Japan’s first3D-printed home made
primarily from earth

Lib Earth House

“The Tesla of Housing”

Japan’s first 3D- printed home made primarily from earth has arrived.

Redefining“home”
—Building the house of the future

Tesla isn’t just an electric-car maker; it builds the car of the future.
In the same spirit, we are creating the home of the future.

Our 3D- printed homes use an innovative, sustainable construction method that reduces environmental impact while delivering new economic and social value.
Guided by our mission — “Driving housing innovation through sustainability and technology” — we see these 3D- printed homes as a tangible commitment to a more sustainable future.

Lib Earth House

NEWS

What Is a 3D--Printed Home?

Building homes with greater freedom, pushing past architectural convention—Lib Work’s new way of creating living spaces

A 3D--printed home is a house constructed with additive-layer 3D- printing technology.
By layering material directly from digital design data, the printer can create shapes that are far more flexible and complex than those achievable with conventional building methods.
The technique expands design freedom and enables buildings to be erected with far greater efficiency.

  • Lib Earth House
    Construction Process

  • STEP01

    Carry out standard foundation work on site.

  • STEP02

    Install the 3D- printer on the foundation and print directly on site (on-site method).

  • STEP03

    Layer the material while tracing curves, straight lines, and organic forms to build the exterior walls.

  • STEP04

    Remove the printer and erect the primary timber framework inside the printed walls.

  • STEP05

    Carry out standard interior finishing.

PATENT PENDING

About building materials for 3D printers

Patent Application Filed

  • 01

    Primarily earth, lime & plant fibers
    —100 % natural

    Instead of cement, we rely on soil, lime and natural fibers—abundant, renewable resources with a minimal environmental footprint.
    Our proprietary mix-design delivers the strength and workability required for construction, offering a new, sustainable alternative for the built environment.

  • 02

    Dramatically lower CO₂ emissions during production

    By eliminating cement and using earth, lime and natural fibers, our custom mix slashes the carbon load of the manufacturing process itself.
    For a 100 m² home, CO₂ output is cut by roughly 50 % versus reinforced-concrete construction—and even lower than timber builds.

REASON

Lib Work’s New Challenge

Why We Are Pursuing
3D--Printed Homes

Housing performance has improved over the years, yet the “21st-century homes” we once dreamed of as kids have been slow to appear. 3D--printed construction has the power to change that—and to spark real innovation in the housing industry.

The hallmark of 3D--printed homes is form freedom.
From dramatic diagonal lattices to flowing curves, designs once impossible by hand suddenly come within reach.

Lib Work quickly zeroed in on this technology to pioneer the next generation of homebuilding.
Our goal isn’t tech for tech’s sake; it’s to make “the future houses we sketched as children” and “a life that thrills” a reality.

Until now, home design has been boxed in by “standard shapes.”
3D- printing breaks that box—letting every customer’s “I wish I could live in a house like this” take shape with gentle curves and truly unique forms.

We also want the construction process itself to be fun.
3D--printed homes are a way to inject fresh excitement into homebuilding.

“Building tomorrow’s homes—today.”
Through homebuilding, Lib Work will keep bringing new thrills to people’s everyday lives.

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POINT

Crafted by Lib Work

Key Points of
Our 3D--Printed Homes

Lib Work is the first in Japan to build a 3D--printed house whose main ingredient is earth.
While sectors such as automotive manufacturing keep reinventing their production methods, housing has seen little true innovation for more than 50 years. Minor tweaks are no longer enough—the industry needs forward-looking change.

01High-Flexibility Design

Because these homes are fully custom-built, free-form planning lets you achieve sophisticated, near-futuristic designs.

3D--printed homes are often seen as “cookie-cutter boxes,” but Lib Work’s versions are true custom builds. Flexible design means we can deliver a one-of-a-kind home tailored to each client’s wishes.
And because they’re 3D- printed, intricate geometries and sweeping curves that human hands can’t easily craft become possible. Enjoy a new kind of home unconstrained by yesterday’s limits.

02Reliable Strength & Code Compliance

Tackling seismic safety and regulations—once major hurdles for 3D--printed homes

The Lib Earth House uses wood for the main structure, and is designed with 3D printed earthen walls as structurally independent exterior materials. Both the main structure and the 3D printed exterior walls have a strength equivalent to earthquake resistance grade 3, making it a safe home to live in even in Japan, a country prone to earthquakes. In addition, after discussions with government agencies including the Ministry of Land, Infrastructure, Transport and Tourism, the house has obtained a building confirmation certificate and has been officially approved as a building that complies with the Building Standards Act.

