TN Building Standards2026 Residential Code

Tennessee Building Permit Costs, Exemptions & City Portals

Understand residential construction permit requirements in Tennessee under Tennessee State Building Code Standards (IRC 2018 Base). Calculate permit fee estimates for Nashville and surrounding counties, check shed and fence exemptions, and review mandatory inspection procedures.

Tennessee Statutory Ruling: Residential Permitting Standards & Exemptions

Tennessee Building Permit Standard: Under Tennessee State Building Code Standards (IRC 2018 Base), residential building permits are mandated for Room additions and second story additions, Detached Accessory Dwelling Units (DADU), Deck additions. Detached accessory storage sheds up to 200 sq ft and fences up to 6 ft are permit-exempt. Base municipal fees start at $75 plus plan check review fees.

Governing Code: Tennessee State Building Code Standards (IRC 2018 Base)Metro Jurisdiction: Metro Department of Codes and Building Safety (Metro Nashville)Last Verified: October 2026

Building Permit Cost & Requirement Estimator

Estimate municipal building permit fees, plan check review costs, and inspection requirements by project valuation.

Valuation includes labor and materials as required by municipal fee formulas.
Expected Permit Subcodes:
BuildingElectricalPlumbing

Estimated Municipal Permit Fees (Nashville, TN)

Building Construction Permit:$394
Plan Check Review Fee (50%):$197
Subtrade Surcharges (Elec/Plumb/Mech):$150
Total Estimated Permit Cost:$629 – $851
⏱ Typical Plan Review Turnaround: 10–18 business days
Local Jurisdiction Department:
Metro Department of Codes and Building Safety (Metro Nashville)
Open Official City Permit Portal →
State Building Standards Code: Tennessee State Building Code Standards (IRC 2018 Base). Detached one-story accessory tool sheds are permit-exempt up to 200 sq ft. Fences up to 6 feet tall are exempt from building permits.

Planning Construction Budgets in Nashville?

Compare full contractor labor and material cost benchmarks across kitchen, bathroom, ADU, and roof replacements.

Explore Metro Cost Guides →

Tennessee Building Code Exemption Guidelines

Detached Shed Exemption Cap
Up to 200 sq ft
One-story tool/storage shed without electrical or plumbing
Fence Height Exemption Cap
Up to 6 Feet Tall
Standard residential boundary privacy fences

Projects Strictly Requiring Building Permits in Tennessee

  • Room additions and second story additions
  • Detached Accessory Dwelling Units (DADU)
  • Deck additions
  • HVAC changeouts

Permit-Exempt Cosmetic Improvements in Tennessee

  • One-story tool sheds under 200 sq ft
  • Fences under 6 feet tall
  • Cosmetic painting and interior cabinet replacement in place

Penalties for Unpermitted Work in Tennessee

Metro Nashville assesses double permit fees and investigative inspection penalties.

Major Municipal Building Department (Nashville)

For properties located in or around Nashville, residential permits are processed through the Metro Department of Codes and Building Safety (Metro Nashville). Standard residential plan check reviews typically take 10–18 business days.

Access Nashville Online Permitting Portal →

Tennessee Building Permit FAQs

Do DADUs require special permits in Nashville, Tennessee?

Yes. Detached Accessory Dwelling Units in Davidson County must meet strict footprint ratios, architectural style matches, and separate utility metering permits.

Can homeowners pull permits in Tennessee?

Under Tennessee state law, homeowners can pull permits for work on their personal residence, provided they sign an owner-builder affidavit.

Compliance Notice: Building codes are adopted locally and may vary between incorporated cities and unincorporated county districts in Tennessee. Always verify specific setback and permitting requirements with your local jurisdiction before commencing construction.