
MODULAR
Production time
Lower energy bills
Organic materials
Meet the home of the future.
Now choose yours.
★★★★★ 4.8 on Google, Passivhaus certified, 200+ homes prefabricated in the EU
Your home. Built in 3 weeks.
Your home. Built in 3 weeks.From factory to your doorstep
No construction site. No stress. No delays. Modular gives you back the most important resource: your time.

Efficient by design.
Factory-built.
Built in a factory. Not improvised on your land. No stress, no compromises, no surprises.
World's strictest standard.
Passivhaus certified. Over 2,000 tracked parameters considered. Uses almost no energy to heat or cool.
Built for generations.
98% organic materials. Zero VOCs. Medical-grade air. 80+ year lifespan.
Factory-built.
Built in a factory. Not improvised on your land. No stress, no compromises, no surprises.
World's strictest standard.
Passivhaus certified. Over 2,000 tracked parameters considered. Uses almost no energy to heat or cool.
Built for generations.
98% organic materials. Zero VOCs. Medical-grade air. 80+ year lifespan.
Your life evolves. So does your home.
Start today. Expand tomorrow.
MODULAR is designed to grow. Add rooms when you need them, relocate if your life changes. No cement foundations, just ground screws that are faster, cheaper, and fully reversible.

No cement needed
Ground screws are faster, cheaper, and more durable than traditional foundations.
Grows with your family
Add modules when you need them, without a huge initial investment.
Easy relocation
Your home moves with you as your lifestyle changes.
No cement needed
Ground screws are faster, cheaper, and more durable than traditional foundations.
Grows with your family
Add modules when you need them, without a huge initial investment.
Easy relocation
Your home moves with you as your lifestyle changes.
We could tell you. But they said it better.
BULGARIA
By lunch our home was ready.
Don't take our word for it.
Google Reviews
Viorel
★★★★★The build process was incredibly smooth. Factory precision means no weather delays. Our home arrived complete and ready to move in.
9 months ago
Elena
★★★★★It felt like I had ordered a high-tech gadget, not a house.
5 months ago
Emanuel
★★★★★Amazing people and amazing product! The standard they are building at is higher than competitors across Europe but at a lower price. You can visit one of their homes before buying!
2 months ago
Nick
★★★★★Visited their showroom and was blown away. The attention to detail is exceptional. You can really feel the quality difference.
10 months ago
Alex
★★★★★Great team, great homes. Looking forward to expanding my 40m²!
3 months ago
Andreea
★★★★★Es fühlte sich an, als hätte ich ein High-Tech-Gadget bestellt, kein Haus.
4 months ago
Annie
★★★★★The energy efficiency is incredible. Our heating bills are almost zero, and the home stays comfortable year-round.
6 months ago
James P.
★★★★★Best decision we made. The build quality exceeds traditional construction, timeline was faster than expected.
1 year ago
Laura
★★★★★From design consultation to final delivery, everything was transparent and professional. The modular construction meant minimal disruption.
7 months ago
A. Ingrid
★★★★★Innovation at its finest. The smart home integration came pre-installed and works flawlessly. This is what modern housing should be.
11 months ago
Gabriela M.
★★★★★We were skeptical about modular homes at first, but after seeing the quality and customization options, we were sold.
8 months ago
Emma L.
★★★★★The sustainability aspect was our main concern, and they delivered beyond expectations. Net-zero ready, beautiful natural materials.
1 year ago
Viorel
★★★★★The build process was incredibly smooth. Factory precision means no weather delays. Our home arrived complete and ready to move in.
9 months ago
Elena
★★★★★It felt like I had ordered a high-tech gadget, not a house.
5 months ago
Emanuel
★★★★★Amazing people and amazing product! The standard they are building at is higher than competitors across Europe but at a lower price. You can visit one of their homes before buying!
2 months ago
Nick
★★★★★Visited their showroom and was blown away. The attention to detail is exceptional. You can really feel the quality difference.
10 months ago
Alex
★★★★★Great team, great homes. Looking forward to expanding my 40m²!
3 months ago
Andreea
★★★★★Es fühlte sich an, als hätte ich ein High-Tech-Gadget bestellt, kein Haus.
4 months ago
Annie
★★★★★The energy efficiency is incredible. Our heating bills are almost zero, and the home stays comfortable year-round.
6 months ago
James P.
★★★★★Best decision we made. The build quality exceeds traditional construction, timeline was faster than expected.
1 year ago
Laura
★★★★★From design consultation to final delivery, everything was transparent and professional. The modular construction meant minimal disruption.
7 months ago
A. Ingrid
★★★★★Innovation at its finest. The smart home integration came pre-installed and works flawlessly. This is what modern housing should be.
11 months ago
Gabriela M.
★★★★★We were skeptical about modular homes at first, but after seeing the quality and customization options, we were sold.
8 months ago
Emma L.
★★★★★The sustainability aspect was our main concern, and they delivered beyond expectations. Net-zero ready, beautiful natural materials.
1 year ago
From one family to yours.
BIOBUILDS was born from one man's mission to create the healthiest, most efficient home for his children. That same obsession drives every home we build today.
RIA Retreat
RIA, the most efficient prefab house in the world, recognized globally. With a consumption of only 2 kWh/m² per year. It was our first concept to demonstrate that speed, efficiency, sustainability and health can coexist.


