Get free adu construction quotes in San Jose
Free adu construction quotes in San Jose, California. Typical range $207,000 – $414,000.
Low
$207,000
Average
$310,500
High
$414,000
San Jose crews quote about $345 – $690 per square foot.
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What drives adu construction prices in San Jose
Local labor, permitting and climate move San Jose prices away from the national average.
Labor market
Silicon Valley labor is among the priciest in the country, with skilled trades in short supply.
Permits
San Jose requires permits for nearly all remodels; plan check can add 2-4 weeks.
Climate
Mild climate keeps material demands modest, but seismic detailing adds cost.
How to compare San Jose quotes
- Collect three written quotes. Anything under $155,250 usually has scope missing.
- Compare line items — materials, labor, permits, disposal — not just the total.
- Confirm license, insurance and workmanship warranty length before you sign.
- Ask what triggers a change order and how it gets priced.
San Jose questions
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