ADUFee.com
Last reviewed 2026-05-31Medium confidence

Davenport ADU Permit Fees & Cost Calculator

Davenport appears to require standard building and trade permits for ADU-related work, but the exact ADU-specific fee package is not clearly published in the search results. The clearest directly stated local fee found is a $100 sewer connection fee for one-family or two-family residences; other permit fees need verification from the city fee schedule and permit staff.

ADUFee.com is not affiliated with Davenport. Estimates are informational and should be verified with the city, utility providers, and qualified professionals.

Free ADU fee calculator

Estimate local ADU fees

Low confidence

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 exact ADU fee total cannot be confirmed from the provided results alone.

The sewer fee applies to one-family or two-family residences; whether a specific ADU project is billed this way must be verified with the city.

If the project involves floodplain, zoning, or land disturbance over one acre, additional requirements may apply and could affect costs.

An ADU in Davenport may trigger building, plumbing, electrical, mechanical, and possibly sewer connection costs depending on project scope.

The city fee schedule PDF likely contains additional fees, but they were not legible in the provided search results.

This request is for Davenport, Iowa, not Davenport, Washington or another city with the same name.

FAQs

Are Davenport 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 Davenport?

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 Iowa?

Yes. Permit, utility, school, inspection, and impact fees can vary by jurisdiction, parcel, project size, utility provider, and local interpretation.