, better + best practices)
  • Assessment questionnaire (you can apply to a project and be given a measurable score for how many criteria you've met)  
  • External sources to look for when assessing a site
  • Shielding 101: comprehensive exploration of materials and an exposĂ© on gimmicks that don’t work.
    • Shielding RF radiation with building materials - strategies that can be incorporated into wall material selection, reducing RF exposure from windows, etc.
    • Shielding demonstration 
    • Unintended consequences of shielding
    • Smart metre: best practice for measuring exposure and shielding considerations. 
  • Downloadable summary of key concepts from module 3 how to incorporate shielding into building design - including material selection and reducing RF penetration via windows and wall systems.
  • Real-world shielding demonstration
  • Important unintended consequences to be aware of
  • Downloadable summary of concepts
  • End-of-module assessment  

Module 4

How to reduce your daily exposure to Radiofrequency Radiation, including:

  • How to reduce your daily exposure from your phone
  • How to reduce your daily RF exposure from your WiFi (if hardwired not possible)
  • Harmonising devices - expert commentary
  • Downloadable checklist for reducing your daily exposure in everyday life. 
  • Microwave radiation 
  • Client education resource: beautifully designed 8-page brochure to help educate your clients on RF risks and reduction strategies.
  • Live Q & A with EMF & electrical engineer, expert Rob Metzinger

Learning outcomes

 

 

The course is designed to empower designers and builders with the knowledge and practical steps to implement low EMF design and construction practices.

It provides comprehensive insights and strategies but does not certify participants as EMF testing professionals. It is ideal for those who do not want to become EMF testing technicians but need actionable steps they can implement using blueprints created specifically for this purpose.


Frequently Asked Questions 



Will this course be offered in a live format again?
This is the only live round of the Radiofrequency Radiation module we plan to run in 2025.

After this, the course may be offered as on-demand training, but we haven't yet confirmed if or when that will happen. If it does return in an on-demand format, it may not include a certificate of completion or the same level of guided support.

We’re focusing on delivering the most value possible through this live round — and then shifting our attention to the remaining EMF modules in the full course series.



Can a team member join me in the program?

Yes — you’re welcome to nominate one additional person to join you. From experience, co-founders and business partners tend to be equally invested in the outcomes, so we’re happy to include them at no extra cost — just reach out after enrolling so we can set this up for you.

For team members or employees, we’ve found engagement can vary. To ensure everyone participating is actively involved in the learning and conversations, an additional fee of $245 AUD + GST applies for team members.

This helps us protect the integrity of the learning space — and gives you the opportunity to have a meaningful conversation internally about who will benefit most from joining



When will I get access to the course?
Upon enrolling, you'll get immediate access to the course. 



How long do I have access to the course?
You’ll receive 6 months of access from your enrolment date, giving you ample time to complete the module, attend the Q&A calls, and start implementing your learnings. If you need more time for implementation, there will be an option to request an extension (fees may apply). 



Why don't you offer lifetime access?
Given the depth and pace of change in this field — particularly around EMF science and mitigation — we’re focused on keeping our content accurate, current, and actionable.


Have a question we haven't answered here?
We'd love to help, email us at [email protected]. Â