Stable internal comfort
Consistent temperatures year-round with reduced hot and cold swings across rooms and seasons.
Passive House Certified
Certified Passive House design in Perth, balancing building science, design clarity, and homes that perform in the real world.
Certified Passive House Design
A higher-performance brief, resolved with design discipline.
Passive House is not a styling exercise. It is a rigorous performance standard built around comfort, airtightness, insulation, low energy demand, and reliable indoor air quality. Kellett Design Group applies those principles without losing sight of how a home should look, feel, and function in Perth.
Why clients pursue Passive House
Better performance shows up in daily living, not just in modelling software.
Lower energy demand
Envelope-first design reduces the load on heating and cooling systems and improves long-term efficiency.
Healthier indoor air
Airtight construction and considered ventilation help support indoor air quality, comfort, and acoustic control.
Our Approach
Design intent and building science have to agree.
We work through the passive house requirements early, so orientation, glazing strategy, insulation build-up, airtightness, and thermal bridge thinking are coordinated with the architecture rather than patched in late.
That produces clearer decisions, fewer compromises during documentation, and a design that is better prepared for construction reality.
Envelope-first thinking
We prioritise the parts of the building that most directly control comfort and operational performance.
Perth-specific design judgement
Passive House principles are applied in response to local climate, site conditions, and how clients actually live.
Documentation that can be built
Good performance depends on detailing, coordination, and communication, not just broad sustainability claims.
Discuss a certified passive house project.
If you are aiming for a healthier, more comfortable, lower-energy home, we can help shape the brief and map the next step.