SOL Residence
The first street of passive houses, with a consumption of as little as 12 kWh/m² per year (up to 28x more efficient than the EU average). Built using prefab panels with straw insulation. Nearly zero bills and thousands of tons of CO2 saved using healthy, organic materials.
Partners




























European. Traceable. Certified.
39%
Germany
30%
Romania
18%
Austria
6%
Finland
4%
Italy
3%
Other EU
For your peace of mind.
5-year structural warranty + all producer warranties.
Engineered for a 80+ year lifespan.
Full transparency. No overbudget, no overtime.
Questions you might be asking.
THE BASICS
BIOBUILDS was born in 2012 from a father's desire to build the best home for his family. Today, it is redefining how homes are designed, built, and lived in.
We merge radical innovation with sustainable design to build the future.
First, we moved the entire construction process from site to factory, minimizing both human error and delays. Secondly, with the newfound precision and standardization, we adopted the world's strictest standards: Passivhaus for efficiency and EPD for sustainability.
BIOBUILDS homes deliver a groundbreaking set of advantages. Energy: ~95% lower consumption. Speed: move-in 3 weeks, instead of 3 years. Sustainability: built with over 98% natural materials.
This is so much more than a home; it's a blueprint for a healthier, more sustainable future. Discover the future of living at biobuilds.com.
The world's strictest energy efficiency standard, developed at the Passive House Institute in Darmstadt, Germany.
Not a design philosophy. An engineering specification, audited line by line. Wall U-value under 0.15 W/m²K. Airtightness under 0.6 air changes per hour at 50 pascals, blower-door tested. Triple-glazed windows under 0.8 W/m²K. Heat recovery ventilation above 75%. Thermal bridges effectively eliminated. Either the building meets the math or it doesn't get certified.
The average European home consumes 350 kWh/m² per year. A new conventional build, around 150. A Passivhaus home sits at 15.
MODULAR by BIOBUILDS is a fully Passivhaus Darmstadt-certified modular construction system. The first of its kind in the world.
The problem with most Passivhaus projects is cost. Building to this ground-breaking level of efficiency requires advanced materials science and project design. MODULAR solves this through prefabrication.
Prefab is the principle that a home should be built where it can be built well: indoors, with precision, before it ever touches your land.
Traditional construction is exposed to weather, fatigue, improvisation, and a chain of subcontractors, none of whom answer for the whole. The result is the industry we all know: delays, defects, budgets that drift, and years of your life spent watching it happen.
Prefab moves that process into a factory. Quality is controlled, not promised. Materials are protected, not soaked. Tolerances are measured in millimeters, not centimeters.
50% on site and 50% in factory.
But we wanted to take it further.
Modular is the most advanced form of prefab. ~99% built in-factory.
Instead of shipping flat panels for on-site assembly, we ship complete rooms, with walls, insulation, wiring, plumbing, and finishes already in place. 10 days in the factory. 2 days in transport. 3 days on site. Move-in in 3 weeks.
Modular isn't just faster. It's a new paradigm to deliver a home that's efficient, healthy, and sustainable, at scale.
The most complex sustainability calculation for buildings. Every material, every emission, independently verified.
Modular's EPD proves it is more than sustainable. It is carbon negative, actively contributing to a healthier planet.
Learn more about our health and sustainability principles.The synthesis. Passivhaus efficiency, prefabricated precision, modular speed, EPD-verified materials, in one home.
All under five unwavering principles: prefabricated. Made in Europe. Efficient. Healthy. Sustainable.
Meet the five principles.THE HOUSE
Timber-frame. 98% organic, sustainably sourced. Wood fiber insulation, triple-glazed windows.
The most advanced building material isn't new. But it is healthy. It is renewable. It's wood.
See what goes into every wall.A smart ventilation system with an integrated heat pump. All-electric, ultra-efficient.
The Passivhaus envelope combined with triple-glazed windows that act as solar radiators means the ventilation system alone heats the entire home.
Depending on your preferences or location, we can add floor heating or other complementary systems.
See how Passivhaus heating works.The roof has a 3–5 degree slope despite looking seemingly flat. Water drains naturally.
EPDM membrane, the premium standard for flat roofing. Simulated load capacity over 300 kg/m² (EU average: 80 kg/m²). Durable, weatherproof, maintenance-free for decades.
Explore all materials and specifications.35cm precision-engineered timber-frame. Airtight. Ultra-insulated. Built to outlast traditional masonry and conventional timber-frame.
80+ year lifespan. Over 85% of new homes in Sweden are built on timber-frame with 70+ year average lifespans. MODULAR's Passivhaus-certified structure significantly extends this.
Learn how factory precision extends lifespan.THE PROCESS
Two options. A full turnkey home, ready to move in. Or the complete Passivhaus-certified structure and envelope, so you can be your own interior designer.
View both options, models, and pricing transparently in our catalog.
Explore models and pricing.Standard financing, exactly like any other home. Modular is legally classified the same way as traditional construction. (Except we skip the part where it takes 2 years to build.)
Because of the Passivhaus energy rating, most BIOBUILDS homes qualify for green financing programs with preferential terms. Eligibility depends on your bank and local regulations.
Talk to us about financing options.Modular is authorized like any other home. Sometimes even easier to approve depending on your municipality.
It's also off-grid ready if your area allows it, thanks to ultra-low energy demand.
Have questions about permits? Get in touch.We deliver across Europe.
Transport costs depend on your location.
Contact us for a delivery estimate.
DOWNLOAD CATALOG
Download Catalog
Floor plans, specifications, and pricing. No obligation.
















