Environmental Rules in Franklin, TN (2026)
4 verified environmental rules for Franklin, Tennessee, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Franklin requires new development to size stormwater systems to specific storm-return standards: catch basins for the 10-year storm, bridges and culverts for the 50-year storm, and emergency bypass for a 100-year flood.
Franklin Stormwater Management Rules
Some RestrictionsFranklin Municipal Code, title 23, ch. 1, § 23-106(2)(e)
New development shall meet a stormwater quantity level of service defined by:(i)Designing road catch basins and connecting culverts to convey the ten-year design-storm runoff. No portion of the storm pipe network shall be surcharged above the interior crown elevation.(ii)Designing bridges, culverts, channels, and cross-drains to pass the 50-year design-storm runoff. No portion of the storm pipe...
Erosion Control
Every construction site in Franklin, regardless of size, must have erosion prevention and sediment control (EPSC) measures installed and operating before work begins, under the city's stormwater management ordinance.
Franklin Erosion & Sediment Control
Some RestrictionsFranklin Municipal Code, title 23, ch. 1, § 23-106(2)(g)
All construction sites regardless of size or disturbed area shall follow proper EPSC practices to control unwarranted sediment from leaving a site. All construction sites receiving grading or stormwater permits from the City of Franklin shall be subject to the requirements outlined in the State of Tennessee's Construction General Permit, EPSC Handbook, the city stormwater BMP Manual, and this t...
Flood Zones
Franklin requires a floodplain development permit before any construction, fill, or land disturbance in a FEMA-mapped special flood hazard area.
Franklin Floodplain Development Permit
Some RestrictionsFranklin Zoning Ordinance § 17.6.2(B)-(C) (effective January 13, 2026)
A floodplain development permit shall be required prior to the commencement of any development or redevelopment activities. C. Compliance No land, structure or use shall hereafter be located, extended, converted or structurally altered without full compliance with the terms of this Section and other applicable regulations. D. Abrogation and Greater Restrictions This Section is not intended ...
Flood Elevation Requirements
Franklin's 2026 zoning ordinance requires new or substantially improved homes in AE flood zones to elevate the lowest floor at least three feet above the base flood elevation, one foot more than FEMA's minimum.
Franklin, TN Flood Elevation Freeboard
Some RestrictionsFranklin Zoning Ordinance § 17.6.4.B.1 (2026 ordinance, eff. 1-13-2026)
In AE Zones, where base flood elevation data is available, new construction and substantial improvement of any residential building (or manufactured home) shall have the lowest floor, including basement, elevated to no lower than three feet above the base flood elevation. Should solid foundation perimeter walls be used to elevate a structure, openings sufficient to facilitate equalization of fl...
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