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 344 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 helps, but plan on a well for most of your water and on watering the garden in dry months.
About 26 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 344 frost-free days, USDA zone 10a; last frost about January 29, first about December 11
Sun
Strong sun. A modest solar array covers a household.
About 5.5 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 in places
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 50 feet above sea level
Soil
Good ground for a standard septic system. The county's soil test decides.
Clay loam, moderately 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 0.6 miles (OpenStreetMap)
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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 run along creeks and rivers here. Building in one means flood insurance and extra permits.
Deed rules
Order a title search for deed restrictions.
With no county zoning, deed restrictions and subdivision rules decide what you can build.
Nearby counties
426,710 people live in Cameron County, about 478.5 per square mile. It ranks tied for 190th of the 254 Texas counties we scored, and Texas ranks 34th of 50 states.