Can you live off-grid in Madison County, North Carolina?
82
of 100
Good with caveats
Yes, with two things to plan around. Water is easy here, with about 44 inches of rain a year and wells near 90 feet. The ground is steep, with slopes averaging about 31%. That raises the cost of a driveway, septic, and foundation. The U.S. Forest Service rates wildfire risk high in parts of the county, so plan cleared ground around the house.
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 44 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 90 feet deep; a well typically runs $4,000 to $10,000
Growing season
A full season for most vegetables.
About 185 frost-free days, USDA zone 7a; last frost about April 19, first about October 22
Sun
Good sun. Size the array and battery bank for winter.
About 4.9 hours of full sun a day, averaged over the year
Flood
Flood zones run along creeks and rivers here. Look up the parcel on FEMA's flood map.
FEMA maps flood zones within a quarter mile in places
Wildfire
Wildfire risk is high in parts of the county. Check the risk for the parcel you want.
U.S. Forest Service wildfire hazard map: Low to High here
Storms
Hurricanes and strong tornadoes are rare here.
NOAA: no hurricane-strength storm within 50 miles since 1975; about 0.6 strong (EF2 or stronger) tornadoes a decade within 25 miles
Terrain
Steep. A flat house site and a driveway route will drive the cost.
Slopes average about 31%, about 2,150 feet above sea level
Soil
Expect a costlier septic system, because the ground is steep. The county's soil test decides.
Loam, well drained (USDA soil survey). A mound, sand filter, or treatment unit typically runs $10,000 to $20,000
Road
Paved roads are close by.
Nearest paved road usually within about 0.8 miles (OpenStreetMap)
Check a North Carolina 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
Madison County zones land outside its towns and publishes its zoning map. Our free lookup shows the district for any address.
Building code
North Carolina's State Building Code, including the North Carolina Residential Code for houses, applies throughout the state, and every county and city must run or contract for building inspections. A new house needs a building permit from the county or city inspections department.
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 90 feet, with pump and pressure tank
Septic
$10,000 to $20,000
Mound, sand filter, or treatment unit
Solar and batteries
$21,000 to $38,000
Sized for a modest household
Road or driveway
$2,000 to $6,000
From the nearest road to a house site
Clearing
$1,000 to $3,000
A house site, solar, and garden
Total
$38,000 to $77,000
Before the house
Before you make an offer on land here
Soil test
Get a soil test before you count on septic.
Steep ground can rule out a standard system.
Wildfire
Ask an insurance agent whether they will write a policy.
The U.S. Forest Service rates wildfire risk high in parts of the county.
Flood map
Look up the parcel on FEMA's flood map.
Flood zones run along creeks and rivers here. Building in one means flood insurance and extra permits.
Nearby counties
22,071 people live in Madison County, about 49.1 per square mile. It ranks tied for 82nd of the 100 North Carolina counties we scored, and North Carolina ranks 2nd of 50 states.