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Stormwater Management

Buncombe County's Stormwater Management Program was adopted in 2006 to establish minimum requirements for the control of adverse impacts due to stormwater runoff associated with new development in the county.

Proper management of stormwater runoff protects property, lessens stream channel erosion, prevents increased flooding, and provides additional protection for floodplains, wetlands, and other water resources and aquatic ecosystems.

When Are Stormwater Permits Required?

  • Stormwater permits are required for residential development disturbing one acre or more.
  • Commercial activity requires permitting for any property of one acre or larger.
  • All developers must install permanent measures to control the rate of runoff to that which existed prior to development for the 1 Year 24 Hour storm events.

Documents & Forms

View Stormwater Management-related documents, files, forms, and information, plus links to additional online resources.

View All Planning & Development Documents & Forms

Questions / Answers

Contact the stormwater administrator or technician to discuss your individual situation.
If your lot or tract is a lot of record as of September 27, 2006 and the percentage of hard surfaces (roofs, driveways, sidewalks, outbuildings, etc.) compared to total lot size is 15% percent or less your construction does not require a stormwater permit.

If your preliminary development plan was approved by the Buncombe County Planning Board prior to September 27, 2006 or you have a Land Disturbing Permit from the Soil Erosion and Sediment Control office you may have a vested right.

If the overall scope of your development will eventually exceed one acre you must be permitted prior to starting construction.

Yes, the plan must be sealed by a licensed Professional Engineer or Landscape Architect competent in stormwater hydrology and hydraulics.

Yes, a performance surety bond is required to ensure the adequate construction of the proposed stormwater management system.

The performance surety bond is in the amount of 125% percent of the anticipated cost of materials and installation of the stormwater management system.

Typically the homeowners association will have binding responsibility for the annual care, inspection and maintenance of the stormwater system.

If substantial progress has not been made on the site within six (6) months after issuance of the permit the permit becomes void.

Any use of, or operations on, the land by any person in residential, industrial, educational, institutional, or commercial development, highway and road construction and maintenance that results in a change in the natural cover or topography and that may cause or contribute to sedimentation.)

Locate & Contact

Planning & Development - Stormwater Management


Victoria Hoyland
Stormwater Administrator
P: (828) 250-4854
F: (828) 250-6086

Hours of Operation

Monday - Friday
8:00 a.m. to 5:00 p.m.

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