Garage Conversion ADU in San Jose, CA
Converting an existing garage into a living unit is typically the fastest, most cost-effective way to add an ADU — you're building within a structure that already exists, so there's no new foundation footprint to fight for.
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Garage Conversion ADU in San Jose
Garage conversion ADUs in San Jose generally qualify for ministerial (staff-level) approval under state and local ADU law, with a typical review timeline of around 60 days — no discretionary hearing required in most cases. Construction cost typically runs $80,000–$150,000, covering new insulation, plumbing, electrical, HVAC, and finishes, plus a compliant exit and, if needed, replacement parking.
We start with a structural assessment of your garage — foundation condition, ceiling height, and existing utility runs — then design a layout that makes the most of the space: studio or one-bedroom configurations are most common. We handle plan preparation, San Jose permit submittal, and construction from demo through final inspection.
If your garage is attached to the house, we can also evaluate whether a shared-wall JADU conversion makes more sense than a fully independent garage ADU, depending on your goals and budget.
Do I lose my parking if I convert my garage to an ADU?
Not always — San Jose's ADU ordinance often waives replacement parking requirements for garage conversions, especially near transit. We'll confirm exactly what applies to your address during a free consultation.
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Design, San Jose permitting, and construction handled in-house
Free, no-obligation on-site consultation
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Ready to add an ADU, garage conversion, or in-law suite? Text us for a free, no-obligation consultation and estimate anywhere in San Jose & Santa Clara County.
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