Off-Grid Living in Washington County, Arkansas

I've been digging into Washington County, Arkansas for readers who want to live off-grid, and I'll be upfront: this county is mid-transition on its rules, so treat everything below as a starting point for a phone call, not the final word.

Zoning. Unlike a lot of rural Arkansas counties with no zoning at all, Washington County does zone its unincorporated land. Most of it is Agricultural or Single Family by right, which is good news for off-gridders. Anything outside that (commercial use, unusual living setups, etc.) needs a Conditional Use Permit. The county is also actively adopting a new comprehensive planning ordinance (referenced on the county's own ordinance list as Ord. 2025-044), partly tied to a state law change affecting city jurisdiction outside city limits. I'd call the Planning Office before you buy land to make sure you understand where things stand right now.

Dwellings, tiny homes, RVs. This is genuinely unclear from what I found. The county doesn't license tiny homes or RVs separately, and there's no building permit requirement for single-family homes outside a floodplain (see below). But whether an RV or tiny home counts as a legal permanent residence under the zoning code isn't spelled out anywhere I could confirm. Ask Planning directly before you commit to living in one full-time.

Building permits. Here's the standout local rule: Washington County does not enforce building codes or require permits for agricultural buildings, single-family homes, or residential accessory structures in unincorporated areas. No inspections, no certificate of occupancy unless you ask for one. That's a real exemption from what you'd expect in a lot of other places. It doesn't apply inside incorporated cities like Fayetteville or Springdale, which run their own building departments, and it doesn't override floodplain permitting if you're in a mapped flood zone.

Septic. The county layers its own septic ordinances on top of the state baseline, and it applies to every unincorporated tract regardless of size. You need a permit from the Washington County Health Department before installing any septic system. A soil/perc test also gets triggered if you want a 911 address for your property.

Greywater. I couldn't find a county-specific greywater rule, so this defaults to the Arkansas Department of Health's statewide baseline, which generally wants greywater run through an approved septic/absorption system.

Rainwater. No county restriction found. This appears to follow the state's generally permissive stance on rainwater catchment.

Wells. Well construction standards come from the state, specifically the Arkansas Water Well Construction Commission. Locally, the Health Department's Designated Representatives handle perc testing tied to well and septic work. Worth noting: applying for a 911 address plus utility hookup is treated by the state health department as a marker of "permanent residence," which can pull your property into more formal review.

Off-grid utilities. I didn't find any county ordinance requiring hookup to electric, water, or sewer. But going through the 911-addressing process seems to trigger closer state scrutiny of your septic and water setup. Whether skipping the address application meaningfully reduces that exposure isn't confirmed, it's just my own inference from how the county describes its process, not a strategy I'd bank on.

Bottom line: Washington County is friendlier than average on building codes but has real teeth on septic permitting, and the zoning system is actively changing. Call before you plan.