Possible, but hurricanes will be hard. NOAA counts four hurricane-strength storms within 50 miles since 1975, so build to the wind code and plan for long outages. The growing season runs about 323 frost-free days, long enough for a spring and a fall garden. We found no public well records here, so price a test well early.
What the land says
Rain
Rain can supply much of a household's water with a large tank. The sandy soil dries fast, so plan to water the garden.
About 41 inches a year (PRISM, 1991 to 2020 average)
Wells
Well depth is unknown here. Ask the seller for the well log, or price a test well, before you offer.
No well depths in the public records for this area
Growing season
Long enough for a spring and a fall garden.
About 323 frost-free days, USDA zone 9b; last frost about February 8, first about December 10
Sun
Good sun. Size the array and battery bank for winter.
About 5.3 hours of full sun a day, averaged over the year
Flood
Flood zones cover parts of the county. Look up any parcel on FEMA's flood map before you offer.
FEMA maps flood zones in parts of the county
Wildfire
Low wildfire risk.
U.S. Forest Service wildfire hazard map: Very Low to Moderate here
Storms
Expect about two hurricanes within 50 miles over 30 years. Build to the wind code and keep a week of fuel and water.
NOAA: four hurricane-strength storms within 50 miles since 1975; no strong (EF2 or stronger) tornado within 25 miles since 1990
Terrain
Flat to gentle, easy to build on.
Slopes average about 0%, about 10 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.
Sand, moderately well drained (USDA soil survey). A standard system typically runs $5,000 to $10,000
Road
Dirt tracks. Plan to build or maintain your own road.
Nearest road often a dirt track, about 0.8 miles away (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.
Ask the seller for the well log, or look in the state's well records.
We found no public well records for this area.
Flood map
Look up the parcel on FEMA's flood map.
Flood zones cover parts of the county. Building in one means flood insurance and extra permits.
Soil test
Get a soil test before you count on septic.
Sandy ground drains fast, and some counties require an extra treatment step.
Nearby counties
19,696 people live in Calhoun County, about 38.9 per square mile. It ranks tied for 199th of the 254 Texas counties we scored, and Texas ranks 34th of 50 states.