Can you live off-grid in San Juan County, Colorado?
64
of 100
Major concerns
Possible, but hard and costly. The growing season is only about 57 frost-free days, so plan on cold-hardy crops and a greenhouse. Water is easy here, with about 42 inches of rain a year and wells near 100 feet. The ground is steep, with slopes averaging about 48%. 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
Shallow wells, so drilling should be one of the cheaper costs.
The typical well here is about 100 feet deep; a well typically runs $5,000 to $12,000
Growing season
Very short. A greenhouse makes the difference.
About 57 frost-free days, USDA zone 5a; last frost about June 30, first about August 21
Sun
Strong sun. A modest solar array covers a household.
About 5.6 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 parts 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 48%, about 11,660 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 0.3 miles (OpenStreetMap)
Check a Colorado 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
No statewide residential building code: each county decides whether to adopt one, and some rural counties, such as Saguache, have none. State electrical and plumbing permits and inspections still apply wherever the county does not issue its own.
Rainwater
Allowed with limits. Check the state's rules before you size a tank.
Composting toilets
Allowed.
Water rights
Water belongs to whoever claimed it first. A new well or pond may need a state permit, and a creek may already be claimed.
Drilled to about 100 feet, with pump and pressure tank
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 $8,000
From the nearest road to a house site
Clearing
$1,000 to $4,000
A house site, solar, and garden
Total
$37,000 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.
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.
Zoning
Confirm with the county whether the parcel is zoned.
Rural land in Colorado is often unzoned.
Nearby counties
802 people live in San Juan County, about 2.1 per square mile. It ranks 62nd of the 64 Colorado counties we scored, and Colorado ranks 37th of 50 states.