Unincorporated Grant County, Arkansas requires a county floodplain development permit for construction and other development in floodplain areas, but we could not confirm a general residential building permit elsewhere1. Zoning: we could not confirm a countywide zoning ordinance for unincorporated land, and cities such as Sheridan may set their own2. Septic permits for every address, city or not, come from the Arkansas Department of Health or its authorized agent, not the county34.
At a glance
- Building permit
- Required for construction and other development in floodplain areas; general permits elsewhere are unconfirmed1
- Building code
- The 2021 Arkansas Fire Prevention Code includes statewide building and residential codes5
- Zoning
- Listed as no countywide zoning, but current official materials do not expressly confirm that conclusion2
- Septic permits
- Construction and operating permits come from the Arkansas Department of Health or its authorized agent34
- Floodplain development
- County permit required before work in a FEMA-designated Special Flood Hazard Area6
- Owner-builder
- Licensing exemption for an owner building one residence in a calendar year; other rules still apply7
- RV or tiny home
- Single-site occupancy is unconfirmed; qualifying paid parks with three or more spaces are state-regulated89
- Well work
- Use a licensed Arkansas well contractor; no separate owner-applied private-well permit was confirmed10
Who to call
Septic permits
Arkansas Department of Health Grant County Health Unit
Local contact for Arkansas Department of Health services; the statewide Onsite Wastewater program works with county Environmental Health Specialists on septic applications and site visits
700 E Center St, Sheridan, AR 72150
Septic permits
Arkansas Department of Health Onsite Wastewater Program
Statewide onsite wastewater policy and permit-application review in cooperation with county Environmental Health Specialists
4815 W. Markham Street, Slot 46, Little Rock, AR 72205
Contact details are copied from each office’s official page and were checked against it on October 9, 2026.
Off-grid gear
Going off-grid in Grant County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
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Do you need a building permit in Grant County, Arkansas?
Grant County requires a permit for construction, repairs, additions, digging, fences, fill and tree removal when the project is in a floodplain; the County Floodplain Administrator issues that permit1. For a project in a FEMA-designated Special Flood Hazard Area, obtain the Floodplain Development Permit before work begins; a Compliance Certificate is required before the development may be used or occupied6. We could not confirm a general residential building-permit requirement outside floodplain areas, so ask the County Judge's Office about the parcel and scope of work before ordering materials. The Arkansas Fire Prevention Code applies statewide and includes building and residential code volumes11. The current state code list identifies the 2021 Arkansas Fire Prevention Code, but that does not establish that Grant County runs a general permit or inspection program5.
Who issues building permits in Grant County, Arkansas?
The County Floodplain Administrator issues permits for construction and other development in Grant County floodplain areas1. We could not confirm a separate general building or inspection office for work outside floodplains, so start with the County Judge's Office for a parcel-specific answer. Septic applications go to the Arkansas Department of Health or its authorized agent, with the Grant County Health Unit serving as the local contact41213. A driveway built or changed on state highway right-of-way requires an Arkansas Department of Transportation permit issued through the District Engineer14. We could not confirm whether Grant County requires a driveway-access permit for county-maintained roads; ask the County Judge's Office before changing an entrance. Inside Sheridan and the county's other cities, the city may add its own building and zoning requirements, but septic permits for every address in Grant County still come from the Arkansas Department of Health, not the city415.
Does Grant County, Arkansas have zoning, and who sets it?
Grant County is listed as having no countywide zoning, but the county's current official ordinance and department pages do not expressly establish that unincorporated Grant County has no zoning2. Ask the County Judge's Office whether a parcel is subject to a county land-development ordinance, and ask the relevant city before relying on the county answer for land inside municipal limits. We could not confirm a county minimum dwelling size, minimum lot size, general building setback, lot-coverage limit or building-height limit for unincorporated land. Subdivision plats are not unrestricted: before an unincorporated-area plat can be recorded, the county court must accept roads for perpetual maintenance and any land dedicated for public purposes16. A nonresidential farm building has a state exemption from specified electrical licensing and code-authority requirements, but that exemption does not erase floodplain, septic, zoning or other approvals17.
How do septic permits work in Grant County, Arkansas?
Before building or installing an onsite wastewater system in Grant County, obtain construction approval and a construction permit from the Arkansas Department of Health or its authorized agent; operation also requires inspection, approval and a separate operating permit34. The Grant County Health Unit is the local contact1213. Review fees are $30 for a structure of 1,500 square feet or less, $45 through 2,000 square feet, $90 through 3,000 square feet, $120 through 4,000 square feet, $150 above 4,000 square feet, and $30 for an alteration, repair or extension18. No mapped county soil is rated free of severe limitations for a conventional drain field, so make the site evaluation an early purchase contingency rather than assuming a standard system will work19. If an available sanitary sewer is within 300 feet of the building's sewer exit and connection does not cross another person's property, connection is required instead of septic20. A tract of 10 acres or larger is exempt from the Arkansas Sewage Disposal Systems Act if the field line sits no closer than 200 feet to the property line, though other state and federal requirements and nuisance rules still apply21. If you plan composting or incinerating toilets, only pre-manufactured units authorized by the Department may be used, and the system stays subject to onsite wastewater permitting22.
