Nashville Zoning and Land Use: Rules, Maps, and Permit Requirements

Nashville's zoning and land use framework governs how every parcel of land within Metro Nashville–Davidson County can be developed, subdivided, or changed in use. The system operates under the authority of the Metropolitan Government of Nashville and Davidson County, with rules codified in the Metro Nashville Zoning Code and administered jointly by the Metro Planning Department and the Metro Nashville Codes Administration. Understanding this framework is essential for property owners, developers, and residents seeking permits, challenging land use decisions, or tracking neighborhood change.

• Definition and scope
• Core mechanics or structure
• Causal relationships or drivers
• Classification boundaries
• Tradeoffs and tensions
• Common misconceptions
• Checklist or steps (non-advisory)
• Reference table or matrix

Definition and scope

Zoning is a land-regulatory mechanism by which a government authority divides its jurisdiction into districts and assigns each district a set of permitted land uses, dimensional standards, and development rules. In Nashville, this authority flows from the Metropolitan Charter, which established the consolidated city-county government in 1963 and delegated land use regulation to the Metro Council acting on recommendations from the Nashville Metro Planning Commission.

The Metro Nashville Zoning Code — formally adopted as Title 17 of the Metro Code of Ordinances — applies to all unincorporated and incorporated portions of Davidson County that fall under Metro Government jurisdiction. Six municipalities within Davidson County (Belle Meade, Berry Hill, Forest Hills, Goodlettsville, Lakewood, and Oak Hill) maintain independent municipal governments and administer their own zoning codes separately. Land within those six municipal boundaries is not covered by Metro Nashville's zoning authority, and permit applicants in those areas must contact the relevant municipal office directly. The scope of this page covers only Metro Government jurisdiction.

The Planning Department maintains the official zoning GIS map, accessible through the Nashville Open Data Portal, which assigns every parcel in Metro's jurisdiction a base zoning district designation. That map is the authoritative reference for determining what is permitted on a given parcel before any application is filed.

Core mechanics or structure

Nashville's zoning system is structured around three functional layers: base districts, overlay districts, and special planning districts.

Base districts define the primary use category and dimensional envelope for each parcel. The Metro Nashville Zoning Code organizes base districts into residential, commercial, industrial, and mixed-use categories, each with subcategories (for example, RS5, RS10, R6, R8, RM2, RM20, MUL, MUG, MUI, CN, CL, CS, CA, CF, IWD, IR, IG, and others). The alphanumeric designators encode use type and density parameters. An RS5 district, for instance, permits single-family residential development on lots of at least 5,000 square feet, while an RM20 district permits multi-family residential at up to 20 units per acre.

Overlay districts layer additional requirements or permissions on top of the base district without replacing it. Nashville uses overlays for historic preservation (the Historic Preservation Overlay, or HP), urban design (Urban Zoning Overlay, or UZO), floodplain protection, and neighborhood conservation. A parcel subject to both an RS10 base district and an HP overlay must comply with both sets of rules simultaneously.

Special planning districts apply to areas governed by detailed specific plans or sectional planning area (SPA) documents that supersede standard base district rules for large-scale mixed developments or redevelopment zones.

Permits are administered through Nashville Building Permits via the Codes Administration, which checks every permit application against the applicable zoning classification before issuing any approval. Uses not permitted as-of-right require either a use and occupancy permit variance, a rezoning, or a special exception before construction can begin.

Causal relationships or drivers

Nashville's land use pressures are shaped by demographic and infrastructure dynamics. Davidson County's population grew from approximately 569,000 in 2000 to over 700,000 by 2020 (U.S. Census Bureau, Decennial Census), generating demand for residential density increases, commercial infill, and transit-oriented development that existing single-family base districts cannot accommodate without rezoning.

The relationship between zoning and housing cost is structural: when base districts restrict residential land to single-family uses at low densities, the supply of housing units per acre is capped at levels that cannot absorb population growth, which puts upward pressure on prices. Nashville's affordable housing policy debates are therefore downstream of zoning classification decisions made at the Metro Council level.

