Nashville Floodplain Maps & Development Rules
Overview
Nashville, Tennessee regulates development in mapped floodplains to reduce risk and comply with the National Flood Insurance Program. This guide explains where to find official floodplain maps, which municipal rules apply, how permits and inspections work, and what to do if you need a variance or must report a violation. It is aimed at property owners, builders, engineers, and permit applicants working in Davidson County.
Maps & Flood Zones
Use the official FEMA flood maps to locate the Special Flood Hazard Area (SFHA) for a property and confirm with Metro staff before permitting decisions; the FEMA Map Service Center is the authoritative national map viewer for flood zones.[3]
Development Rules & Permits
Metro Nashville administers floodplain development requirements through Metro departments and the local municipal code; applicants should consult Metro Water Services and the Metro Code for specific regulatory language and submittal instructions.[1][2]
- Floodplain development permit required for new construction, substantial improvement, and certain grading or filling in mapped floodplains.
- Elevation certificates and floodproofing documentation are commonly required to confirm finished floor elevations and mitigation.
- Permit fees may apply; see Metro permit center materials for current fee schedules.
- Inspections and final compliance certifications are required before occupancy where floodplain work has been permitted.
- Timeframes for review and permit validity vary by project type and are established by Metro permit procedures.
Penalties & Enforcement
Enforcement of floodplain rules is carried out by Metro departments designated in the municipal code and by Metro Water Services; specific penalties or fines for violations are not specified on the cited municipal pages and should be confirmed with Metro enforcement staff.[2]
- Monetary fines: not specified on the cited page.
- Escalation: first, repeat, and continuing offence treatment not specified on the cited page.
- Non-monetary sanctions: stop-work orders, orders to remove or remediate unpermitted work, and court actions are enforcement tools described in municipal practice even when specific amounts are not listed.
- Enforcer and complaint pathway: contact Metro Water Services Floodplain Management or Metro Codes/Inspections to report violations or request inspections.[1]
- Appeals and review: the code provides administrative routes; exact appeal deadlines and bodies (e.g., boards or courts) are not specified on the cited page and should be confirmed with Metro.
Applications & Forms
- Floodplain development permit: application materials and submittal instructions are published by Metro Water Services or the Permit Center; specific application form name/number not specified on the cited page.[1]
- FEMA Elevation Certificate: used to document finished floor elevation; form and guidance available from FEMA.[3]
- Fees and payment method: not specified on the cited Metro pages; consult the Metro Permit Center for current fees.
Common violations include building without a floodplain permit, failing to submit required elevation certificates, and altering floodplain conveyance or fill without approval. Typical outcomes range from stop-work orders to removal orders and potential fines; exact penalties are referenced in Metro enforcement procedures or the municipal code where published.[2]
Action Steps
- Before purchase or building, verify flood zone via FEMA maps and contact Metro floodplain staff for local confirmation.[3]
- If work is in a mapped floodplain, apply for the floodplain development permit and submit required elevation documentation.
- Schedule required inspections and obtain a certificate of compliance before occupancy.
FAQ
- How do I find out if my property is in a floodplain?
- Search the FEMA Map Service Center for your address and confirm with Metro Water Services Floodplain Management for local determinations.[3]
- Do I need a permit to build in a floodplain?
- Yes. Most new construction, substantial improvements, and certain grading or fill in mapped floodplains require a floodplain development permit from Metro; consult Metro Water Services and the municipal code for details.[1][2]
- What happens if I build without a permit?
- Enforcement may include stop-work orders, orders to remove unpermitted work, and possible fines; specific fine amounts are not specified on the cited municipal pages and should be confirmed with Metro enforcement staff.[2]
How-To
- Locate the property on the FEMA Map Service Center and note the flood zone designation.
- Contact Metro Water Services Floodplain Management to verify local floodplain mapping and coordinate pre-application review.[1]
- Prepare required documents: site plan, floodproofing or elevation certificate, and application forms.
- Submit the floodplain development permit application to the Metro Permit Center and pay applicable fees.
- Complete inspections and obtain final compliance/certificate of occupancy before using the structure.
Key Takeaways
- Always verify FEMA mapping and confirm with Metro before permitting.
- Floodplain permits and elevation documentation are commonly required for new or substantially improved buildings in mapped zones.
- Contact Metro Water Services or Metro Codes early to avoid enforcement risks and delays.
Help and Support / Resources
- Metro Water Services - Floodplain Management
- Metro Nashville Code of Ordinances - Municode
- FEMA Map Service Center
- Metro Codes and Building - Permit Center