Can you live off-grid in Alleghany County, Virginia?
85
of 100
Good with caveats
Yes, with two things to plan around. Typical well depths here range from 120 feet to 450 feet, so get a local driller's quote. The ground is steep, with slopes averaging about 30%. 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 42 inches a year (PRISM, 1991 to 2020 average)
Wells
Well depth varies a lot here. Get a local driller's quote before you offer.
Typical well depths here range from 120 feet to 450 feet
Growing season
A full season for most vegetables.
About 184 frost-free days, USDA zone 6b; last frost about April 20, first about October 23
Sun
Good sun. Size the array and battery bank for winter.
About 4.7 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 across much of the county
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low to Low here
Storms
Hurricanes and strong tornadoes are rare here.
NOAA: no hurricane-strength storm within 50 miles since 1975; no strong (EF2 or stronger) tornado within 25 miles since 1990
Terrain
Steep. A flat house site and a driveway route will drive the cost.
Slopes average about 30%, about 1,750 feet above sea level
Soil
Expect a costlier septic system, because the ground is steep. The county's soil test decides.
Silt 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 0.5 miles (OpenStreetMap)
Check a Virginia 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
We found no public zoning map for Alleghany County, so call the county planning office with the parcel number to ask whether the land is zoned.
Building code
Virginia's Uniform Statewide Building Code, which uses the International Residential Code for homes, applies in every county and city and replaces local building codes. The local building department enforces it, so a new house needs a building permit and inspections anywhere in the state.
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.
Depends on depth, which varies here. Get a driller's quote.
Septic
$10,000 to $20,000
Mound, sand filter, or treatment unit
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 $4,000
A house site, solar, and garden
Total
$32,000 to $65,000
Before the house, plus the well
Before you make an offer on land here
Well depth
Get a local driller's depth estimate.
Typical well depths here range from 120 feet to 450 feet.
Soil test
Get a soil test before you count on septic.
Steep ground can rule out a standard system.
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
14,595 people live in Alleghany County, about 32.7 per square mile. It ranks tied for 94th of the 119 Virginia counties we scored, and Virginia ranks 1st of 50 states.