Passive House Builders Melbourne.

Certified, carbon neutral homes – built for performance through every Melbourne season.

Build With Integrity. Live Better.

At The Zimmermann Oz (TZO), we’ve been building passive homes Melbourne families trust for over 10 years. As a leading Passive House builder Melbourne wide, we deliver thermal stability, cleaner indoor air, and long-term efficiency through every winter cold snap and summer heatwave – without compromise.

Whether you’re considering a new build or a high-performance renovation, our team ensures your home is ready for a changing climate. Contact us on 0491 206 494 or info@tzo.com.au to get started.

  • Mountainous landscape with lake

    We work across custom new builds, renovations, and our exclusive TZO Homes – a curated collection of pre-designed homes that balance cost-efficiency with certified performance.

  • Snowy mountains in back with Passive House on mountain

    Every project is delivered by a trusted Passive House builder Melbourne, ensuring airtight construction, superior thermal performance, and sustainable materials that reduce energy use and provide long-term value for homeowners.

  • Passive House exterior in mountains

    Our passive homes offer healthier indoor environments, with controlled ventilation, consistent temperatures, and minimal carbon footprint, giving families cleaner air, energy savings, and peace of mind in every season.

Why Choose Passive House Melbourne Wide?

Passive House is a global building standard for performance, comfort, and health. This approach goes far beyond minimum compliance, focusing on airtightness, insulation, heat recovery, and solar orientation to reduce energy use by up to 90%.

At TZO, every project reflects these principles. For clients wanting third-party verification and financial benefits, we also deliver full Passive House certification. By partnering with a specialist Passive House builder Melbourne wide, like TZO, you ensure a healthier, more sustainable future for your household.

Whether you’re looking for passive homes Melbourne residents are increasingly choosing for comfort, or a fully certified Passive House, The Zimmermann Oz provides a trusted, proven pathway to exceptional performance.

What We Offer in Melbourne:

  • Custom Passive House-aligned new builds

  • TZO Homes – our exclusive pre-designed, Passive House-aligned home range

  • Certified Passive House delivery

  • Renovations with thermal upgrades

  • All builds are carbon neutral, with emissions fully offset through GreenFleet

Aintree. Passive Certified Project.

From the outset, this home was designed for minimal impact and maximum performance. Our clients were informed, committed, and clear on their values – and we worked closely with them to align every detail.

We delivered full Passive House certification using a highly considered material palette: ECO Pact low-carbon concrete, Surefoot micro-pile footings, timber framing, Earthwool insulation, and a complete airtight membrane. A Zehnder HRV system provides mechanical ventilation, while recycled UPVC triple-glazed windows support thermal stability and reduce embodied carbon.

Build Your Passive House Melbourne Wide with TZO.

With over a decade of expertise, The Zimmermann Oz is the trusted choice when searching for a passive house builder Melbourne families trust for dependable, sustainable results. Our experience spans new builds, renovations, and certified projects that put performance and sustainability first.

To begin your journey, contact us on 0491 206 494 or email info@tzo.com.au today.