Nashville ADU Permit Fees & Cost Calculator
Official Nashville guidance confirms DADUs are permitted in specific zoning/overlay situations and that a building permit is required, but the city page provided does not publish a clear ADU-specific fee schedule. Publicly available third-party estimates suggest permit-related costs are often in the low-thousands, but those figures must be verified against Metro Nashville permit records and any utility connection charges.
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 official source provided confirms permit requirements but does not publish exact ADU fees.
Third-party fee estimates are not authoritative and may bundle unrelated costs such as covenant recording or other pre-development items.
Actual charges may differ based on zoning district, overlays, plan review scope, inspections, and utility service requirements.
The request refers to detached accessory dwelling units in Metro Nashville-Davidson County.
No exact fee schedule was found in the provided official source, so only estimates from non-official sources are included where necessary.
Utility connection fees may vary by parcel and service conditions and should be verified separately.
FAQs
Are Nashville 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 Nashville?
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.