Can you live off-grid in Alpine County, California?
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Significant challenges
Possible, but the short season will be hard. The growing season is only about 110 frost-free days, so plan on cold-hardy crops and a greenhouse. Wells are shallow here, near 150 feet, which keeps drilling costs down. The U.S. Forest Service rates wildfire risk high across much of the county, so plan cleared ground around the house.
What the land says
Rain
Rain helps, but plan on a well for most of your water and on watering the garden in dry months.
About 28 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 150 feet deep; a well typically runs $9,000 to $20,000
Growing season
Very short. A greenhouse makes the difference.
About 110 frost-free days, USDA zone 7a; last frost about June 10, first about September 29
Sun
Strong sun. A modest solar array covers a household.
About 6.2 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
Wildfire risk is high across much of the county. Plan cleared ground around the house and fire-resistant materials.
U.S. Forest Service wildfire hazard map: Low to Very High 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
Earthquakes
Strong shaking is possible. Build to the seismic code and brace the water tank.
USGS seismic hazard map: very high
Terrain
Steep in places. Driveways, septic, and foundations cost more.
Slopes average about 21%, about 5,790 feet above sea level
Soil
Sandy and fast-draining. Septic may need an extra treatment step, and garden beds need compost to hold water. The county's soil test decides.
Loam, excessively 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 California 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 Alpine County, so call the county planning office with the parcel number to ask whether the land is zoned.
Building code
The California Building Standards Code (Title 24) applies statewide and every city and county must enforce it, so a new house needs a permit however remote. A county may adopt the state's optional rules for owner-built rural homes, which relax some standards but still require a permit.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed with a permit and an approved unit.
Water rights
A mix of two systems. Ask the state water office before you drill a well or dam a creek.
Drilled to about 150 feet, with pump and pressure tank
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$18,000 to $32,000
Sized for a modest household
Road or driveway
$4,000 to $10,000
From the nearest road to a house site
Clearing
$1,000 to $5,000
A house site, solar, and garden
Total
$36,000 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.
Sandy ground drains fast, and some counties require an extra treatment step.
Wildfire
Ask an insurance agent whether they will write a policy.
The U.S. Forest Service rates wildfire risk high across much of the county.
Zoning
Call the county planning office with the parcel number.
There is no public zoning map, so we cannot tell whether the land is zoned.
Nearby counties
1,141 people live in Alpine County, about 1.5 per square mile. It ranks tied for 6th of the 58 California counties we scored, and California ranks 45th of 50 states.