Off-Grid Living in Loudon County, Tennessee

If you're eyeing raw land in Loudon County, Tennessee for an off-grid setup, the first thing to understand is that this county is not one of the "no zoning" rural counties you may have read about elsewhere in Tennessee. Loudon County actually has a countywide zoning resolution, administered by the Loudon County Regional Planning Commission, and it covers unincorporated areas plus the town of Greenback. The City of Loudon and Philadelphia are carved out and run their own separate planning and codes departments, so which office you deal with depends entirely on exactly where your parcel sits. Districts run from A-1 Agriculture-Forestry and A-2 Rural Residential down to suburban and commercial designations, and what you can put on the land varies by district, so I'd confirm your parcel's zoning before assuming anything.

On dwellings, I could not find a Loudon County document that specifically addresses tiny houses or IRC Appendix Q, or that spells out RV placement rules beyond noting that "RV Parks" fall under Planning & Codes' permitting menu. That's a gap worth calling in about directly rather than guessing.

Building permits are a real requirement here, not an opt-out situation. Loudon County has adopted and actively enforces the International Building, Plumbing, Mechanical, and Residential Codes (2012 editions), with county inspectors certified by both the state and ICC. Expect inspections at footings, framing, plumbing, mechanical, energy, and final stages. Electrical inspections are handled by state inspectors working through your utility provider, which is standard in Tennessee.

Septic is entirely a state matter here, since Loudon County doesn't run its own septic office. The Tennessee Department of Environment and Conservation (TDEC) Division of Water Resources handles septic permitting, and as of a few years back their staff went fully mobile with no fixed office hours, so the Knoxville Field Office is your point of contact. There's no county-level exemption for composting toilets or dry cabins that I found, so the state's septic permit requirement stands.

Greywater and rainwater harvesting both fall back to the state baseline since I found no county-specific ordinances. Rainwater collection appears unrestricted. Greywater is technically permitted under subsurface irrigation limits at the state level, but enforcement is inconsistent, so check with Planning & Codes and TDEC before building a system.

Wells are governed by the state's Water Well Act and licensed drillers; there's no dedicated county well authority, just a patchwork of local utility boards like Loudon Utilities, LCUB, and the Tellico Area Services System (TASS), which is jointly owned by Loudon and Monroe Counties. Living disconnected from utilities generally seems workable, since I didn't find a mandatory-connection ordinance at the county level, but individual utility service areas may have their own rules worth checking.