Saint Petersburg ADU Permit Fees & Cost Calculator
City guidance confirms ADUs are allowed in some zoning districts and that an 800-square-foot ADU with one bathroom is approximately $1,020 in city-related permit and impact fees, but the city page does not publish a full fee schedule, so some components should be verified during permit intake.
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
The city page provides an example fee total for a specific 800-square-foot ADU with one bathroom; actual fees may differ by unit size, plumbing fixtures, credits, and review conditions.
The official city page does not publish a complete fee schedule in the provided results, so additional permit, plan review, utility, or inspection charges may apply and should be verified with the city.
Some non-official search results mention higher or broader pre-construction costs, but those are not used here because they are not official fee schedules.
The user wants city-level permit and pre-development fee data, not full construction cost estimates.
Only fees explicitly stated on the official city ADU page are included as numeric amounts.
No separate school district fee was identified from official county or school sources in the provided results.
FAQs
Are Saint Petersburg 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 Saint Petersburg?
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 Florida?
Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.