
Passive Haus and
High-Performance Building
Sustainable homes in Sunbury, North-West Melbourne, the Macedon Ranges and surrounds.
Across the Macedon Ranges, Sunbury and Melbourne’s north-west, more homeowners are choosing to build high performance homes that prioritise comfort, efficiency and long-term sustainability. Rather than simply focusing on size or finishes, these homes are designed to perform better — maintaining consistent indoor temperatures, reducing energy consumption and creating healthier living environments for the people who live in them.
A high performance home is carefully considered from the ground up. Orientation, insulation, airtightness, glazing and ventilation are all thoughtfully designed so the home works with the climate rather than against it. The result is a home that stays cooler in summer, warmer in winter and significantly reduces reliance on mechanical heating and cooling systems.
Many homeowners are also drawn to the long-term benefits of sustainable building. Rising energy costs, growing environmental awareness and a desire for improved indoor comfort have led many clients to explore building approaches that incorporate Passive House principles, high performance building envelopes, energy-efficient materials and intelligent design strategies.
At One Bau Group, sustainable construction and high-performance homes are an area of genuine interest for director Adam Gazic. Adam has developed a strong passion for building homes that go beyond standard construction methods — focusing not just on how a home looks, but on how it performs over decades of living.
Adam Gazic is a Certified Passive House Tradesperson, accredited through the Passive House Institute. To receive this accreditation, Adam has undertaken specialised training in high performance construction techniques. This knowledge allows our team to incorporate Passive House principles, airtight construction methods and advanced building systems into projects where clients are seeking higher levels of efficiency, comfort and sustainability.
While not every project needs to be a fully certified Passive House, many homeowners are choosing to integrate elements of high performance design into their homes — from enhanced insulation and improved thermal performance to thoughtful solar orientation, high quality glazing systems and carefully considered ventilation.

What is Passive Haus?
Passive Haus (or Passive House) is an internationally recognised building standard focused on creating homes that are exceptionally energy efficient, comfortable and healthy to live in. Rather than relying heavily on mechanical heating and cooling systems, a Passive Haus home is designed so the building itself does the work - retaining warmth in winter and staying cool in summer through airtight construction, high-performance insulation, triple-glazed windows and a controlled ventilation system with heat recovery.
​
The result is a home that uses up to 90% less energy for heating and cooling than a conventionally built home, with consistent indoor temperatures, significantly improved air quality, and lower running costs over the life of the building.


Our Approach
At One Bau Group, we are in the early stages of building our Passive Haus portfolio and are actively taking on projects where clients want to explore high-performance construction. We bring certified knowledge to every conversation - whether you are looking for a fully Passive Haus certified build or simply want to incorporate high-performance principles into your custom home.
​
We work with each client to understand what level of performance is right for their budget, lifestyle and site - and design the build accordingly.
Is Passive Haus Right for You?
Passive Haus (or Passive House) is an internationally recognised building standard focused on creating homes that are exceptionally energy efficient, comfortable and healthy to live in. Rather than relying heavily on mechanical heating and cooling systems, a Passive Haus home is designed so the building itself does the work - retaining warmth in winter and staying cool in summer through airtight construction, high-performance insulation, triple-glazed windows and a controlled ventilation system with heat recovery.
​
The result is a home that uses up to 90% less energy for heating and cooling than a conventionally built home, with consistent indoor temperatures, significantly improved air quality, and lower running costs over the life of the building.


