Holz100 is not just a building system. It is a commitment to your family’s health, your home’s longevity, and the planet’s future.
Every Holz100 home is engineered to last centuries. Built entirely from pure, chemical-free wood — harvested at its peak during the waning moon — your home becomes a living sanctuary that breathes with you, protects you from fire and earthquakes, and actively improves your wellbeing.
With over 6,000 homes built across 33 countries, from the Arctic Circle to the tropics, Holz100 has proven itself in every climate, every condition, and every test.
Now it is your turn.
Below, you will find our transparent, 4-phase investment structure. No hidden costs. No surprises. Just clarity, quality, and the peace of mind that comes from building with intention.
Submit your project details. Our team will contact you within 2-3 business days to answer your questions, discuss your vision, and help you take the first step toward your forever home.
What is Holz100? Sustainable Timber Construction Redefined
Holz100 is an innovative wooden construction system developed by Dr. Erwin Thoma, an Austrian forester and pioneer in sustainable building technology. Unlike conventional timber construction or mass timber systems, Holz100 uses 100% pure, solid wood with no adhesives, chemicals, or synthetic materials.
The Holz100 system features 5 layers of wooden boards joined by dry wooden pegs — no glues, creating exceptionally durable, thermally efficient, and naturally healthy structures. Each Holz100 building is custom-engineered for your land, climate, and vision.
Key characteristics of Holz100 construction:
- 100% pure wood — no glues, chemicals, or toxins
- Moon wood harvesting — timber cut during waning moon for superior durability
- Fire-resistant — withstands 1,000 degree flames for 3 hours
- Earthquake-proof — certified for Japan’s strictest seismic standards
- Moisture and mould resistant — 50 year guarantee against mould and dampness
- Energy efficient — twice the insulation value of standard timber construction
- Healthy indoor environment — improves heart rate, sleep quality, and wellbeing
Holz100 Pricing Structure: 4 Transparent Investment Phases
Every Holz100 project follows a clear, 4-phase payment structure. Each phase delivers specific value and ensures quality at every stage of your build.
Phase 1: Feasibility Assessment
EUR 3,100 / CHF 3,000 / USD 3,700 / CAN 5,100 / AUD 5,100
(Non-Refundable, Credited Toward Project)
Our expert team conducts a comprehensive remote evaluation and desk top study of your land and project vision:
- Site analysis — topography, orientation, access, climate, soil conditions
- Preliminary concept sketch — 2D layout with 3D visualisation
- Material suitability review — Moon wood sourcing and structural feasibility
- Initial cost estimate — customised to your specifications
- 1 hour video consultation with Holz100 design team
This assessment determines if your land and vision are ideal for Holz100 construction before significant design investment. Your intial investment is credited directly toward your project if you proceed to Phase 2.
When: Due upon booking the assessment
Deliverables: Concept drawings, feasibility report, cost estimate
Phase 2: Design and Engineering Deposit
25% of Total Project Cost
Upon approval of your concept, this deposit secures your project slot and begins detailed engineering:
- Full architectural drawings — floor plans, elevations, sections, details
- Structural engineering — seismic, fire, and load calculations
- Energy performance analysis — thermal efficiency modelling
- Detailed material specifications — Moon wood grades, joinery, finishes
- 3D walkthrough visualisation and virtual reality model
This phase reserves your Moon wood allocation (harvested seasonally during the waning moon) and ensures your project is scheduled with our master builders. Your deposit covers specialised engineering, design refinement, and material procurement.
When: Due upon design approval
Deliverables: Complete construction documents, specifications, 3D models
Phase 3: Construction and On-Site Supervision
50% of Total Project Cost
During construction, our technical team ensures every component meets Holz100 standards:
- On-site technical supervisor — present 2-3 days per week
- Quality control inspections — every major installation milestone
- Local contractor coordination — foundations, roofing, utilities, finishes
- Progress documentation — weekly reports, photographs, and video updates
- Compliance verification — all work meets Holz100 specifications and local codes
Our supervision ensures your home is built with precision, craftsmanship, and the highest attention to detail. This phase covers materials, labour, and our expert oversight.
When: Due at project commencement (or in instalments as agreed)
Deliverables: Completed Holz100 structure, inspected and certified
Phase 4: Final Handover and Certification
Final Balance (25% Remaining)
Your new Holz100 home is complete. This final phase includes:
- Final inspection and punch list completion
- Activation of 50 year moisture and mould warranty
- Fire resistance certification and documentation
- Technical manuals, maintenance guides, and warranty documents
- Indoor air quality certification
- Handover ceremony and client orientation
Your home is now ready to provide decades of healthy, regenerative living for your family — backed by Dr. Thoma’s commitment to quality and sustainability.
