San Diego ADU Permit Fees & Cost Calculator
San Diego ADU fees typically include permit/plan-check charges, utility connection charges, and possibly school fees for larger units. California SB 13 also requires ADU impact-fee waivers for many smaller ADUs, and San Diego County notes its ADU fee waiver program ended for new qualifying projects after January 9, 2024.[1][9]
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
Several fee figures in the available results come from secondary sources and should be verified against current official San Diego city, county, school district, and utility schedules before use.
County fee figures may not apply inside the City of San Diego jurisdiction.
Exact ADU fees can vary by unit size, whether the project is a conversion or new construction, utility service changes, and whether state/local fee waivers apply.
This request refers to the City of San Diego, not unincorporated San Diego County.
The most useful current fee data may require checking separate city, county, school district, and utility fee schedules.
Where official city schedules were not directly available in the provided results, secondary-source estimates were used only as placeholders and left uncommitted numerically.
FAQs
Are San Diego 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 Diego?
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.