Nashville Building Permits: How to Apply, Fees, and Inspections

Nashville's Metro Codes Administration issues building permits for construction, renovation, demolition, and change-of-use projects within Davidson County's consolidated city-county jurisdiction. Obtaining the correct permit before breaking ground is a legal requirement, not a procedural formality — unpermitted work can result in stop-work orders, fines, and mandatory demolition of completed construction. This page explains what permits cover, how the application process works, what fees apply, and how inspections are sequenced.

Definition and Scope

A building permit is a formal authorization issued by Nashville Metro Codes Administration confirming that proposed construction plans comply with the adopted building code, zoning regulations, and applicable health and safety standards. Nashville operates under the 2018 International Building Code (IBC) and 2018 International Residential Code (IRC) as locally amended by Metro ordinance, administered through the Nashville Zoning and Land Use framework.

Scope and geographic coverage: Permit authority under Metro Codes Administration applies to all construction activity within Davidson County — the boundaries of the consolidated Metropolitan Government of Nashville and Davidson County. This coverage does not extend to the 6 smaller municipalities that maintain separate governmental identities within Davidson County's geographic footprint: Belle Meade, Berry Hill, Forest Hills, Goodlettsville (partially), Lakewood, and Oak Hill. Those municipalities operate independent codes offices and issue their own permits. The Metro permit process described on this page does not apply to those jurisdictions. Projects in unincorporated Tennessee counties adjacent to Davidson (Williamson, Rutherford, Wilson, Sumner, Cheatham) fall under their respective county or city codes offices, not Metro Nashville.

State-level regulatory oversight for licensed trades — electrical, plumbing, HVAC — is administered by the Tennessee Department of Commerce and Insurance, which sets licensing standards that apply across all local jurisdictions.

How It Works

The Metro Codes permit process follows a defined sequence regardless of project type.

  1. Pre-application review — Projects exceeding certain complexity thresholds require a pre-submittal meeting with Metro Codes staff. New commercial construction and projects involving structural changes typically qualify. Residential additions under 500 square feet may not require pre-review.
  2. Plan submittal — Applications are submitted through Nashville's online permitting portal, Nashville.gov/permits. Commercial projects require stamped architectural and engineering drawings. Residential projects may use contractor-prepared drawings for straightforward additions.
  3. Plan review — Metro Codes reviewers examine submitted documents against the adopted IBC/IRC and local amendments. Standard residential plan review targets a 5-business-day turnaround; commercial projects vary based on square footage and use classification.
  4. Permit issuance and fees — Once approved, fees are calculated and the permit is issued upon payment. Residential permit fees are generally calculated at a rate tied to project valuation; Metro Codes publishes its current fee schedule at the department's official site. Commercial permits use a combination of square footage, occupancy class, and valuation.
  5. Active inspections — The permit card (physical or electronic) must be accessible on-site throughout construction. Inspectors from Metro Codes conduct staged inspections at defined milestones.
  6. Certificate of Occupancy (CO) — Upon passing all final inspections, Metro Codes issues a CO or Certificate of Completion, authorizing lawful occupancy.

Permit applications that involve properties with recorded historic designations may require additional review through the Nashville Metro Planning Commission or the Metropolitan Historical Commission before codes approval proceeds.

Common Scenarios

Residential addition or remodel: A homeowner adding a 400-square-foot room addition requires a building permit, electrical permit (if wiring is added), and mechanical permit (if HVAC ductwork is extended). Three separate permits from Metro Codes — one per trade — are standard for this scenario.

New single-family construction: Full permit set includes building, electrical, plumbing, mechanical, and site grading permits. The builder of record must be a licensed Tennessee contractor for projects where the combined value exceeds $25,000 (Tennessee Code Annotated Title 62, Chapter 6).

Commercial tenant finish-out: A restaurant occupying previously shell retail space triggers a change-of-occupancy review. Fire suppression, accessibility compliance under the Americans with Disabilities Act (ADA), and kitchen exhaust requirements are all independently reviewed.

Demolition: Any structural demolition requires a separate demolition permit. Asbestos abatement documentation from the Tennessee Department of Environment and Conservation must be submitted prior to permit issuance for structures built before 1980.

Decks and accessory structures: Decks attached to a primary structure and accessory structures (sheds, garages) exceeding 200 square feet require permits. Detached sheds under 200 square feet are generally exempt, though setback and zoning rules from Nashville Zoning and Land Use still apply.

Decision Boundaries

Permit required vs. permit exempt: Metro Codes identifies specific exempt categories — cosmetic interior work (painting, flooring, cabinet replacement without structural change), like-for-like fixture replacement in plumbing and mechanical when no new branch lines are added, and fence installation below certain height thresholds. When the scope of work falls into a gray area, the Metro Codes public counter can issue a formal determination.

Residential vs. commercial classification: The IBC and IRC define the boundary. One- and two-family dwellings and townhouses under 3 stories use IRC. All other occupancies use IBC. This distinction matters because IBC projects require licensed design professionals (architects and engineers) on submitted documents; IRC projects may not.

Owner-builder permits: Tennessee allows property owners to pull their own building permit for their primary residence without holding a contractor's license, provided they perform the work themselves and do not sell the property within 12 months of CO issuance. This exemption does not extend to electrical, plumbing, or HVAC work, where licensed trade contractors are required regardless of ownership.

For a broader orientation to Nashville's governmental structure and how Metro departments interact with the permitting process, the Nashville Metro Authority index provides access to reference topics covering departments, budget, planning, and public services across the consolidated government.

References

Read Next

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