San Bernardino ADU Permit Fees & Cost Calculator
San Bernardino’s official city ADU page confirms plan review is paid at submittal, permit fees are collected before issuance, and a school fee letter is required for structures 501 sq ft and larger. California law also requires proportionate treatment of impact fees for ADUs 750 sq ft or larger, and the city links to its current fee schedule, but the exact ADU fee amounts were not clearly extractable from the available official pages.
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
Do not assume the 2022 city impact-fee PDF is still fully current without checking the latest adopted schedule.
School fees and utility connection charges may vary by district and provider; the city source says the school district makes the determination.
The city and county may have different fee schedules depending on whether the property is inside city limits or in the unincorporated county.
The relevant permitting path may be the City of San Bernardino rather than San Bernardino County for parcels inside city limits.
The available official pages did not expose a fully readable current fee schedule, so exact dollar fees were not populated unless directly visible in source text.
California ADU fee treatment follows statewide baseline rules for ADUs, but local fee applicability still needs parcel-specific verification.
FAQs
Are San Bernardino 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 Bernardino?
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.