Yes, with two things to plan around. Water is easy here, with about 50 inches of rain a year and wells near 20 feet. NOAA counts about six strong tornadoes a decade within 25 miles, so a storm shelter belongs in the plan. 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 50 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 $5,000
Growing season
Long enough for a spring and a fall garden.
About 245 frost-free days, USDA zone 8b; last frost about March 13, first about November 14
Sun
Good sun. Size the array and battery bank for winter.
About 5.2 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 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
Strong tornadoes are common. A storm shelter belongs in the plan.
NOAA: no hurricane-strength storm within 50 miles since 1975; about 6 strong (EF2 or stronger) tornadoes a decade within 25 miles
Terrain
Flat to gentle, easy to build on.
Slopes average about 4%, about 250 feet above sea level
Soil
Good ground for a standard septic system. The county's soil test decides.
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 0.5 miles (OpenStreetMap)
Check a Texas parcel, or plan the one you own
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A step-by-step build plan, sizing your solar, water, garden, septic, heat, and buildings.
Is it legal here?
Zoning
None. Texas counties cannot zone rural land, though septic, well, and floodplain rules still apply.
Building code
Texas state law applies the International Residential Code only inside city limits, so a house on unincorporated county land usually has no building code or permit. A county may opt in to require it, checked by an inspector the builder hires, but it cannot require approval before you build or charge a fee.
Rainwater
Collecting it is allowed.
Composting toilets
Allowed.
Water rights
A mix of two systems. Ask the state water office before you drill a well or dam a creek.
Drilled to about 20 feet, with pump and pressure tank
Septic
$5,000 to $10,000
Standard system
Solar and batteries
$20,000 to $35,000
Sized for a modest household
Road or driveway
$2,000 to $7,000
From the nearest road to a house site
Clearing
$1,000 to $3,000
A house site, solar, and garden
Total
$31,000 to $60,000
Before the house
Before you make an offer on land here
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.
Deed rules
Order a title search for deed restrictions.
With no county zoning, deed restrictions and subdivision rules decide what you can build.
Soil test
Get a soil test before you count on septic.
The county has to approve the ground before it issues a septic permit.
Nearby counties
9,571 people live in Marion County, about 25.1 per square mile. It ranks tied for 9th of the 254 Texas counties we scored, and Texas ranks 34th of 50 states.