We build ADUs that last — on time and on budget.
Uni Construction is a construction company built around one thing: delivering quality ADU projects that homeowners can count on. From foundation to finish, our construction team executes with precision, transparency, and respect for your property.
ADU Types We Serve
We construct every type of ADU:
Detached ADU — Ground-up construction of standalone units including foundation, framing, MEP, and finish work.
Attached ADU — Construction that ties into your existing home's structure with careful attention to connections, waterproofing, and code compliance.
Garage Conversion — Full construction services to convert your garage into a livable, code-compliant space with all necessary upgrades.
Junior ADU (JADU) — Interior construction for compact units up to 500 sq ft — no new foundation needed, minimal disruption to your daily life.
Existing Floor Conversion — Renovation and construction to turn underused floors into fully functional ADUs with new kitchens, bathrooms, and separate entries.
Service Areas
Uni Construction proudly serves homeowners across the San Gabriel Valley and greater Los Angeles area. Our construction company services for ADU projects are available in:
Next Steps
Ready to build? Uni Construction makes ADU construction simple and predictable. Get a free project estimate today. Contact us
Related Services
If you’re planning an ADU, explore ADU Design, Permitting, and Construction—or speak with our General Contractor team.



