What is Passivhaus?
Passive House (or Passivhaus) is a world-leading standard for energy-efficient building design. Originating in Germany, its principles have been adapted globally and are increasingly relevant here in Australia, where thoughtfully designed, climate-responsive homes are growing in demand.
Through careful design, including high levels of insulation, airtight construction and quality windows, Passive House homes maintain comfortable indoor temperatures year-round while using very little energy.
At Fluit Studio, we believe a home should work with you, not against the climate. We apply Passivhaus principles as part of our architectural process to create homes that go beyond good design, delivering year-round comfort, very low energy use and long-term performance.
The result is a home that stays warm in winter, cool in summer and comfortable to live in every day.
Why Passivhaus?
At the heart of Passivhaus is a commitment to exceptional indoor comfort, healthier air quality, and dramatically reduced energy use.
For many of our clients, it’s about more than energy savings. It’s about future-proofing their home, supporting wellbeing, and creating a lasting legacy of quality.
Once thought to suit only cold European climates, Passivhaus is now proving its value across Australia’s diverse regions. as our buildings evolve, it offers a science-based path to better performing homes, helping to address rising energy costs, poor indoor air quality and the need for long-term resilience.
Consistent internal temperature
Passivhaus homes are airtight, highly insulated, and carefully ventilated, creating living and working spaces with consistent internal temperature and a supply of filtered fresh air, year-round.
Space That priotise comfort and health
Passivhaus homes are designed to eliminate draughts and mould creating healther indoor environments and greater comfort in every season.
Good for the climate and enviornment.
Passivhaus homes dramatically reduce energy consumption and carbon emissions, supporting a more sustainable built environment.
The Five Key Elements of Passivhaus
01 Continuous High-Performance Insulation
Passivhaus buildings are wrapped in a consistent layer of insulation, thicker than standard building regulations. External walls can be up to 500mm thick, protecting the interior from heat loss in winter and overheating in summer. Materials such as dense wood fibre or solid blocks are are selected for their durability, thermal efficiency, and climate suitability.
02 Airtight Building Envelope
To reduce unnecessary heat loss or gain, we design and detail a fully sealed building envelope. This requires careful construction and verification, helping your home retain warmth and operate efficiently, without the need for inetrnal heat generation.
03 High-Performance Windows Design
Fluit Studio utilises Passivhaus principles of window design: smart orientation, shading and sizing ensure the home is filled with natural light in cooler seasons while staying cool in warmer months. Windows are triple-glazed with thermally efficient frames to reduce heat loss.
04 Mechanical Heat Recovery Ventilation
These systems bring in fresh, filtered air while capturing warmth from outgoing air. MVHR ensures optimal air quality — critical for health, sleep, and day-to-day comfort — without energy waste.
05 Thermal Bridge-Free Construction
We minimise areas where heat could escape or cold could enter by eliminating thermal bridges. This is achieved by keeping internal structures simple and well-insulated, contributing to energy efficiency, comfort and sustainability.
Passivhaus Design Integration
We integrate Passivhaus principles into the architecture from the earliest stages of design, shaping orientation, form, glazing, and construction so that building performance is inherent to the design, not added later.
During early sketch design, we carry out preliminary performance assessments to guide key decisions. As the project develops, detailed PHPP modelling and certification (where pursued) are carried out in collaboration with an independent Passivhaus consultant and certifier.
Our documentation is developed to align with the technical requirements of the Passivhaus standard and support the process through construction.
What’s included:
- Early-stage design guidance and performance-informed decision making
- Collaboration with an independent Passivhaus consultant for PHPP energy modelling
- Detailed documentation aligned with Passivhaus technical requirements
- Co-ordination with an independent Passivhaus Certifier where certification is being pursued
Explore the Benefits of Passivhaus.
If you’re considering a new home or a renovation, let’s talk about how Passivhaus principles could shape a home that is comfortable, healthy and built to last.