ADU Builder in San Jose
San Jose is the largest ADU market in Santa Clara County, with every ADU type well represented across its many neighborhoods.
From Willow Glen bungalows and Almaden Valley hillside lots to Evergreen and the growing North San Jose corridor, San Jose has the widest range of ADU opportunities in the county — bigger lots for detached construction in some neighborhoods, tighter urban lots better suited to garage conversions and JADUs in others. We build every ADU type across San Jose and manage the city's permitting process for each project type.
Local Landmarks We Serve Near
Services Available in San Jose
Detached ADU / Backyard Home Construction
From $180,000
Garage Conversion ADU
From $95,000
Junior ADU (JADU) Conversion
From $65,000
Attached ADU Home Addition
From $150,000
Prefab / Modular ADU Installation
From $120,000
ADU Design & Architectural Plans
From $8,500
ADU Permitting & Palo Alto City Approvals
From $4,500
ADU Foundation & Site Work
From $25,000
ADU Interior Finishing & Final Build-out
From $35,000
How Our ADU Design-Build Process Works
Get your Palo Alto ADU designed, permitted, and built in 3 straightforward phases
Request a Free Estimate
Text us or fill out the contact form. Describe your lot and goals and receive a free, no-obligation consultation.
Text us for a quoteWe Clean Your Property
Our professional team arrives on time with commercial-grade equipment. We treat every property with care.
Enjoy the Results
Walk through the results with us. We guarantee your satisfaction. Pay only after you approve the work.
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Full coverage protection
Satisfaction Guaranteed
100% money-back guarantee
Eco-Friendly
Safe cleaning solutions
Free Estimates
No obligation quotes
Recent ADU Builds in Palo Alto
A look at real projects from our Palo Alto crew — detached backyard homes, garage conversions, and interior finish work across Silicon Valley.
Service Areas
ADU design-build across Palo Alto and 13 Silicon Valley communities
ADU Construction Service Area
Real, professional ADU design-build across Palo Alto and every neighboring South Bay city — real municipal boundaries, not a schematic.
Cities We Serve
Don't see your city listed? We likely still cover it — reach out and ask.
Frequently Asked Questions
Have a question we didn't answer? Text us and we'll get right back to you.
How much does it cost to build an ADU in Palo Alto?
A detached ADU in Palo Alto typically runs $180,000 to $400,000+ depending on size and finish level. Garage conversions and JADUs cost less, usually starting around $65,000 to $95,000. We give a firm, itemized quote after a site visit — text us for a free consultation.
How long does ADU permitting take in Palo Alto?
California law requires cities to approve or deny complete ADU applications within 60 days. In practice, well-prepared applications in Palo Alto typically move through in 2 to 4 months including plan-check correction rounds. We prepare and manage the full permit package.
What types of ADUs do you build?
We build detached backyard ADUs, garage conversion ADUs, Junior ADUs (JADUs), attached ADU additions, and prefab/modular ADU installations, plus offer standalone architectural design and permitting services.
Can I rent out my ADU?
Yes. Under California and Palo Alto ADU rules a completed ADU can generally be rented long-term. Short-term rental rules vary by city — we can walk you through the current local restrictions for your property.
What areas around Palo Alto do you serve?
We serve Palo Alto and the wider Peninsula and South Bay including Mountain View, Los Altos, Sunnyvale, Cupertino, Santa Clara, San Jose, Saratoga, Campbell, Los Gatos, Milpitas, Morgan Hill, and Gilroy.
Do you handle design, permitting, and construction all in one contract?
Yes. We work as your general contractor for the full design-build process — architectural plans, structural engineering, City of Palo Alto permitting, and construction through final inspection — one team, one point of contact.
Get Your Free Estimate
Ready to build your ADU? Contact us today for a free, no-obligation consultation. We respond to all inquiries within 1 hour.