Environmental Rules in Sebastian County, AR (2026)
3 county-level rules, plus city-specific rules for 1 city in Sebastian County, Arkansas.
Verified from official government sources
Stormwater Management
Sebastian County requires a floodplain development permit before any grading, filling, dredging, drainage improvement or structure placement inside a mapped special flood hazard area, and every new subdivision, business park or manufactured home park in the unincorporated county must include a drainage plan that cuts its exposure to flood hazards. The Floodplain Administrator can deny a permit if the project would change flooding patterns or erosion rates.
Sebastian County Floodplain Drainage Plan for Subdivisions
Some RestrictionsSebastian County Code of Ordinances § 151.20(Q)-(R)
(Q) All proposals for the development of a residential subdivision, commercial business park or a manufactured home park/subdivision must have public utilities and facilities such as sewer, gas, electrical and water systems located and constructed to minimize or eliminate flood damage. (R) All proposals for the development of a residential subdivision, commercial business park or a manuf...
Flood Zones
Any structural work, fill, grading, drilling, or utility installation in a special flood hazard area in unincorporated Sebastian County needs a floodplain development permit from the Floodplain Administrator before work begins.
Sebastian County Floodplain Development Permit
Significant RestrictionsSebastian County Code of Ordinances § 151.12
A floodplain development permit is required for all structural development, placement of manufactured structures, clearing, grading, mining, drilling, dredging, placement of fill, excavating, watercourse alteration, drainage improvements, roadway or bridge construction, individual water or sewer installations or any other development in a special flood hazard area to ensure conformance with the...
Flood Elevation Requirements
New residential structures in Sebastian County's AE or A1-30 flood zones must have their lowest floor built one foot above the published base flood elevation, certified by a licensed engineer, surveyor, or architect.
Sebastian County Base Flood Elevation Freeboard
Significant RestrictionsSebastian County Code of Ordinances § 151.21(A)(1)(a)
(a) For all new residential structures, the top surface of the lowest floor must have an elevation one foot above the published BFE. This elevation must be documented on an elevation certificate properly completed by a professional engineer, surveyor or architect licensed to practice in the State of Arkansas.
Environmental Rules by City in Sebastian County
1 cities in Sebastian County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
All Sebastian County ordinances
See every category we cover for Sebastian County: parking, noise, fences, fires, animals, pools, and more.
Sebastian County Ordinance Hub →