Custom design. Prefab precision.
Prefab without the cookie cutter.
Start with a state-approved plan or create an ADU around your backyard.
Custom prefab ADUs for California. Factory-built precision, steel strength, and design flexibility up to 1,200 sq. ft.
Why Build ADUs With Metricon Homes?
- Custom Design
- Prefab Steel Construction
- Built Locally
- Faster Approvals
- Firesafe Design
- Design to Doorstep
Explore Our FireSafe ADU Plans
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FireSafe ADUs Built Locally In Northern California
Steel-built Structure
We use precision-engineered steel framing instead of wood—delivering a stronger, Firesafe structure that stands up to fire, termites, rot, and the test of time.
- Firesafe and fire resistant
- Resists termites, rot, and warping
- Stronger, straighter, and more precise
- Built for safety and long-term durability
Engineered for better earthquake resistanceDurable materials for long-term value

Hear From Our Customers - 5 Star Reviews!
Design to Doorstep services.
We do the work so you don't have to.
Check your property
Tell us about your property and the ADU you have in mind.