First certified Passivhaus homes in Australia complete in Hawthorn

First certified Passivhaus homes in Australia complete in Hawthorn
Joel Robinson April 21, 2025PROJECT SPOTLIGHT

Until now, it has been nearly impossible to obtain a Passivhaus home without building one yourself.

C. Street Projects has collaborated with award-winning Neil Architecture to bring the world’s best standard for energy efficiency to Melbourne’s leafy Hawthorn.

These rare three-bedroom homes are continuously ventilated with fresh, filtered air, significantly reducing allergens and pollutants in the home.

Designed to maintain a comfortable 23 degrees during all seasons of the year while using 70 per cent less energy than a typical Victorian home, the Passivhaus-certified homes are also incredibly quiet, thanks to triple-glazed windows, straw panel insulation, and intelligent airtight membranes. Additionally, they are equipped with EV chargers, PV solar, and battery storage, operating as net zero energy buildings for the ultimate sustainable lifestyle.

Kin Seng Choo and Michael Robertson, the duo behind C. Street Projects, have spent the last five years developing a method and design approach to scaling certified Passivhaus projects suited to the unique challenges of Australian conditions.

“Australians should have access to sustainable homes built to global best practice. Turnkey homes certified to the Passivhaus standard provide that independent verification and surety of quality,” says Choo.

“Passivhaus certification is the exemplary benchmark for high-performance building, recognised globally. While relatively new in Australia, this model is well established in Europe, the United States and Canada. The guaranteed performance from its stringent certification process is a major selling point."

C. Street is committed to improving the quality of buildings with international best practices and innovates approaches that pair architectural design with excellent performance.

“It has been a challenge to deliver Passivhaus certification consistently and reliably because there is a rigorous testing and commissioning process at the end.

We’ve worked tirelessly on our approach to ensure this can be done at scale. Living in a Passivhaus is an awesome experience. It will change your perspective on what’s important in a home – away from surface finishes, to focusing on what’s under the hood and what true comfort really means,” says Robertson.

Choo says great architecture and material finishes must be paired with energy-efficient design and the quality of execution.

"Building your own certified Passivhaus is daunting, but now ECHO provides a brand new, turnkey solution available to the market. Buyers have a choice."

Joel Robinson

Joel Robinson is the Editor in Chief at Urban.com.au, managing Urban's editorial team and creating the largest news cycle for the off the plan property market in the country. Joel has been writing about residential real estate for nearly a decade, following a degree in Business Management with a major in Journalism at Leeds Beckett University in England. He specializes in off the plan apartments, and has a particular interest in the development application process for new projects.

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First certified Passivhaus homes in Australia complete in Hawthorn