San Jose ADU Permit Fees & Cost Calculator
San Jose uses the City building fee schedule and an ADU fee estimator for permitting costs, while California law limits local ADU impact fees for units under 750 square feet. The city’s public ADU pages confirm permit-fee variability by size, but the exact fee schedule was not captured here and should be verified in the City’s current building fee schedule and estimator.
Free ADU fee calculator
Estimate local ADU fees
Step 1 of 5: Location
The calculator uses staged city data from the ADUFee database with visible confidence levels and dated source tracking.
Fee overview
Exact current San Jose fee amounts were not available in the captured official source text, so numeric fees are intentionally left null.
Some non-official sources mention fee ranges and waivers, but those claims should be verified against the City fee schedule before use.
Utility, school, and special district charges may vary by parcel and service territory and are often not fully captured in city ADU FAQs.
The requested fee data is for a standard ADU in San Jose, not a JADU, conversion-only project, or a project with unusual utility or fire-suppression requirements.
The City of San José fee estimator and building fee schedule are the most authoritative public sources for current permit-related charges.
California statewide ADU fee-limitation rules apply in San Jose, but project-specific local implementation must still be verified.
FAQs
Are San Jose ADU fee estimates official?
No. ADUFee.com provides planning estimates only. Final fees are set by the city, utility providers, school district, and other agencies.
What sources are used for San Jose?
The database stores city, state, utility, school, county, and other source links where available. Each estimate should still be verified locally.
Can ADU fees vary within California?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.