ADU Permit Fees & Costs in Nashville, Tennessee
Everything you need to apply for a adu permit in Nashville, Tennessee — documents, fees, steps, and a downloadable submission packet.
Key Facts
- Permit required
- Yes
- Submission method
- Online
- Typical fee range
- $4,800 – $18,150
- Review time
- Varies by jurisdiction
- Inspections
- 7 inspections required
Limited Data Available
Some information on this page has not been fully verified. We're working to improve data quality. Always verify with Nashville directly.
Estimated Total Fees
$4,800 – $18,150
Range based on typical residential solar PV system. Actual fees depend on project valuation and system size.
| Fee Component | Range | Confidence |
|---|---|---|
| ADU Permit Fee[1][2] Building permit fee based on construction valuation (approximately 0.75% of estimated cost). Plan review fees $350-$550. Inspection fees $100-$250 per inspection. DADU overlay fees may apply. Typical fees for 900 sq ft DADU: $4,500-$8,000. | $3,200 – $11,000 | ✓ |
| Plan Review Fee[3][4] Plan review fee is typically 50-65% of the permit fee. | $1,600 – $7,150 | ✓ |
| Estimated Total | $4,800 – $18,150 |
Fees shown as ranges. Always verify the exact amount with Nashville before submission. Additional fees may apply for expedited review or resubmittals.
Generate your permit packet
Get a personalized ADU permit packet for Nashville, Tennessee — tailored to your project details.
- Required forms: Building Permit Application, and more
- Pre-filled templates: Permit Cover Sheet
- Fee breakdown: $1,600–$11,000 estimated total
- Step-by-step Nashville Department of Codes and Building Safety portal submission guide
- Inspection prep checklist (7 items)
- Personalized for your specific project details
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Required Documents
Nashville requires the following documents for this permit application.
Building Permit Application
Completed Nashville building permit application with property owner and contractor information
Architectural Plans
Architectural drawings signed by licensed Tennessee architect showing floor plans, elevations, sections, and construction details
Site Plan
Site plan showing lot boundaries, setbacks, primary and accessory structures, parking, utilities, drainage, and easements
DADU Compliance Checklist
Nashville DADU (Detached Accessory Dwelling Unit) ordinance compliance checklist confirming all requirements are met
Utility Connection Plans
Plans showing water supply, sewer, electric, and gas connections with coordination letters from utilities
Property Owner Affidavit
Affidavit certifying property ownership and consent for ADU construction
Permit Process
Follow these steps to submit your permit application through Nashville Department of Codes and Building Safety.
- 1
Pre-Application Consultation
Meet with Nashville Codes staff to discuss DADU ordinance, lot eligibility, design requirements, and process timeline
You'll need: Property Owner Affidavit
- 2
DADU Ordinance Verification
Verify property meets DADU overlay requirements, zoning allowances, lot size, and overlay district boundaries
You'll need: DADU Compliance Checklist
- 3
Submit Building Permit Plans
Submit complete permit application with architectural plans, site plan, utility coordination, and DADU checklist
You'll need: Building Permit Application, Architectural Plans, Site Plan, Utility Connection Plans
- 4
Plan Review
Codes and building staff review plans for compliance with DADU ordinance, building code, electrical code, plumbing code, and fire code
- 5
Address Review Comments
Submit revised plans and supporting documents addressing any code violations or modifications required
- 6
Pay Fees and Receive Permit
Pay permit issuance fees, plan review fees, and inspection fees. Receive building permit
- 7
Construction Inspections
Schedule and pass required inspections: foundation, framing, electrical, plumbing, mechanical, and final occupancy
Authority Sources
Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.
Nashville Department of Codes and Building Safety
Last verified: February 15, 2026
1 source referenced
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Frequently Asked Questions
- Do I need a adu permit in Nashville?
- Yes. Nashville requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
- How long does adu permit approval take in Nashville?
- Processing times in Nashville vary depending on project complexity and current review volume. The process involves 7 steps. Contact Nashville Development Services for current timelines.
- What documents are required for a adu permit in Nashville?
- Nashville requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, DADU Compliance Checklist, and others. See the full list above for details.
- What happens if I build without a adu permit in Nashville?
- Building without a permit in Nashville can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
- Can PermitMagic help prepare my adu permit submission in Nashville?
- Yes. PermitMagic generates a submission-ready packet tailored to Nashville's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
- How much does a adu permit cost in Nashville?
- ADU permit fees in Nashville typically range from $4,800 to $18,150, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Nashville.
Related Permits
Other permits in Nashville
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