Guide series · 4 guides
The due‑diligence questions that price the deal.
Every guide leads with a cost band you can put in the LOI, a free live check for the parcel you are considering, and the full $99 report when you are past kicking tires.
Free live check on any U.S. address · About 20 seconds · No card needed

The guides
Four risk factors, four cost bands you can price.
Each guide answers a question a broker or lawyer cannot answer without billing hours. Free tool at the top; full report if the parcel is worth the deeper look.
Flood insurance due diligence
FEMA zones, floodway and the share of the lot in an SFHA, and insurance basics for land buyers.
Read the guideRadon cost vs. property value
EPA Zones and mitigation cost for investors buying in high-radon counties.
Read the guideLot subdivision rules by state
Statewide pre-emption (CA/OR/WA) versus local zoning, plus the cost and timeline of a split.
Read the guideLiquefaction risk & soil analysis
USGS ground motion, USDA soils, and the foundation-strategy price ranges.
Read the guideHow to use them
Free check first. Then buy the report.
The free live tool on each guide tells you whether the factor is in scope for this parcel. If it is, the full report gives you the cited record in one file a lender or committee will take at face value.
- 01
Free live check.
Every guide opens with an address bar. It runs the same engine as the paid report, on the free tier.
- 02
The cost band.
Each guide leads with a table you can price the deal against: what each flood zone requires, mitigation cost, foundation ranges, subdivision timelines.
- 03
The full report.
$99, one time, never expires: every deliverable, free re-runs, and change alerts once it is saved to a free account.
Every finding is queried live from its federal source (Census, FEMA, USGS, EPA, USDA, USFS, USFWS) or a named commercial partner. When a source has no data for a parcel, that factor drops out of the score; when a factor's provenance is a regional estimate, it is labeled Estimated.

Start with the guide that matches the risk.
Or type any U.S. address and let the score tell you which factors matter for this parcel.
Free to score · Property Report $99 · All 50 states