Prefab ADU

The Big Monolith House

Turnkey ADU with 2 bedrooms, kitchenette, full bathroom & floor heating.

From 209 900 EUR
The Future of ADUs–A Prefab Mirror House for Modern Living

Meet the Big Monolith – a 432 sq. ft. prefab glass house designed for those who refuse to settle for ordinary. Whether you're adding a guest house, home office, rental unit, or creative studio, this Scandinavian-designed, Texas-built ADU blends seamlessly into your backyard while offering unmatched durability and style.

Length
Width
Height
Total area 40.9 m²
Weight
Prefabricated Tiny Mirror House with Two Bedrooms
Prefabricated Tiny Mirror House with Two Bedrooms
What's included?
  • 2 Bedrooms
  • Kitchenette Kitchenette
  • Shower Full Bathroom
  • Wardrobe Wardrobe
  • Floorheating Radiant Floor Heating
  • Scandinavian Design
Stunning Mirror Design. Multifunctional Living.

Reflects its surroundings, creating a seamless, modern aesthetic. Two bedrooms, kitchenette, and bathroom—ideal for guests, work, or rental.

Built to Last for Year-Round Comfort

Full steel frame, industrial-grade glass, and premium materials ensure decades of durability. Radiant floor heating and UV-reflective glass for perfect climate control.

“The Big Monolith is more than a prefab or ADU—it’s a statement. With its bold glass facade and steel frame, it’s built to last, stand out, and completely change your idea of what a backyard can be. You don’t settle for ordinary, and neither should your space.‘’

Antonio Gonzalez President of ÖÖD USA

Delivered Turnkey

A true plug-and-play solution, the Big Monolith arrives fully assembled and ready for use. Just connect to electricity, water, and sewage, and you’re all set to enjoy your new space. No fuss, just effortless living.

Is Big Monolith Right for You?

If you’re a homeowner looking for a luxury backyard ADU with modern aesthetics and premium construction, the Big Monolith is the ultimate choice.

From 209 900 EUR

Frequently Asked Questions

The Big Monolith is a modern, prefabricated mirror house designed for versatile use, such as a guest house, home office, or rental unit. Built with durable steel and glass, it’s engineered to last for decades while offering contemporary, sleek design.

Installation is quick and easy. Once it arrives, it can be fully set up in a day. All you need to do is connect to electricity, water, and sewage, and it’s ready to go.

Two bedrooms, kitchenette and full Bathroom. Radiant floor heating. Year-round climate control. Industrial steel frame and mirror glass facade. Insulated for both heat and cold. Modern Scandinavian design.

Absolutely! With its modern design, high-quality materials, and low maintenance, the Big Monolith is perfect for short-term rentals. Its sleek, contemporary look will attract guests, and it’s built to handle the demands of frequent use.

Yes! The Big Monolith is designed with flexibility in mind. Whether it’s a quiet office retreat, a creative studio, or a private workspace, it offers the perfect environment to work from home in style and comfort.

It’s always best to check with your local authorities for specific permit requirements.

The Big Monolith is designed with energy efficiency in mind. The insulated glass and radiant floor heating system help maintain a comfortable temperature year-round, making it an energy-efficient solution for any climate. However, energy efficiency can also depend on how the space is used, ensuring it aligns with your lifestyle and needs for optimal performance.

Built to last for generations, the Big Monolith is constructed with high-quality steel and glass, ensuring durability and longevity. It's a solid investment that will hold up to the test of time.

ÖÖD Houses are built in Houston, Texas and in Estonia, Europe.

Ready to add a Big Monolith to your backyard or property? Reach out to us for a consultation, and we’ll walk you through the process from ordering to installation. It’s that simple!
Mini – Tiny Prefab Mirror Sauna by ÖÖD
Level Up

Add a Mirror Sauna to Your Mirror House.

A heated wellness space, the Mirror Sauna blends sleek design with the latest wellness trends, offering a luxurious escape right in your own backyard.

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