ADU Contractor in Cupertino, CA
Detached ADUs, garage conversions, attached additions, and JADUs -- full design-build in Cupertino and surrounding Santa Clara County.
ADU Contractor in Cupertino, CA
Cupertino's established neighborhoods are well suited to garage conversions and detached ADUs alike. We manage the design, engineering, and permitting process with the City of Cupertino so your project stays on schedule.
Services Available in Cupertino
Why Cupertino Homeowners Choose Us
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Detached ADUs, garage conversions, attached additions, and JADUs -- full design-build for Cupertino homeowners and Santa Clara County properties
Detached ADU Construction
Standalone backyard ADU, full design-build from foundation to finish.
Garage Conversion ADU
Convert your existing garage into a legal, permitted living unit.
Attached ADU Addition
ADU built onto your existing home, ideal for tighter lots.
Junior ADU / JADU
Up to 500 sq ft within your home's existing footprint.
ADU Design & Planning
Architectural design, site planning, and Title 24 compliance.
ADU Permits & Approvals
City/county permit expediting for Los Gatos and Santa Clara County.
Multi-Unit & Multifamily ADUs
Multiple ADUs per lot, including SB-9 lot-split projects.
Custom ADU Build-Out
Custom kitchens, baths, finishes, and aging-in-place features.
How Your ADU Project Works in Cupertino
One team, from your first consultation through final inspection.
Free Site Consultation
We walk your Cupertino property, review setbacks and lot coverage, and discuss your goals and budget. No cost, no obligation.
Design & Permits
Our team handles architecture, engineering, Title 24 compliance, and the full permit submission with the City of Cupertino.
Construction & Handoff
Foundation through final finishes, with regular updates from a dedicated project manager, then a final walkthrough and warranty documentation for your Cupertino project.
ADU Service Area Near Cupertino, CA
ADU Contractor Los Gatos covers Cupertino, CA and the surrounding Santa Clara County area
ADU Service Area
Real, licensed ADU construction across Los Gatos and every neighboring South Bay city — real municipal boundaries, not a schematic.
Areas We Serve
Don't see your city listed? We likely still cover it — reach out and ask.
Materials We Build With
Every ADU is built with trusted, warrantied materials from established manufacturers
We work with manufacturer-certified materials and pass along full manufacturer warranties.
Why Cupertino Homeowners Choose Us
A dedicated ADU contractor, not a general remodeler taking on a side project
Licensed & Insured
Fully licensed California general contractor, bonded and insured, specializing in ADU design-build projects.
Design-Build Under One Roof
Architecture, engineering, permitting, and construction from a single accountable team -- no hand-offs, no finger-pointing.
Cupertino Established-Neighborhood Fit
We match garage conversions and detached ADUs to Cupertino's established architectural character while managing City permitting end to end.
Frequently Asked Questions -- Cupertino, CA
Common questions about ADU construction in Cupertino, CA
Will my Cupertino ADU match my home's existing style?
Yes -- we design garage conversions and detached ADUs to complement your home's existing architecture, which helps with both City review and neighborhood fit in Cupertino's established subdivisions.
How much does an ADU cost in Cupertino?
Detached ADUs in Cupertino typically run $260,000-$460,000+, with garage conversions often 20-35% less. We provide a free, itemized estimate specific to your lot and finish level.
Do you manage the City of Cupertino permit process?
Yes -- we prepare and submit the complete application to the City of Cupertino, handle plan-check responses, and schedule inspections through final sign-off.
Can I convert my Cupertino garage into an ADU?
In most cases yes, provided ceiling height and structural condition meet code. We do a free feasibility check on your specific garage before you commit to a design.
ADU Services & Service Areas Near Cupertino, CA
Full design-build ADU services across Cupertino and Santa Clara County.
ADU Services
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