Unincorporated Clark County, Arkansas does not require a county building permit for an ordinary home and has no county zoning12. Arkansas building codes still apply, including the statewide Fire Prevention Code34. Inside Arkadelphia, municipal zoning applies; septic approval remains with the Arkansas Department of Health56.
At a glance
- Building permit
- Not required for an ordinary home in an unincorporated area; statewide codes still apply13
- Zoning
- No zoning in unincorporated Clark County; Arkadelphia has municipal zoning25
- Septic permits
- Arkansas Department of Health, Onsite Wastewater Program, working with each county's Environmental Health Specialist76
- Owner-builder
- Exempt from Arkansas residential-contractor licensing when building your own residence, capped at one home per calendar year89
- Sewer connection rule
- A septic system is not allowed if a public sewer is available within 300 feet of the building's sewer exit point10
- Tiny home on wheels
- In qualifying paid parks, a tiny house on wheels is a mobile home if plumbed and inspected under the state plumbing code, otherwise an RV11
- Water wells
- State construction rules apply; public and semi-public wells need advance Health Department approval12
- Septic soil difficulty
- Only 2.9% of county soils are free of severe limits for a conventional drain field13
Who to call
Septic permits
Arkansas Department of Health, Onsite Wastewater Program (Environmental Health)
Site evaluations, construction and operation permits, and inspections for onsite wastewater (septic) systems in Clark County
4815 W. Markham Street, Slot 46, Little Rock, AR 72205
Also useful
Office of the Clark County Judge
Chief executive of Clark County government; authorizes county funds, operates the county road system, and administers ordinances enacted by the Quorum Court, including any future building or land-use ordinance
ttucker@clarkcountyarkansas.com
401 Clay Street, Second Floor, Arkadelphia, AR 71923
Roads & driveways
Clark County Road & Sanitation Department
County road maintenance and residential trash/sanitation service; the office to start with for a question about a county road
1501 Hwy 67 S, Arkadelphia, AR 71923
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in Clark 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.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in Clark County, Arkansas?
An ordinary home in unincorporated Clark County does not require a county building permit1. Arkansas building codes remain mandatory statewide minimums even where no building permit or inspections are required3. The state's current-code list identifies the 2021 Arkansas Fire Prevention Code, including fire, building and residential codes4. We could not confirm a county inspection or certificate-of-occupancy program; ask the County Judge about project-specific requirements14. An owner building a personal residence is exempt from residential-contractor licensing unless the owner builds more than 1 residence in a calendar year9. Nonresidential farm buildings have state licensing and electrical-code exemptions, which do not waive other applicable rules15.
Who handles building questions and septic permits in Clark County?
For an unincorporated parcel, start with the Office of the Clark County Judge at 401 Clay Street, Second Floor, Arkadelphia, AR 71923, phone (870) 246-584714. For county-road access, contact the Clark County Road & Sanitation Department at 1501 Hwy 67 S, Arkadelphia, AR 71923, phone (870) 246-760216. Septic applications go through the Arkansas Department of Health's Onsite Wastewater Program and the Environmental Health Specialist assigned to the county health unit; the central office is at 4815 W. Markham Street, Slot 46, Little Rock, AR 72205, phone 501-661-217117. For land inside Arkadelphia, direct zoning and code questions to the city's Building Department18.
Does Clark County have zoning?
Unincorporated Clark County has no county zoning2. Inside Arkadelphia, the city's zoning districts govern uses and development; septic approval still comes from the Arkansas Department of Health or its Authorized Agent56. Rezoning in Arkadelphia requires appearing before the Planning Commission, coordinated through the city's Building Department18. We could not confirm minimum dwelling size, general building setbacks, height or lot-coverage limits for unincorporated Clark County; ask the County Judge before finalizing a site plan14. Wastewater design can also affect lot size: subdivisions using drip dispersal have a half-acre minimum lot under the state onsite-wastewater rule19.
How do septic permits work in Clark County?
Every onsite wastewater system in Clark County needs approval from the Arkansas Department of Health or its Authorized Agent before construction of a building or residence begins176. Obtain a Permit for Construction before work on the system and a Permit for Operation before use2021. Only 2.9% of Clark County soils lack severe limitations for a conventional drain field, so arrange the site evaluation early13. For a new individual well, plan at least 50 feet from the lot line and 100 feet from any onsite wastewater system proposed on the same or adjacent lots22. No construction may begin on a subdivision lot using onsite wastewater until the Department gives final approval to the subdivision submission23. A residence cannot use a holding tank, even part time24. If public sewer is available within 300 feet of the building's sewer exit without crossing another person's property, Arkansas requires connection instead10.