Can you live in an RV or tiny home in Grant County?
We could not confirm whether Grant County allows, limits or prohibits living in one RV or tiny home on ordinary private land outside a regulated park; ask the County Judge's Office and the municipality if the parcel lies inside city limits. Arkansas treats a site with three or more paid spaces receiving placement or maintenance services as a regulated mobile-home or recreational-vehicle park23. A regulated RV park is for transient stays, typically by the night or week, and its plans require Arkansas Department of Health approval8. In that setting, a tiny house on wheels is treated as a mobile home when plumbed and inspected under the Arkansas Plumbing Code and as an RV when it is not24. RVs in a regulated park must remain movable and sit at least 15 feet from other RVs and structures25. A manufactured home installed in Arkansas must be anchored under the applicable standard26.
How do you build a home in Grant County, Arkansas, step by step?
- Confirm whether the parcel is unincorporated and ask the County Judge's Office whether permits beyond floodplain approval apply; we could not confirm a general residential permit outside floodplain areas.
- Check flood status before design; construction and other development in a floodplain require a permit from the County Floodplain Administrator1.
- Arrange the septic site evaluation early because no mapped county soil is rated free of severe limits for a conventional drain field19.
- Apply through the Grant County Health Unit for the required septic construction approval and permit, and budget the state review fee for the building size31218.
- Use a licensed Arkansas well contractor if the parcel needs a private well10.
- Obtain ARDOT approval before working on a driveway within state highway right-of-way14.
What should you check before buying land in Grant County?
Make septic feasibility the first contingency because 0% of mapped Grant County soils are rated without severe limits for a conventional drain field19. Check flood status and access next: development in a designated flood hazard area needs county approval, while work on state highway right-of-way needs ARDOT approval614. Confirm whether the deed describes an existing legal parcel or a proposed subdivision because an unincorporated-area plat cannot be recorded until the county court accepts roads and public-purpose dedications16. The land is heavily wooded and mostly gentle, with 86.3% forest cover and 94.7% at a slope of 15% or less, so clearing may matter more than major grading on many parcels2728. The effective property-tax rate is about 0.5%, and the median annual tax bill is about $8402930.
Watch-outs
- A floodplain permit can expire if work does not begin within six months, and a Compliance Certificate is required before the development may be used or occupied6.
- Grant County is listed as having no countywide zoning, but current official materials do not expressly confirm that conclusion; ask the County Judge's Office and any municipality with jurisdiction before relying on an unrestricted-use assumption2.
- No mapped Grant County soil is rated free of severe limits for a conventional septic drain field, so obtain a site evaluation before treating a homesite as buildable19.
- The septic exemption for tracts of 10 acres or more applies only if the field line stays at least 200 feet from the property line, so measure before assuming a large parcel needs no septic permit21.
Sources
- Floodplain | Grant County, AR, quoted and re-checked
- Grant County, AR - Officials & Departments (2026 county census)
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Current Applicable State Codes in Arkansas, quoted and re-checked
- Floodplain | Grant County, AR, quoted and re-checked
- Rules of the Residential Contractors Committee, quoted and re-checked
- 20 CAR § 138-101. Definitions, quoted and re-checked
- 20 CAR § 138-101. Definitions, quoted and re-checked
- Arkansas Water Well Construction Commission Rules (updated 2020), quoted and re-checked
- 2021 Arkansas Fire Prevention Code — Summary Agenda, quoted and re-checked
- Arkansas Department of Health Grant County Health Unit (healthy.arkansas.gov)
- Arkansas Department of Health Onsite Wastewater Program (healthy.arkansas.gov)
- Regulations: Rules for Access Driveways to State Highways (Arkansas statewide rule), quoted and re-checked
- Arkansas Department of Health - Onsite Wastewater (2026 county census)
- Act 277 of the Regular Session, quoted and re-checked
- 17 CAR § 210-602. Construction and exemptions, quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Rules Pertaining to Onsite Wastewater Systems (2024), Section 4.1, quoted and re-checked
- Act 402 and Rules Pertaining to Onsite Wastewater Systems, quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024) (Arkansas statewide rule), quoted and re-checked
- 20 CAR § 138-102. Compliance (Arkansas statewide rule), quoted and re-checked
- 20 CAR § 138-101. Definitions (Arkansas statewide rule), quoted and re-checked
- 20 CAR § 138-101. Definitions, quoted and re-checked
- 20 CAR § 911-504. Anchoring standards for new homes, used homes, quoted and re-checked
- Wooded share of land: Bolthole Index county data
- Share of land at 15% slope or less: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
Written October 9, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.