When: Due upon substantial completion, before final handover
Deliverables: Certified home, all warranties active, complete documentation
Optional Enhancements for Your Holz100 Home
Customise your Holz100 home with these premium add-ons:
Gold Flax Embossed Moon Wood Harvest Guarantee
EUR 750 / CHF 700 / USD 1,000 / CAN 1,250 / AUD 1,500
A framed gold flax embossed certificate of your Moon Wood, designed to last as long as your house. The certificate confirms structural timber is harvested during the optimal waning moon phase for maximum durability and pest resistance. Includes certification documentation.
Biophilic Design Integration
EUR 5,000 / CHF 4,500 / USD 6,000 / CAN 8,000 / AUD 8,500
Enhance wellness features through strategic light design, acoustic optimisation, and air quality systems inspired by forest environments.
Forest Communication Study
EUR 1,500 / CHF 1,400 / USD 2,000 / CAN 2,500 / AUD 3,000
Commissioned report on local tree ecology and forest dynamics, connecting your home to the natural landscape (inspired by Dr. Peter Wohlleben’s research).
Lifetime Maintenance Plan
EUR 750 / CHF 700 / USD 1,000 / CAN 1,250 / AUD 1,500
Annual professional inspection, preventive maintenance, and minor repairs to ensure your Holz100 home remains pristine for generations.
Extended Warranty Package
EUR 5,000 / CHF 4,500 / USD 6,000 / CAN 8,000 / AUD 8,500
Upgrade to 75 year comprehensive coverage including structural, thermal, and environmental protection.
Premium Finishes and Customisation
Pricing Upon Request
Bespoke interior finishes, custom joinery, integrated smart home systems, and specialised acoustic treatments.
Holz100 Project Investment Example
For a 250m² residential Holz100 home with estimated total project cost of EUR 400,000:
Phase 1: Feasibility Assessment — EUR 3,100
Phase 2: Design and Engineering Deposit (25%) — EUR 100,000
Phase 3: Construction and Supervision (50%) — EUR 200,000
Phase 4: Final Balance (25%) — EUR 100,000
Total Project Investment — EUR 403,100
Optional: Moon Wood Harvest Guarantee — EUR 750
Optional: Lifetime Maintenance Plan (Year 1) — EUR 750
Total With Optional Enhancements — €404,600
Actual costs vary based on land location, complexity, local regulations, and customisation choices. This is an illustrative example.
Why Choose Holz100? Benefits of Chemical-Free Timber Construction
Health and Wellbeing
Scientific research demonstrates that living in solid wood environments improves cardiovascular health, sleep quality, and overall wellbeing. When you enter a Holz100 home, your body’s nervous system responds within 10 minutes, slowing your heart rate and deepening relaxation. Sleeping in a wooden room results in a slower heart rate, effectively adding 1 hour of life per day through regenerative sleep.
Fire Safety and Earthquake Resistance
Holz100 construction is certified fire-resistant and earthquake-proof. In fire testing, Holz100 walls withstood 1,000 degree flames for 3 hours with only 1.8 degree temperature increase on the opposite side. Unlike concrete, which cracks and fails under extreme heat, our wood chars on the flame side, but does not burn nor transfer any heat. Also unlike concrete that cracks and fails under tensile loads imposed by an earthquake, our wood only flexes and returns to it’s original shape.
Environmental Sustainability
Holz100 uses pure wood harvested sustainably during the waning moon phase. No chemicals, no synthetic insulation, no waste. The entire manufacturing process is powered by solar energy, and every component is recyclable or biodegradable.
50 Year Mould and Moisture Warranty
Holz100 offers an unmatched 50 year guarantee against moisture and mould. Over 2,500 Holz100 buildings have been constructed worldwide, and not a single complaint about mould or moisture has been recorded.
Energy Efficiency
Holz100 walls provide twice the insulation value of standard timber construction. A 36cm Holz100 wall performs as well as a 75cm wall made from conventional cross laminated timber. Your home requires minimal heating or cooling, reducing energy costs and environmental impact.
Longevity and Durability
Holz100 homes are engineered to last centuries. The pure wood structure, combined with Moon wood harvesting practices, creates timber that is naturally resistant to pests, fungi, and decay. Your investment is built to outlive you and your family.
Important Terms and Conditions
- The assessment fee is non-refundable but fully credited toward your project if you proceed to Phase 2.
- The 25% Phase 2 deposit secures your project timeline and Moon wood allocation. This is non-refundable once materials are ordered.
- Payment plans and financing options may be available. Contact our team to discuss.
- All prices are in Euros. International clients should account for currency exchange rates.
- Additional costs may apply for complex sites, extended timelines, or special requirements. These will be clearly outlined in your customised quote.
- Upon completion, your Holz100 home includes a 50 year guarantee against moisture and mould — a commitment unmatched in the building industry.
Ready to Begin Your Holz100 Journey?
Submit your project details below. Our team will review your information and contact you within 2-3 business days to discuss your vision, answer your questions, and arrange the initial feasibility assessment.
Holz100 Project Inquiry Form
Thank you for your interest in Holz100!
We look forward to helping you build your home for generations.
The Holz100 Team @ MECi Trade