Monolithic Dome Builders in Colorado

When others said it couldn’t be done, Tri-Lakes Contracting stepped in and made it happen—bringing to life a homeowner’s dream that once seemed impossible.

Perched on a remote, forested mountaintop in Teller County, Colorado, this ambitious project marks a groundbreaking moment in the region’s development history: the first-ever permitted monolithic dome residence in the county.

In a bold display of vision and progress, the Teller County building department and county board approved this forward-thinking structure—a testament to their willingness to embrace resilient, wildfire-resistant, and energy-efficient building solutions. Their support of this project reflects a broader commitment to innovative development that balances safety, sustainability, and long-term value for the community.

Designed by Monolithic Constructors, Inc., this dome faced extraordinary challenges: high-elevation terrain, limited access, fire-prone forests, and strict permitting requirements. But our team didn’t shy away. We championed the project, working closely with engineers and local officials to gain approval, break ground, and deliver a one-of-a-kind home built to withstand Colorado’s harshest elements.

This project turned a homeowner’s once “impossible” dream into a reality. When no other contractors were willing to touch it, Tri-Lakes Contracting made the vision real.

We transformed an untouched mountaintop into a build-ready, code-compliant site and executed every phase of construction for:

• A two-story main monolithic dome
   
• An adjacent garage dome,
   
• And an underground tunnel connecting both structures
   

Our team completed all critical groundwork, including:

• Selective forest clearing and precise grading
   
• Tunnel excavation and dome foundation preparation
   
• Driveway and access road construction through steep, forested terrain
   
• Embedding the dome into the mountainside for structural resilience and thermal efficiency
   

The result: a home that’s both beautiful and nearly indestructible — a fortress built into the landscape, ready to stand for generations.

This property is fully self-sustaining thanks to carefully engineered systems, including:

• Two 5,025-gallon underground potable water storage tanks, buried below the frost line and capable of supplying the residence with water year round
   
• A high-efficiency, fully engineered septic system, tested and installed to meet code and long-term usage needs
   

These systems ensure complete off-grid functionality, ideal for families seeking long-term independence, resilience, and reliability.

Traditional homes are typically built to last 30 years — often just long enough for the mortgage to be paid off before major repairs begin. In contrast, monolithic domes are built to last over a century.

That means:

• Minimal maintenance
   
• Extraordinary energy efficiency
   
• Wildfire and disaster resistance
   
• Massive long-term return on investment
   
• Unique architectural appeal with growing market demand
   

This structure is not just a home — it’s a lasting asset. In our view, it's one of Teller County’s most valuable properties, built to outperform and outlast nearly every conventional home in the region.

Tri-Lakes Contracting handled every infrastructure element from start to finish, including:

• Excavation for tunnels, tanks, foundations, and driveways
   
• Grading, slope stabilization, and erosion control
   
• Pulling utilities and electrical service more than 3,000 feet to the build site
   
• Stormwater management and drainage
   
• Full permit coordination, inspection oversight, and regulatory compliance
   

Our team turned an unbuildable mountain into a fully functional, high-value homestead.

For homeowners seeking strength, safety, and sustainability — especially in regions prone to wildfires, storms, or utility disruptions — monolithic domes are more than structures. They’re smart investments.