Can you live in an RV or tiny home on your land in Clark County?
Long-term occupancy of one RV or tiny home on private land in unincorporated Clark County remains unconfirmed; ask the County Judge's office before relying on it14. Arkansas regulates a parcel as a mobile-home or recreational-vehicle park when 3 or more spaces are occupied or intended for occupancy and placement or maintenance service is provided for a fee; construction or alteration then needs advance Department of Health approval25. A tiny house on wheels is treated under the same park rules as a mobile home when plumbed and inspected under the 2018 Arkansas Plumbing Code, or as an RV when it is not11. A residence cannot substitute a holding tank for an approved wastewater system24. Off-grid homes in Clark County may use only Health Department-authorized, pre-manufactured composting or incinerating toilets evaluated by an ANSI-approved laboratory under NSF Standard 41; other wastewater still needs approved treatment or disposal, and construction and operation permits remain required26.
Building a home in Clark County: the steps, in order
- Check the parcel's jurisdiction: Arkadelphia has municipal zoning, while septic approval remains with the Arkansas Department of Health56.
- For unincorporated land, ask the County Judge about project-specific requirements and design to statewide building-code minimums143.
- Arrange the septic site evaluation and obtain Health Department approval before building, including the Permit for Construction for the wastewater system620.
- Request a state-highway driveway permit from the district engineer, submit the form and drawings, and wait for issuance before right-of-way work27. For county-road access, ask the Road & Sanitation Department; we could not confirm a county driveway-permit rule16.
- Have the septic installation inspected and obtain the Permit for Operation before use21.
What to check before you buy land in Clark County
For a well in Clark County, statewide construction standards and contractor licensing apply; public and semi-public wells need advance written Health Department approval, while we could not confirm a separate owner permit for an ordinary private domestic well12. State-highway access needs an Arkansas Department of Transportation driveway permit even for private, farm or ranch use; no bond is required for 1 noncommercial driveway28. Commercial access, including a housing subdivision entrance, requires a minimum $1,000 deposit or bond per driveway, refundable upon satisfactory completion29. Temporary access for 120 days or less also needs a permit and a $1,000 deposit or bond, refunded after satisfactory completion and right-of-way restoration30. We could not confirm private floodplain-development requirements in Clark County; ask the County Judge, because the state permit identified applies to state-department projects1431.
Watch-outs
- No confirmed Clark County rule answers minimum dwelling size, setbacks, lot coverage, or single-RV and tiny-home occupancy on unincorporated land; ask the County Judge before finalizing plans14.
- No county building permit does not waive Arkansas's mandatory statewide building-code minimums13.
- Arkadelphia has municipal zoning; the unincorporated Clark County answer does not apply inside the city5.
Sources
- Clark County Arkansas - Official County Government Website (2026 county census)
- Clark County Arkansas - Official County Government Website (2026 county census)
- Home Improvement Specialty New Application – State of Arkansas, quoted and re-checked
- Current Applicable State Codes in Arkansas, quoted and re-checked
- Arkadelphia: Arkadelphia Code § 14.04.03 — Use and area districts (Clark County), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Arkansas Department of Health - Onsite Wastewater (2026 county census)
- Arkansas Residential Contractors Licensing Law and Rules of the Residential Contractors Committee (2026 county census)
- Arkansas Residential Contractors Licensing Law and Rules of the Residential Contractors Committee, quoted and re-checked
- 20 CAR § 131-106. Treatment and disposal of human waste, quoted and re-checked
- 20 CAR § 138-101. Definitions, quoted and re-checked
- Arkansas Water Well Construction Commission Rules, 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
- Office of the Clark County Judge (clarkcountyar.gov)
- 17 CAR § 210-602. Construction and exemptions, quoted and re-checked
- Clark County Road & Sanitation Department (clarkcountyar.gov)
- Arkansas Department of Health, Onsite Wastewater Program (Environmental Health) (healthy.arkansas.gov)
- Business | Arkadelphia, AR, quoted and re-checked
- 14 CAR § 21-405. Subdivisions, quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- 20 CAR § 138-101. Definitions, quoted and re-checked
- Rules Pertaining to Onsite Wastewater Systems (2024), quoted and re-checked
- 27 CAR § 94-102. Instructions for securing an access driveway permit, quoted and re-checked
- codeofarrules.arkansas.gov, quoted and re-checked
- codeofarrules.arkansas.gov, quoted and re-checked
- codeofarrules.arkansas.gov, quoted and re-checked
- 22 CAR § 111-705. Permits, quoted and re-checked
Written October 10, 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.