Off-Grid Living in Carroll County, Tennessee

I'll be straight with you: Carroll County, Tennessee is one of those places where my usual research process hits a wall. There's no public-facing planning/zoning department website, no building department portal, and no health department page specific to the county that I could find. That's not unusual for smaller rural Tennessee counties, but it means a lot of what I can tell you here is the state baseline, with clear flags on what you need to confirm locally before you act.

Zoning. Tennessee treats zoning as a local function, and the state's own municipal technical guidance says planning commissions (usually city-level) certify zoning ordinances and maps to their governing body. I could not find a Carroll County zoning ordinance or code host, which suggests unincorporated parts of the county may be unzoned, or zoned only inside specific towns. You need to call the county directly to find out which applies to your parcel.

Dwellings, tiny homes, RVs. No county-specific ordinance surfaced. Tennessee has adopted the 2018 IRC with Appendix Q (the tiny-home provisions) as a state default, but counties can opt out or add their own rules on minimum size or RV occupancy. Nothing suggests Carroll County has done so, but that's an absence of evidence, not confirmation.

Building permits. This is genuinely murky. Tennessee runs a State Residential Building Code Enforcement Program (SRBP) through the State Fire Marshal's Office (SFMO) for one- and two-family homes in areas that haven't opted out or exempted themselves. A county can vote itself out of that program by a two-thirds vote of its legislative body. Whether Carroll County is in, out, or running its own local code enforcement isn't confirmed here. The SFMO's jurisdiction list is the place to check.

Septic systems. Septic permitting in Tennessee is a state program under TDEC, governed by state law (Title 68, Chapter 221, Part 4). Anyone installing or repairing a system needs a Septic System Construction Permit. Whether TDEC handles this directly for Carroll County or routes through a local health department wasn't confirmed, so call TDEC or the county to find the right office.

Greywater and rainwater. No Carroll County-specific rules turned up for either. Rainwater harvesting isn't restricted under Tennessee law. Greywater reuse follows the state plumbing code baseline; check with a local authority before installing a system.

Wells. No county-specific ordinance. Wells statewide must be drilled by a licensed driller under Tennessee's Water Well Act.

Off-grid utilities. Disconnecting from electricity isn't restricted by the state. Whether you're required to hook into municipal water or sewer would depend on whichever utility serves your specific parcel, not a countywide rule, since none was found.

Bottom line: Carroll County looks thin on published local rules, which cuts both ways. It might mean fewer hoops, but it also means nobody's put the answers online, so a phone call to the county before you buy land or start building will save you real headaches.