03Solving Industry-Wide Challenges

Addressing the aging craftsman workforce and other housing-industry issues

The aging of skilled craftsmen is a serious issue; within 10-20 years their numbers are projected to fall to just one-third of today’s level. Because 3D--printed construction outputs directly from digital data, it provides a powerful way to ease this labor shortage.
At the same time, the technology unlocks highly expressive forms unattainable by hand, enabling unique homes with a level of individuality never before possible.

04Environmental Consideration

Why we chose earth—Lib Work’s commitment to the planet and sustainability

Earth is a naturally abundant, easily sourced material that can ultimately return to nature, keeping harmful substances to an absolute minimum. Compared with 3D- printers that rely on concrete or cement, our earth-based mix slashes CO₂ emissions and is inherently kinder to the environment.

05Harmony with Japan’s Climate

Leveraging our timber-home expertise to blend familiar Japanese design with modern performance

Earth has been used as a building material in Japan for centuries; paired with timber—the country’s traditional structural staple—it feels instantly familiar. Beyond culture, earth naturally regulates humidity and insulates well, making it ideal for Japan’s hot, humid summers.
Re-utilising local soil as a construction resource will not only cut environmental impact and disaster risks, but also enable truly region-specific, locally sourced homes.

PROMOTIONAL MOVIE

TO THE FUTURE

Future Prospects for 3D--Printed Housing

The potential of 3D--printed construction goes far beyond housing—it can serve luxury villas, saunas, and countless other applications.
We are seeking partner companies to help build the architecture of tomorrow. If you’re interested, please feel free to reach out.

  • Nationwide Franchise Roll-out of 3D--Printed Homes

    • Printer installation
    • Data preparation
    • Training
    • Maintenance

  • Non-Residential 3D- Printing

    • Glamping sites
    • Hotels
    • Façades
    • Retail stores

  • Overseas Expansion

    • Expansion into Indonesia

  • Space Development Projects

    • Collaboration with space-development firms
Seeking Partner Companies

MODEL HOUSE

Model Home Showcase

Lib Work offers two types of 3D--printed model homes.

A residence featuring an open-plan living/dining/kitchen, toilet, bath, bedrooms, and an inner courtyard

Lib Earth House model B

Completed in May 2025, this is our second showcase home.
Leveraging on-site 3D- printing, the cluster-mode layout allows versatile arrangements of earthen volumes.
The design actively invites the outdoors in, creating spaces that aspire to live in harmony with nature.

model B

Floors:
single-storey
Structure:
Wooden frame construction
Building footprint:
107.23 m²
Gross floor area:
97.93 m²

Prototype model #1,
completed January 2024

Lib Earth House model A

Circular floor plan that leverages the strengths of 3D- printing
Diagonal lattice patterns impossible to craft by hand
Entrance door features facial-recognition auto-opening, showcasing active IoT integration

model A

Floors:
single-storey
Structure:
moment-resisting frame in laminated timber (glulam)
Floor area:
15 m²

CONSULTATION

Now accepting pre-orders

If you would like to purchase, please first check out our electronic catalogue.
Click here to request an electronic catalogue

Sales reservation acceptance

FAQ

Frequently Asked Questions

Does the project comply with Japan’s Building Standards Act?
Yes. For model A we filed the building-approval application within an urban-planning zone and obtained the confirmation certificate. This officially certifies that our earth-based 3D--printed house complies with Japan’s Building Standards Act.
Can future models also obtain building approval?
Yes. Model A has already passed the process, and every future model will follow the same legal pathway to secure approval.
Is a two-storey version feasible?
For now, only single-storey builds are possible because the current printer outputs up to roughly 3 m in height. We are, however, developing a next-gen printer to enable two-storey homes in the future.
How earthquake-resistant are the houses?
Robust. Model A’s timber frame and earth walls both meet the seismic requirements of the Building Standards Act. Model B is engineered to withstand forces equivalent to Seismic Grade 3—the highest residential class.
How is long-term durability being assessed?
Model A is positioned as a prototype and remains under ongoing observation. For the materials planned for model B, we are conducting joint research to verify long-term durability.
What about thermal insulation performance?
We are still running measurement tests on the thermal-insulation properties of model A’s materials. The same tests will be conducted on the materials planned for model B.

HOUSING PROJECT
ON MARS

Mars Housing Construction Project

By utilising raw materials found directly on Mars, we can minimise the transport of resources from Earth and dramatically reduce costs. Programmed construction robots will also allow for rapid, short-schedule builds. Moreover, studying housing development in the harsh, resource-constrained environment of space is expected to yield even more innovative and sustainable construction methods.

Development Partner

Arup is a London-headquartered engineering and consulting firm. With designers, advisors and specialists worldwide, the company has supported sustainable development projects in more than 140 countries.

INSTAGRAM

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