Off-Grid Living in Grundy County, Tennessee

I'll be upfront: Grundy County, Tennessee, is one of the harder places for me to research because I couldn't find an official county planning, building, or health department website. What I found instead was a mix of commercial aggregator sites (which I won't cite as authority) and some very useful state-level sources, plus a notable Tennessee Supreme Court ruling that actually tells us something important about zoning here.

Zoning: This is the interesting one. The Tennessee Supreme Court recently ruled that a Grundy County resolution regulating quarry locations was effectively a zoning ordinance enacted without following the state's County Zoning Act (CZA), meaning it lacked things like a public hearing and planning commission review. The upshot: as of that ruling, Grundy County does not have a valid, comprehensive zoning ordinance covering unincorporated land. If you're looking at raw land outside town limits, you're likely not facing county zoning restrictions right now, though that could change if the county redoes things properly. Incorporated towns inside the county (Altamont, Tracy City, Monteagle) may have their own separate zoning, so always check the specific town if your land is near one.

Dwellings, tiny homes, RVs, and building codes: I could not confirm any Grundy County-specific ordinance here. The relevant state mechanism is run by the Tennessee State Fire Marshal's Office, which maintains the authoritative list of which counties have opted into or out of the state's residential building code enforcement program. I'd call them directly to find out where Grundy County currently stands, since I couldn't verify it independently.

Septic and composting toilets: This is state-governed territory. TDEC's Division of Water Resources administers subsurface sewage disposal permits under Tennessee Code Title 68, Chapter 221. No county-specific exemption or composting-toilet allowance was confirmed, so assume the state's standard permitting and NSF 41 requirements apply.

Greywater: No Grundy County guidance turned up. Fall back on the general state plumbing code framework, which allows subsurface irrigation or holding-tank approaches, but confirm details with TDEC or a licensed installer.

Rainwater harvesting: Nothing suggests any restriction here; Tennessee generally allows rainwater collection for non-potable use, and I found no county rule against it.

Wells: Governed by the Tennessee Water Well Act at the state level. Wells must be drilled by a state-licensed driller. No extra Grundy County permitting requirement showed up in my research.

Utility disconnection: Going off-grid electrically is unrestricted statewide, and I found no Grundy County ordinance mandating hookup to water or sewer. That said, if you're inside an incorporated town limit, that town may have its own utility connection rules I wasn't able to verify.

Bottom line: much of what governs off-grid life in Grundy County right now comes from the state, not the county, because I simply couldn't locate confirmed county-level rules on several fronts. Call the county mayor's office to get pointed to the right department before you commit to a plan.