FAQ · East Tennessee first · works nationwide
How we score land in East Tennessee
TerraScore is a first-look habitability and hazard screen. You give us an
address. We return a 0–100 score for the use-case you pick, the reasons
behind it, and links to the official maps. We are based in Johnson City,
Tennessee. Parcel notes are richest in TN, NC, and SC; national layers
run everywhere else.
Screening estimates from public data — not a survey, perc test, title
opinion, well test, radio-engineering study, or investment advice.
How does TerraScore score land in East Tennessee?
We geocode the address, then pull public layers: FEMA flood, USDA soils,
USGS elevation and slope, EPA radon zone, nearby well-chemistry samples,
karst and sinkholes, USGS landslide susceptibility (county share of the
official 90 m model), mapped towers, the DOT BTS transportation
noise map, cell and fiber clues, Superfund/TRI distance, and county
parcel / owner notes where the assessor publishes them. Those numbers
are weighted into one 0–100 composite for homestead, quiet home, ham
site, health-first, solar, or another use-case. Higher is a better /
safer fit.
Why is East Tennessee coverage stronger than other states?
Flood, soils, elevation, radon, noise, and towers are national.
What is thicker here is parcel and owner detail —
Tennessee, North Carolina, and South Carolina county GIS, including
statewide fallbacks in many counties. Big-city parcels can still be
thin. If you are looking outside TN/NC/SC, ask; we add counties when
customers request them.
What does a TerraScore of 81 mean?
81 / 100 is a strong fit for the use-case you selected, not a
grade of the land in the abstract. The same Unicoi ridge can look
excellent as a homestead and poor as a flip. On layer scores, higher
is usually safer: wildfire 0.9 means lower fire concern.
Does TerraScore check flood, radon, and karst in the Appalachian South?
Yes. Flood is the FEMA National Flood Hazard Layer. Radon is the EPA
county zone — not a canister in the basement. Karst uses the USGS
karst compilation plus mapped sinkholes, which matters on East
Tennessee carbonate. Landslide uses the official USGS 90 m
slope-relief model at county scale plus FEMA’s National Risk Index.
Does TerraScore measure road noise and radio towers?
Yes — that is the Total Quiet screen. Acoustic
quiet blends the official BTS 2020 transportation noise map with
distance to mapped highways, rail, and airports. RF/EMI uses mapped
towers, HIFLD high-voltage lines, and FCC-licensed AM/FM/TV. It is
not a decibel meter or an EMI survey. The
ham / RF site use-case flips those weights toward
a quiet noise floor and elevation for antennas.
Is TerraScore a survey, perc test, title opinion, or well test?
No. We assemble public maps and tell you what they say. We do not
replace a surveyor, soil scientist, attorney, inspector, well lab, or
radon test. We also do not list homes for sale or sell anyone’s phone
number. Full citations live on the
data sources page.
How much does TerraScore cost?
One-time PDFs: $15 Snapshot, $25
Standard, $35 Deep dive (every use-case compared),
$55 Deep Diligence. Optional $8
add-ons: well chemistry, Total Quiet / RF+EMI, Superfund/TRI.
Buyer is $39/month (~50 addresses). Pro is
$119/month (~500 addresses, your logo on PDFs).
Who makes TerraScore and how do I contact you?
Diversified Tech Solutions, Johnson City, Tennessee.
[email protected]
· (423) 888-0252.
Score an East Tennessee address — from $15
Also: sample report · llms.txt for assistants