Infrastructure capacity — particularly water and sewer allocation managed by Metro Water Services — creates a secondary constraint. The Nashville Water Services department evaluates capacity for new connections during the development review process, and insufficient capacity in a given service area can block rezoning approval regardless of planning policy preferences. Similarly, Nashville Public Works assesses traffic impact for rezonings above certain thresholds.

Overlay districts in historic neighborhoods are driven by community preservation objectives codified through Metro's Historic Preservation Office and the Metro Historical Commission. Once an HP overlay is in place, exterior alterations to contributing structures require a Certificate of Appropriateness before a building permit can issue.

Classification boundaries

The Metro Nashville Zoning Code draws classification lines that determine which activities require permits, which are permitted by right, and which are prohibited. Key boundary thresholds include:

• Use classification: A use not listed as permitted or conditional in a district's use table is prohibited in that district.
• Dimensional nonconformity: A structure that predates a zoning change and no longer meets current setback, height, or lot coverage standards is legally nonconforming. Nonconforming structures may generally continue but cannot be expanded in ways that increase the nonconformity.
• Change of use: Changing from one use category to another (e.g., residential to commercial) triggers a new use and occupancy review even if no construction occurs.
• Subdivision threshold: Dividing a parcel into 2 or more lots requires a subdivision plat reviewed by the Planning Commission under the Metro Subdivision Regulations, a separate document from the Zoning Code.
• Accessory dwelling units (ADUs): Metro Council enacted ADU allowances that permit detached accessory dwelling units on owner-occupied lots in residential districts meeting minimum lot size requirements, subject to administrative approval rather than full rezoning.

The Nashville Metro Council is the legislative body with authority to amend base district boundaries and to adopt or modify overlay districts. The Planning Commission makes recommendations on rezonings, but final approval rests with the Council.

Tradeoffs and tensions

Zoning decisions involve inherent conflicts between competing public interests that cannot be fully resolved by technical analysis alone.

Density vs. neighborhood character: Increasing residential density in established single-family neighborhoods generates more housing supply but alters street-level scale, parking availability, and tree canopy. Nashville's Detached Accessory Dwelling Unit rules and proposals for missing-middle housing types sit at the center of this tension in multiple council districts.

Preservation overlays vs. housing production: Historic Preservation Overlays protect buildings of documented architectural significance, but they also limit the types of alterations permitted and can slow permitting timelines, increasing carrying costs for developers in affected neighborhoods.

By-right approval vs. community input: Permitting certain uses by right — without a public hearing — speeds development timelines and reduces uncertainty for investors, but removes the point at which neighbors and community organizations can formally weigh in on specific projects. Nashville's Urban Zoning Overlay was designed partly to introduce design standards without requiring case-by-case public hearings for every infill project.

Short-term rental regulation: The use classification of short-term rental (STR) properties intersects with residential zoning in ways that have generated sustained Metro Council debate. Owner-occupied STRs and non-owner-occupied STRs have been treated as distinct use categories with different permit requirements under Metro Code.

These tensions are managed — but not resolved — through the Nashville Metro Planning Commission review process and the Metro Council's legislative authority described in the Nashville Charter Government framework.

Common misconceptions

Misconception: A zoning map designation alone determines what can be built.
Correction: The base district designation establishes the envelope of permitted uses and dimensions, but overlay districts, specific plans, floodplain regulations, historic designations, and infrastructure capacity constraints all operate simultaneously. A parcel zoned MUL in a floodway overlay may have its developable area effectively reduced to zero despite the base district classification.

Misconception: A Metro Council rezoning approval means a building permit will be issued.
Correction: Rezoning changes the legal classification of land. It does not constitute a building permit, site plan approval, or subdivision plat. After a rezoning, the applicant must still complete the permitting process through Nashville Building Permits and satisfy all applicable code requirements.

