Can you live off-grid in Loudon County, Tennessee?
89
of 100
Good with caveats
Yes, with one thing to plan around. Water is easy here, with about 57 inches of rain a year and wells near 20 feet. The growing season runs about 217 frost-free days. The ground is steep, with slopes averaging about 15%. That raises the cost of a driveway, septic, and foundation.
What the land says
Rain
Rain can supply much of a household's water with a large tank. A garden mostly waters itself in normal years.
About 57 inches a year (PRISM, 1991 to 2020 average)
Wells
Shallow wells, so drilling should be one of the cheaper costs.
The typical well here is about 20 feet deep; a well typically runs $2,000 to $6,000
Growing season
A full season for most vegetables.
About 217 frost-free days, USDA zone 8a; last frost about March 31, first about November 4
Sun
Good sun. Size the array and battery bank for winter.
About 5.0 hours of full sun a day, averaged over the year
Flood
Flood zones are rare here. Still, look up the parcel on FEMA's flood map.
FEMA maps no flood zones nearby
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low to Moderate here
Storms
Strong tornadoes pass through now and then. A safe room is worth pricing.
NOAA: no hurricane-strength storm within 50 miles since 1975; about 3 strong (EF2 or stronger) tornadoes a decade within 25 miles
Earthquakes
Strong shaking is possible. Build to the seismic code and brace the water tank.
USGS seismic hazard map: high
Terrain
Steep in places. Driveways, septic, and foundations cost more.
Slopes average about 15%, about 1,000 feet above sea level
Soil
Good ground for a standard septic system. The county's soil test decides.
Silty clay loam, well drained (USDA soil survey). A standard system typically runs $5,000 to $10,000
Road
Paved roads are close by.
Nearest paved road usually within about 0.4 miles (OpenStreetMap)
Check a Tennessee parcel, or plan the one you own
Get a free 0-100 off-grid score.
A step-by-step build plan, sizing your solar, water, garden, septic, heat, and buildings.
Is it legal here?
Zoning
Rural land here is often unzoned. Confirm with the county before you build.
Building code
Statewide residential code exists but counties and municipalities may opt out, and many have.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed.
Water rights
Owners of land along a creek or lake can make reasonable use of its water.
Drilled to about 20 feet, with pump and pressure tank
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$18,000 to $34,000
Sized for a modest household
Road or driveway
$3,000 to $7,000
From the nearest road to a house site
Clearing
$1,000 to $3,000
A house site, solar, and garden
Total
$29,000 to $60,000
Before the house
Before you make an offer on land here
Zoning
Confirm with the county whether the parcel is zoned.
Rural land in Tennessee is often unzoned.
Soil test
Get a soil test before you count on septic.
The county has to approve the ground before it issues a septic permit.
Road access
Confirm the parcel fronts a public road or has a recorded easement.
Without one, you may not have a legal way in.
Nearby counties
60,591 people live in Loudon County, about 264.3 per square mile. It ranks tied for 58th of the 95 Tennessee counties we scored, and Tennessee ranks 9th of 50 states.