Environmental Rules in Nash County, NC (2026)
5 rules for unincorporated Nash County, North Carolina.
Verified from official government sources
Stormwater Management
In unincorporated Nash County, every development must include a drainage system that keeps surface water from unreasonably pooling on site and never dumps it into a sanitary sewer. The Unified Development Ordinance bars developments from flooding downhill neighbors or blocking natural flow from uphill parcels. The Stormwater Administrator enforces the rule with notices of violation and civil citations carrying penalties up to $500 per day.
Stormwater Drainage Rules in Unincorporated Nash County
Some RestrictionsNash County Unified Development Ordinance §§ 12-3.2, 12-3.6.6
12-3.2.Developments Must Drain Properly.(A)All developments shall be provided with a drainage system that is adequate to prevent the undue retention of surface water on the development site. ... (D)All developments shall be constructed and maintained so that adjacent properties are not unreasonably burdened with surface waters as a result of such developments. ... 12-3.6.6.Civil Penalty Amounts...
Erosion Control
Nash County withholds zoning, special use, conditional use and preliminary plat approval for any project whose land-disturbing activity triggers state erosion control review, until the North Carolina Sedimentation Control Commission certifies that an erosion control plan is approved or clearly approvable. The county itself does not review the technical plan; it gatekeeps its own permits on the state's certification.
Erosion and Sedimentation Control in Nash County
Some RestrictionsNash County Unified Development Ordinance § 12-4
(A)No zoning, special use, or conditional use permit may be issued and preliminary plat approval for subdivisions may not be given with respect to any development that would cause land disturbing activity requiring prior approval of an erosion and sedimentation control plan by the NC Sedimentation Control Commission under NCGS 113A-57(4) unless the Commission has certified to the County, either...
Flood Zones
Unincorporated Nash County outright bans artificial obstructions inside any mapped floodway under the Unified Development Ordinance's Flood Hazard Overlay District rules. No manufactured home may ever be placed or relocated in a floodway, and any other permissible encroachment needs an engineer's certification that it will not raise flood levels.
Floodway Development Ban, Nash County
Heavy RestrictionsNash County Unified Development Ordinance § 12-2.2
12-2.2.Artificial Obstructions Within Floodways Prohibited.(A)Located within areas of special flood hazard are areas designated as floodways. The floodway is an extremely hazardous area due to the velocity of floodwaters that carry debris and potential projectiles and has erosion potential.(B)No artificial obstruction may be located within any floodway. ... (D)The following standards shall appl...
Boat Dock Permits
Piers, boat docks, boat houses, boat slips, and bulkheads are accessory structures under Nash County's Unified Development Ordinance and can be built on a waterfront lot even without an existing house, as long as the structure serves the property owner. No water or sewer hookup is allowed for the dock unless a principal building already sits on the same lot.
Boat Dock Rules, Unincorporated Nash County
Light RestrictionsNash County Unified Development Ordinance §§ 9-5.3(B), 9-6.4(B)
Structures including piers, boat docks, boat houses, boat slips and bulkheads shall be permitted on lots without an existing principal building or structure, provided that the structure must be for the use of the owner of the property. No connection to on-site water supply or sewer/septic facilities associated with for these structures shall be permitted without a principal building or structur...
Flood Elevation Requirements
Where base flood elevation data exists, unincorporated Nash County requires new or substantially improved residential and nonresidential buildings in a special flood hazard area to have their lowest floor, including any basement, elevated at least one foot above base flood elevation. Manufactured homes in those areas face the same one-foot elevation requirement.
Flood Elevation & Freeboard, Nash County
Some RestrictionsNash County Unified Development Ordinance § 12-2.4(D)(1)-(2)
12-2.4.Construction Within Areas of Special Flood Hazard Restricted. ... (D)In all areas of special flood hazard where base flood elevation data has been provided, the following specific standards shall apply to any permissible use and any use allowed by variance (in accordance with Section 7-2.2):(1)Residential Construction. New construction or substantial improvement of any residential struct...
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