Bedrock within ~0 cm of the surface
Shallow bedrock means blasting or rock excavation for foundations, utilities, and any septic field — a cost multiplier the listing photos never show. A geotechnical bore confirms depth at the build site. (USDA SSURGO (brockdepmin))
Septic limitation not applied — servicing unknown
USDA rates this soil "Very limited" for septic absorption fields, but OpenStreetMap did not answer, so nothing here establishes whether the lot sits on an established street grid with sewer service. The septic constraint is not applied to the Score. If there is no sewer, it applies in full: a standard septic system likely fails here and an engineered system can cost tens of thousands more. Confirm service with the utility, or re-run when the street read is available. (USDA SSURGO (engstafdcd); OpenStreetMap street density did not answer)
Two or more zoning districts cross this lot
The city's zoning layer puts 2 districts across this parcel. Every dimensional standard on this report — height, setbacks, coverage, lot minimum — applies to a PART of the lot, not to all of it, and which part governs a given building is a question for the planning counter. Nothing here is capped for it; the numbers are simply not lot-wide. (Municipal GIS (zoning polygons intersected with the parcel ring))
Each factor is scored 0–100. Higher means fewer constraints.
| Zoning | 48 | Restrictive | Austin open zoning layer (free) |
| Flood | 86 | Minimal risk | FEMA NFHL |
| Seismic | 90 | Minimal risk | USGS Seismic |
| Soil | 64 | Limited | USDA SSURGO |
| Radon | — | not on record | no data |
| Wildfire | 85 | Minimal risk | USFS WHP |
| Utilities | — | not on record | no data |
| Terrain | 42 | Steep | USGS 3DEP |
| Lot shape | 65 | Irregular | Buildability engine |
Computed from public federal sources by the Buildability Score engine (methodology v3) — deterministic and reproducible, not asserted. Records read October 6, 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.
30.34262, -97.90043 carries a Buildability Score of 64 out of 100 (grade C+). The score is composed from 6 weighted factors — each cited to its federal or jurisdictional source and re-runnable live on this page.
Grade C+ reads as a scored buildability read across zoning, flood, seismic, soil, radon, wildfire, and utility factors. The grade is derived from the numeric score (64/100) on the published Buildability™ scale.
The weakest factor at this address is terrain — scored 42 out of 100, which reads as steep (every factor is scored so that higher means fewer constraints). That's the factor most likely to constrain what a design can carry, and the one to inspect first before committing capital.
Seismic scores 90 out of 100 — minimal risk, and the highest of the 7 factors read for this address. Higher scores mean fewer constraints, not more.
Every factor cites the federal or jurisdictional dataset it came from — FEMA (flood), USGS (seismic), USFS (wildfire), EPA (radon), USDA/NRCS (soil), and the local jurisdiction's own zoning record where available. Sources are queried live and re-run on refresh; the score cannot outrun its data.
When Austin, TX's zoning record is on our roster, the score reads the jurisdiction's own dimensional standards for the district this parcel sits in. When it isn't, the zoning factor drops out rather than being estimated — which is why parcels in un-rostered jurisdictions still return a score, just one that doesn't count zoning.
No. The Buildability Score™ is a preliminary due-diligence read, not an entitlement or permit approval. Governing bodies retain sole authority over binding land-use decisions. The score's role is to make the diligence conversation faster and better-grounded, not to replace it.