Off-Grid Living in Benton County, Tennessee

I'll be upfront: Benton County, Tennessee, turned out to be a hard one to pin down. Most of what turns up when you search "Benton County zoning" or "Benton County septic" points to the more heavily-documented Benton Counties in Arkansas, Washington, Oregon, or Michigan. I found Benton County, TN's own government site, but I couldn't pull county-specific ordinances, a zoning map, or a septic program page off it. So a good chunk of this guide leans on Tennessee's state-level baseline rules, with a clear flag on what's confirmed versus what you need to call and check yourself.

Zoning. Tennessee doesn't have a statewide zoning mandate, and plenty of rural counties simply haven't adopted any. Whether Benton County has zoning on unincorporated land, I could not confirm from an official source. Call the county to find out before you assume raw land is unrestricted.

Dwellings, tiny homes, RVs. Tennessee has adopted the 2018 IRC including Appendix Q (the tiny-home-friendly provisions), but counties can opt out or modify. I found nothing Benton County-specific on tiny homes or RV occupancy, so this is one to confirm locally.

Building permits. Some non-official listings suggest Benton County may be an "opt-out" county under the state's residential building code program, meaning permits for single-family homes outside towns like Camden might not be required. I couldn't verify this against an official state or county document, so treat it as a lead, not a fact. The Tennessee State Fire Marshal's Office keeps the official list of opt-out counties.

Septic. This one is state-controlled either way. TDEC's Division of Water Resources runs the statewide septic (on-site sewage) permitting program, and most counties, Benton included as far as I can tell, route through that system rather than running their own health department program. You'll still need a permit to install a septic system; composting toilets as a sole system aren't something I found addressed for Benton County specifically.

Greywater. Tennessee's state plumbing code allows greywater reuse for subsurface irrigation under certain conditions, but I found no Benton County-specific guidance on how strictly that's enforced locally.

Rainwater harvesting. No restrictions found at the state or county level. Tennessee doesn't prohibit collecting rainwater for non-potable use, and I saw nothing from Benton County suggesting otherwise.

Wells. Private wells statewide, Benton County included, must be drilled by a state-licensed well driller under the Tennessee Water Well Act, administered by TDEC. No extra county-level well ordinance surfaced in my research.

Utilities. Going off-grid electrically is generally unrestricted statewide. Any requirement to connect to municipal water or sewer would apply within incorporated towns like Camden or Big Sandy, not the unincorporated county, but I couldn't confirm this directly.

Bottom line: for Benton County, the honest answer on several fronts is "call and ask," and I've named exactly who to call below.