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

Knoxville ADU Permit Fees & Cost Calculator

Knoxville appears to allow ADUs, but the public results provided do not include an official City fee schedule for ADU-specific permits, plan review, or utility connection charges. The safest current read is that permit-related costs exist and utility connection fees may apply, but exact ADU fees should be verified directly with the City of Knoxville Plans Review & Permits office and Knoxville Utilities Board.

ADUFee.com is not affiliated with Knoxville. 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 provided search results do not include an official Knoxville ADU fee schedule, so exact permit, plan review, impact, school, or utility charges could not be verified.

Secondary sources mention ranges and utility fees, but those numbers should not be treated as official without confirmation from the city or utility provider.

This response treats the query as Knoxville city ADU fees rather than Knox County fees.

No exact fee amounts are included unless supported by official fee documentation, which was not present in the provided results.

Knoxville fee estimates should be verified against the current city, utility, and school district fee schedules before filing.

This page uses the latest staged fee research from the ADUFee database.

FAQs

Are Knoxville 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 Knoxville?

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 Tennessee?

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