Highest standard of construction
Passivhaus
What is Passivhaus?
Passivhaus is more than just a norm: it represents the highest standard of energy efficiency and comfort in the world, achieved through engineering and design brought to perfection.
Super Insulation
High-performance insulation envelope eliminates thermal bridges and maintains consistent indoor temperatures.
Airtight Construction
Precision-sealed building envelope prevents uncontrolled air leakage and energy loss.
Heat Recovery Ventilation
Mechanical ventilation with up to 95% heat recovery ensures fresh air without energy waste.
Super Insulation
High-performance insulation envelope eliminates thermal bridges and maintains consistent indoor temperatures.
Airtight Construction
Precision-sealed building envelope prevents uncontrolled air leakage and energy loss.
Heat Recovery Ventilation
Mechanical ventilation with up to 95% heat recovery ensures fresh air without energy waste.
Solar Optimization
Strategic window placement and orientation maximize passive solar gains in winter.
Triple Glazing
High-performance triple-glazed windows with insulated frames for minimal heat loss.
Thermal Bridge Free
Careful detailing at junctions eliminates cold spots and prevents condensation.
Solar Optimization
Strategic window placement and orientation maximize passive solar gains in winter.
Triple Glazing
High-performance triple-glazed windows with insulated frames for minimal heat loss.
Thermal Bridge Free
Careful detailing at junctions eliminates cold spots and prevents condensation.
Certification
Obtaining Passivhaus certification requires meeting the strictest construction criteria in the world.
 |  |  | |
|---|---|---|---|
| 1 Analysis | |||
| Verifies the designer's theoretical knowledge | ✓ | ✓ | ✓ |
| 2 Process | |||
| Ensures consistent quality of materials and components | — | — | ✓ |
| Ensures manufacturing quality with 1,200+ indicators | — | — | ✓ |
| 3 Outcome | |||
| Meets airtightness threshold (below 0.6 ACH@50 Pa) | — | ✓ | ✓ |
| Meets heating/cooling energy demand (below 15 kWh/m² per year)* | — | ✓ | ✓ |
* Achieving this in the final stage depends on site-specific factors such as orientation and natural shading.
Economy & Environment
Even though in some cases the initial costs may be slightly higher, passive houses lower their expenses in the long run. Energy bills are drastically reduced and the health benefits are huge.
Global Adaptability
Although the concept of the passive house originated in Europe, the basic principles - advanced insulation, intelligent ventilation, airtightness - can be applied almost anywhere, from the polar regions to the tropics.
Energy Efficiency Scale
BIOBUILDS homes operate at the very top of the energy efficiency scale - consuming a fraction of the energy required by conventional buildings.
Scale: 0 - 220+ kWh/m² per year (primary energy)
Certifications that matter.
Passivhaus System Certification
The MODULAR system is certified by the Passivhaus Institute from Darmstadt to the world's strictest thermal, airtightness, and ventilation standards. Over 2,000 parameters tested.
EPD International
Full lifecycle transparency audited by a third party. Confirms carbon-negative at -101 kg CO2e/m² from raw material to end of life.
FSC & PEFC
Chain-of-custody on all applicable timber. Timber traceable from sustainably managed European forests to your home.
Questions you might be asking.
THE STANDARD
Passivhaus is Europe's strictest building performance standard, developed by the Passivhaus Institut in Darmstadt, Germany. It goes far beyond energy efficiency: it's a holistic approach to airtightness, ventilation quality, thermal bridge elimination, and optimized solar orientation. A certified Passivhaus home uses a maximum of 15 kWh/m² per year for heating, that's 10x less than the average European home.
It's the only standard that already meets Europe's 2050 energy targets today.
See how this translates to real savings.Six principles work together: (1) a compact, thermally optimized form, (2) extreme airtightness to eliminate drafts and heat loss, (3) high-performance triple-glazed windows that act as solar radiators, (4) elimination of thermal bridges, (5) controlled ventilation with heat recovery, and (6) optimized solar gain orientation.
BIOBUILDS implements all six in every home, and goes further with organic materials and a carbon-negative lifecycle.
See the materials that make it possible.nZEB is the EU's baseline standard, requiring roughly 50-100 kWh/m² per year depending on the climate zone. Passivhaus requires 15 kWh/m² per year or less, making it 3-7x more demanding.
More importantly, Passivhaus goes beyond energy numbers: it certifies airtightness, ventilation quality, and thermal comfort as measurable performance thresholds. nZEB sets a minimum. Passivhaus sets the actual target.
Talk to us about certification details.THE PERFORMANCE
Both. Passivhaus is climate-adaptive; homes are designed for the specific climate zone where they'll be built. The same insulation and airtightness that keeps heat in during winter keeps heat out during summer.
BIOBUILDS delivers across the European continent, from Nordic to Mediterranean climates.
See real projects across different climates.A Passivhaus home typically costs around 20% more than a standard new build, sometimes more depending on the country and specifications. However, modular construction like BIOBUILDS brings costs close to the price of a conventional new home, thanks to lean production and bulk material sourcing across the EU.
The operational savings are dramatic: heating costs drop by up to 96%, and the home meets energy standards that won't need retrofitting for decades. This varies by country, but the trend is consistent.
Explore pricing in our catalog.BIOBUILDS holds Passivhaus Component certification for the entire modular structure. This is actually stricter than the standard Passivhaus Classic certification for a house on land, because it evaluates far more parameters on the building component itself: thermal performance, airtightness, moisture behavior, and structural integrity of the module as a standalone unit.
Passivhaus Classic, Plus, and Premium are certifications for a finished house in its final location. Our Component certification ensures the module exceeds those requirements before it even leaves the factory.
Learn about the materials behind the certification.