Chattanooga ADU Permit Fees & Cost Calculator
Chattanooga allows ADUs on qualifying single-family lots, but the exact city fee schedule for ADU permits and related pre-development charges was not clearly published in the sources reviewed. A secondary source reports an estimated total permit-fee range of $1,200–$5,500, but this should be verified directly with Chattanooga Development Resources before use.
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 only numeric fee found was from a secondary source, not an official Chattanooga fee schedule.
Do not treat the $1,200–$5,500 figure as authoritative without confirmation from Chattanooga Development Resources.
If the parcel is in a special district, HOA, or historic area, additional review or fees may apply.
Chattanooga ADU costs are being interpreted as city permit and pre-development fees only, not total construction cost.
No separate school district impact fee was identified in the reviewed sources.
The city may have additional fees or utility charges not visible in the materials reviewed here.
FAQs
Are Chattanooga 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 Chattanooga?
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.