Nashville, Tennessee Building Permits
Learn Nashville, Tennessee building permit rules, fees, timelines, codes, zoning, inspections, and plan requirements for projects in Davidson County.
Wind
ASCE 7 basic wind speed is typically about 115 mph ultimate 3-second gust for Risk Category II buildings in the Nashville area; final design speed should be verified by site, risk category, exposure, and the adopted ASCE 7 edition.
Snow Load
Ground snow load is low compared with northern states; Nashville-area designs commonly use approximately 10 psf ground snow load, with roof design adjusted for exposure, thermal condition, importance factor, and drifting where applicable.
Flood
Nashville has mapped FEMA flood hazard areas along the Cumberland River, Mill Creek, Whites Creek, Browns Creek, Richland Creek, and other tributaries. Work in Special Flood Hazard Areas generally requires floodplain review, elevation certificates, lowest-floor/freeboard compliance, and restrictions on substantial improvement or substantial damage projects.
Earthquake
Nashville is in a moderate seismic region; many projects fall into Seismic Design Category B or C depending on soil class, occupancy, and adopted seismic maps. Commercial and engineered buildings should verify site-specific seismic parameters.
Wildfire
Nashville does not generally have a citywide wildland-urban interface code requirement, but wooded lots, steep sites, and outlying areas may require defensible access, driveway clearance, address visibility, and fire department access compliance. Local fire review may apply to larger developments.
Building Department
Metropolitan Government of Nashville and Davidson County Department of Codes and Building Safety
Approval Timeline
Simple residential trade permits can often be issued the same day or within 1-3 business days if the contractor is properly licensed and no plan review is needed. Residential additions, detached garages, decks, and new single-family homes commonly take about 1-3 weeks for initial review, depending on zoning, stormwater, and historic-overlay issues. Commercial tenant improvements and new commercial buildings often take 2-6 weeks or longer, especially if fire review, accessibility review, stormwater review, or multiple correction cycles are required.
Common Requirements
Typical submittals include a completed permit application, owner and contractor information, construction valuation, site plan or survey, zoning calculations, floor plans, elevations, wall sections, structural details, energy-code documentation, and trade permit information for electrical, mechanical, plumbing, and gas work. Commercial projects usually require code summary sheets, life-safety plans, accessibility details, fire-rated assemblies, occupant load calculations, plumbing fixture counts, and stamped drawings. Projects affecting drainage may need grading, erosion-control, stormwater, or tree-related documentation. Historic overlay properties may require approval from the Metro Historic Zoning Commission before a building permit is issued.
Zoning Information
Nashville uses the Metro Zoning Code for all of Davidson County. Parcels are regulated by base zoning districts such as residential, office, commercial, mixed-use, industrial, and specific plan districts, with additional controls from overlays, historic zoning, contextual overlays, urban design overlays, planned unit developments, and neighborhood conservation rules. Zoning review is often the first step in permitting and checks use, setbacks, height, lot coverage, parking, landscaping, and other site standards.
Permit Costs
Nashville permit fees are generally based on project type, construction valuation, and required plan reviews or inspections. Small residential trade permits may be under a few hundred dollars, while additions, accessory structures, and remodels commonly run several hundred dollars to over $1,000. New homes and larger commercial projects can cost several thousand dollars once building, trade, plan review, stormwater, fire, and impact-related fees are included. Applicants should confirm the current Metro fee schedule before budgeting.
Engineering Requirements
A Tennessee-licensed design professional is typically required for commercial buildings, multifamily work, structural alterations, non-prescriptive residential construction, retaining walls, unusual foundations, major beams or load-bearing changes, steel or engineered wood framing not covered by prescriptive tables, and projects in flood hazard areas. Truss layouts and engineered components must usually be supplied by the manufacturer or engineer. Nashville reviewers may request sealed calculations when a design does not clearly comply with the adopted building code.
Local Code Adoption
Metro Nashville generally enforces locally adopted International Codes with Metro amendments, commonly including the 2018 International Building Code, 2018 International Residential Code, 2018 International Existing Building Code, mechanical, plumbing, fuel gas, energy conservation codes, and the locally adopted National Electrical Code. Applicants should verify the current code cycle and amendments with Metro Codes before design.
Typical Projects
Common Nashville permit projects include single-family infill homes, residential additions, detached garages and DADUs, deck and porch rebuilds, interior remodels, short-term rental upgrades, restaurant and retail tenant build-outs, mixed-use developments, multifamily renovations, storm-damage repairs, and commercial change-of-use projects.