High-Performance
Homes Built for Life
The Zimmermann Oz are Passive House builders creating high-performance homes for how you live now, and for the long term. As trusted passive home builders in Australia, we bring world-class performance and sustainable outcomes to every home we construct.
Our homes aren’t just designed to look good; they’re designed to work. Every line, junction, and material is considered. Every decision is made to support comfort, air quality, and long-term performance.
We follow Passive House principles using airtightness, insulation, ventilation, and material choices to create homes that stay comfortable year-round, with less energy and cleaner air. With an increasing demand for energy efficient house builders, our approach meets the needs of future-focused homeowners.
Whether you’re building in Melbourne or Brisbane, our approach is tailored to your climate, your site, and your lifestyle. With over 16 years of experience and certified Passive House expertise, we build homes that perform quietly, consistently, and exactly as intended.
If you care about how your home feels, functions and lasts – The Zimmermann Oz build for that. Start your journey with trusted Passive House builders today – contact us on 0491 206 494 or info@tzo.com.au to get started.
Our Services
New Home Builds
New Home Builds
Click HereTZO Homes
TZO Homes
Click HereRenovations
Renovations
Click HereWhere We Build
With offices in both Melbourne and Brisbane, we build homes that respond to the climate and conditions of your region.
In Victoria, our Passive House builds are designed to retain warmth in winter while staying cool through dry summer heat. In Queensland, our approach prioritises solar management, air quality, and passive cooling – using shading, ventilation, and material choices suited to subtropical conditions.
We design homes that make sense for where you live. Build with a sustainable builder who understands your environment.
Why Passive House?
A home should feel good to live in, every day, in every season.
Passive House is a performance standard that makes that possible, and it’s increasingly sought after by those seeking sustainable building solutions. It’s a certified building method, backed by building science and proven around the world. By setting measurable performance targets, it reduces energy demand while enhancing the way people live, yielding tangible results in comfort, air quality, and efficiency.
Passive House buildings are carefully designed to:
Maintain stable indoor temperatures all year
Deliver constant filtered air with low noise and no draughts
Minimise energy use for heating and cooling — up to 90% less than standard builds
The Principles Behind the Design
Airtight construction to prevent heat loss and air leakage
• High-performance insulation for year-round thermal control
• Mechanical ventilation with heat recovery (HRV) for fresh, clean air
• Thermal bridge-free detailing to prevent cold spots and condensation
• Smart window placement and solar control tuned to your site and climate
Whether certified or built to Passive House standards, the outcome is the same: a home that feels calm, costs less to run, and performs well long into the future. Work with one of Australia’s leading energy efficient home builders to experience the benefits of high-performance design.
Built for the Long Term
Every The Zimmermann Oz home reflects our belief in clarity, performance, and lasting quality. As leading passive home builders, we don’t cut corners – we craft every element with care.
We build with care. From the first slab to the last internal finish, our process is deliberate, measured, and driven by Passive House discipline. Good homes don’t just happen. They’re built with intention, precision, and trust.
Every home we build is backed by a 20-year structural warranty – a testament to our precision, process, and commitment to quality. Choose a sustainable builder who builds for future generations.