ADU Builders Bay Area
ADU Builders Bay Area is a San Jose builder focused on accessory dwelling units. Its team handles ADU design, plans, permit applications and construction. Projects include detached and attached units, garage conversions and backyard cottages; a customer also describes an engineered split-level studio on a steep site.
Business Highlights
- The company says it is licensed and insured.
Service Area
San Jose and Bay Area communities including Santa Clara, Sunnyvale, Milpitas, Cupertino and Palo Alto.
Featured on ProsGrade. ADU Builders Bay Area is one of 7 home builders ProsGrade lists in San Jose, California.
6 services listed, including Detached ADUs, Attached ADUs and Garage conversions. Open 7 days a week. Rated 5.0 from 134 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How ADU Builders Bay Area compares with the other 6 home builders on ProsGrade in San Jose, using public Google ratings and review counts.
- Ranks in the top quarter of the 7 San Jose home builders on ProsGrade by Google rating and review volume.
- Rated 5.0 on Google, at or above the 4.9 average of other San Jose home builders on ProsGrade.
- Has the most Google reviews (134) of the 7 San Jose home builders on ProsGrade.
- One of 5 San Jose home builders on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
6 services- Detached ADUsSeparate backyard living units
- Attached ADUsNew living space connected to the main home
- Garage conversionsExisting garages converted into living units
- Backyard cottages and in-law suitesSmall residential units for guests or family
- ADU design and permittingArchitectural plans, engineering calculations and permit application assistance
- ADU constructionFoundation, utilities, roofing, interiors and finishes as specified in the project agreement
Reviews
What customers say
Customers value regular progress updates and guidance with design and permits. One homeowner credits the team with devising a split-level plan for a challenging hillside site.
Customer Reviews
Aaron Baker
Anne
Write a Review
Share your experience with this business. Reviews are moderated before they appear publicly.
Frequently Asked Questions
What happens before ADU construction begins?
The process starts with a consultation and detailed estimate, followed by a contract, finalized design and permit plans.
Can the company help with permit applications?
Its design-build package includes architectural plans, engineering calculations and permit application assistance.
Are in-person meetings available?
The company offers in-house or online consultations.
Can an existing garage become an ADU?
Garage conversion is one of its offered project types.








