ADU Construction in San Bernardino County, CA
Detached ADUs, garage conversions, and junior ADUs built to current state law.
Get a Free QuoteAn ADU is part rental income, part home office, part guest house, part multi-generational space. We design and build all three California ADU types and handle the permit lift from day one.
What we handle
- Detached new-build ADUs up to 1,200 sq ft
- Garage conversions
- Junior ADUs inside the primary home
- Utility hookups and separate meters
- Kitchen, bath, and laundry build-outs
- Permitting under state ADU law
How a adu construction runs with us.
Lot and code check
We confirm your lot qualifies under state and local ADU rules before design.
Design and plan set
Complete plan set including site plan, elevations, and MEP.
Submittal and plan check
We handle corrections and coordinate with the city or county.
Build
Foundation to finish with one project lead and transparent weekly updates.
Final and certificate of occupancy
We schedule all inspections and hand off the certificate.
Why Southern California homeowners choose us for this work.
- We track SB County ADU ordinance updates so you do not have to
- We know which utility district requires a separate meter and which does not
- Heat-tolerant envelope design for detached ADUs without shade
Related services
Questions about adu construction.
From first meeting to move-in, most detached ADUs run 9 to 14 months. Garage conversions run 4 to 7 months.
Yes. California state law allows you to rent an ADU long term. Short term rules vary by city.
Detached new-build ADUs run 275 to 425 per square foot in our area. Garage conversions run 150 to 250k depending on condition.
Some cities require it, others do not. We confirm during the feasibility walk.
Ready to Start Your Remodel?
Tell us about your project and we will schedule a free in-home estimate. Transparent pricing, written scope, licensed crew.