Does this land percolate?

Instant percability scores from satellite data. Click any parcel on the map to find out if it's buildable — before you spend a dollar on a perc test.

Try It Now How It Works

Check any parcel

Click anywhere on the map to get an instant percability score. No forms, no waiting, no field visits.

Click anywhere on the map to analyze  

Analyzing satellite data for this location...

Full Report $15

Detailed PDF with factors & data sources

How It Works

PrePerc analyzes publicly available satellite data to estimate soil percolation potential — no field visit required.

1

Select a parcel

Click any location on the interactive map, or enter an address to find the parcel you're interested in.

2

AI analyzes the data

Our model processes Sentinel-2 satellite imagery — NDVI, NDWI, and surface texture — to estimate soil drainage characteristics.

3

Get your score

Receive an instant percability score (0–100) with a breakdown of factors. Upgrade to unlock the full detailed PDF report.

Understanding Your Score

Three simple bands tell you everything you need to know before commissioning a perc test.

80–100

Green — High Confidence

Likely buildable with a conventional septic system. Strong candidate for a formal perc test.

50–79

Yellow — Moderate

Likely buildable but may require an engineered septic system. Worth a formal test.

0–49

Red — Significant Constraints

High likelihood of perc test failure. Buyer should investigate further before committing.

Pricing

50x cheaper and 1000x faster than a traditional perc test.

Single Report

$15
per parcel, one-time
  • Full percability score (0–100)
  • 6-factor breakdown
  • Printable PDF report
  • No account needed
Try It Free

FAQ

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No. A real perc test is required for permits. PrePerc is a pre-filter — it tells you whether a parcel is worth the time and money to commission a formal test.
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Our model correlates strongly with known perc test results, but it is an algorithmic estimate based on satellite imagery and public datasets — not a replacement for on-site testing.
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We currently cover the entire continental United States via Sentinel-2 satellite imagery. Coverage is expanding to Alaska and Hawaii.
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No. Everything comes from satellite remote sensing and public data. No field visit is required.
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Yes. The Agent/Broker tier includes an embeddable widget. A “PrePerc Verified” badge on your listings answers the #1 buyer question before they call.