Misconception: Variances and rezonings are the same process.
Correction: A rezoning (also called a zone change) permanently alters the zoning district classification of a parcel through Metro Council action. A variance is a relief from specific dimensional or development standards granted by the Metro Board of Zoning Appeals (BZA) without changing the underlying zoning district. The BZA cannot grant a use variance to permit a use that is prohibited in the district; only a rezoning can accomplish that.

Misconception: Nonconforming structures must be brought into compliance immediately.
Correction: Legally nonconforming structures may remain and continue their current use under Metro Nashville's nonconforming use provisions. They typically lose nonconforming status only if the nonconforming use is abandoned for a specified period (generally 12 consecutive months under Metro Code) or if the structure is substantially destroyed.

Checklist or steps

The following sequence describes the standard steps involved in a Nashville rezoning or special exception application, based on Metro Planning Department procedures.

1. Parcel research — Identify the parcel's current base district and overlay designations using the Metro Nashville GIS zoning map on the Nashville Open Data Portal.
2. Pre-application meeting — Schedule a pre-application conference with Metro Planning staff to review the proposed use, applicable district standards, and any known infrastructure constraints.
3. Application submission — Submit a complete rezoning petition or special exception application to Metro Planning, including site plan, ownership documentation, and applicable fees. Application deadlines follow the Planning Commission's published hearing calendar.
4. Staff review — Metro Planning staff prepares a written analysis evaluating the application against the General Plan (Nashville's long-range comprehensive plan), zoning code standards, and infrastructure capacity inputs from Metro Water Services, Public Works, and Nashville MTA.
5. Planning Commission hearing — The Metro Planning Commission holds a public hearing. Applicants, neighbors, and community members may present testimony. The Commission votes to recommend approval, approval with conditions, or denial to Metro Council.
6. Metro Council vote — For rezonings, the Metro Council holds up to 3 readings. A simple majority vote is required for passage. Council members representing the affected district have significant influence over outcome.
7. Post-approval permitting — Following Council approval, the rezoning ordinance is certified. The applicant then initiates the building permit or site plan approval process through Codes Administration separately.
8. Certificate of occupancy — Upon completion of construction and final inspection, Codes Administration issues a certificate of occupancy confirming the structure complies with applicable codes.

For permit questions not involving a rezoning, the process begins at step 7. The full guide to Nashville Metro departments involved in this workflow is accessible from the Nashville Metro Departments reference page.

Reference table or matrix

The Nashville Metro Planning Commission publishes its hearing schedules, staff reports, and agendas publicly. The Nashville Boards and Commissions page provides additional context on the BZA's composition and appointment process.

For a broader orientation to how zoning fits within the Metro Government's overall governance structure, the Nashville Metro Authority index provides access to the full reference framework covering Metro Government operations.

Scope and coverage limitations

This page covers zoning and land use rules as administered by the Metropolitan Government of Nashville and Davidson County. It does not apply to the 6 semi-autonomous municipalities within Davidson County (Belle Meade, Berry Hill, Forest Hills, Goodlettsville, Lakewood, and Oak Hill), each of which operates its own municipal zoning and permitting authority. It also does not cover adjacent counties (Williamson, Rutherford, Wilson, Sumner, Robertson, Dickson, Cheatham) that form the broader Nashville MSA but fall under separate county and municipal jurisdictions. State-level land use law applicable to all Tennessee jurisdictions — including the Tennessee Environmental Policy Act and state subdivision statutes under Tennessee Code Annotated Title 13 — is not administered by Metro Nashville and is beyond the scope of this page.

References

• Metro Nashville Planning Department
• Metro Nashville Codes Administration
• Metro Code of Ordinances, Title 17 (Zoning)
• Nashville Open Data Portal — Zoning GIS Map
• Metro Nashville Board of Zoning Appeals
• Metro Historical Commission
• U.S. Census Bureau — Davidson County Population Data
• Tennessee Code Annotated, Title 13 — Municipal Planning and Zoning (cite as TCA Title 13 via Tennessee General Assembly publications)
• Metropolitan Charter of Nashville and Davidson County