Landmines — flags that cap this score
⚑ Soil rated "Very limited" for septic · caps this score at 60
USDA rates this soil "Very limited" for septic absorption fields. If the lot has no sewer service, a standard septic system likely fails here — an engineered system can cost tens of thousands more, and a failed perc test can kill the build. Order the perc test before closing. (USDA SSURGO (engstafdcd))
Score factors & provenance
| Zoning | — | no data |
| Flood | 95 | FEMA NFHL |
| Seismic | 90 | USGS Seismic |
| Soil | 92 | USDA SSURGO |
| Radon | 60 | EPA Radon |
| Wildfire | 85 | USFS WHP |
| Utilities | 87 | OSM Overpass |
| Terrain | 84 | USGS 3DEP |
| Lot shape | 93 | Buildability engine |
Computed live from public federal sources by the Buildability Score engine (current methodology: v2) — deterministic and reproducible, not asserted. Generated September 8, 2026. Data sources · Accuracy
Informational only — not a permit, appraisal, or professional engineering opinion. Verify with your local planning department before acting on it. See Terms and data sources.
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