ADU

Modern two-story home and detached ADU at sunset with glowing lights, designed by a Bay Area ADU contractor

Modern backyard ADU with patio seating and glowing lights at dusk by a Bay Area ADU contractor

Modern two-story Bay Area home with matching detached ADU at sunset, built by a Bay Area ADU contractor

Backyard ADUs

At Subia Construction, we take pride in building high-quality ADUs that blend seamlessly with your property, whether it’s a modern backyard unit, a garage conversion, or a multi-use space for extended family. As a Bay Area ADU contractor, every ADU we build is crafted with precision, comfort, and long-term value in mind. Serving homeowners across the Bay Area with thoughtful design and dependable results.

As a trusted Bay Area ADU contractor, we encourage you to review California’s official ADU guidelines to understand what’s allowed on your property before starting your project.

Featured ADU Projects

Detached ADUs
Private, stylish backyard homes built with comfort and efficiency in mind.

Garage Conversions
Smart transformations that turn underused space into livable square footage.

Multi-Use ADUs
Guest suites, home offices, or rentals that adapt to your lifestyle.

Aging-in-Place Solutions
Safe, code-compliant designs for long-term independent living.

Full Utility Integration
All plumbing, electrical, HVAC, and finishes managed start to finish.

We handle kitchens, baths, and finishes inside your unit, see our approach to bathroom remodeling for a deeper look at quality.

Why Choose Subia as Your Bay Area ADU Contractor?

Expert Planning
We walk you through permits, setbacks, and smart layout choices.

Clear Pricing
No guessing. Transparent quotes with real costs, no hidden surprises.

Local Crews
Trusted Bay Area subcontractors managed personally by Joey.

Start-to-Finish Oversight
As your trusted Bay Area ADU contractor, we’re hands-on from demo to final inspection.

Want to know who you’re hiring? Learn more about Subia Construction and why Bay Area families trust us for ADU projects that last.

Let’s Build Your ADU Right the First Time

As a Bay Area ADU contractor, we know the ins and outs of local building codes, timelines, and what it takes to deliver a smooth experience. Whether you’re building for family, income, or lifestyle flexibility, Subia makes it simple.

Contact us today

Client Feedback

Clients appreciate the honest, hands-on approach Joey brings to every job.

Punit Sarna

Client

Joey and his team are fantastic! I have had them for 4 different projects for me, and each fabrication/installation was perfect. They are easy to work with, detail oriented and competitive on pricing. Be sure to give them a call for your project!

Patrick C.

Client

Last night, I looked out the window and found Joey still working on our project at 10pm. By the end of today, it was all done, sparkling and new. I've never, ever seen such work ethic and quality in a contractor.

Stephanie G.

Client

Joey was great to work with. He worked fast, was very communicative, has a lot of experience, uses quality products and all of it for a good price. We’re very happy with joey and his crew's work.

Upeka B.

Client

Joey and his crew are very professional and do great work. Our new counters are beautiful, and he got it done fast even with other constraints on our side. I would work with them again!