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Foundation Guardian maintains the largest database of ground stability scores for US residential and commercial real estate — powered by 10+ years of ESA Sentinel-1 satellite data. Access our data through instant reports, ongoing monitoring, or enterprise API integration.
Real European Space Agency satellite radar analysis of Houston, Texas. Foundation Guardian analyzes ground conditions for any property address in the United States.
HOW YOU ACCESS OUR DATA
HOW YOU ACCESS OUR DATA
1. Submit a property address
You provide the GPS coordinates or street address of any US property. Our system locates it in our satellite archive.
2. We query our ground stability database
Foundation Guardian's database contains ground deformation measurements for properties across the United States, sourced from 10+ years of ESA Sentinel-1 satellite radar imagery. We retrieve the relevant data for your location.
3. We generate your Stability Score
Our proprietary scoring algorithm analyzes ground velocity, displacement trends, and measurement consistency to produce a Stability Score from 0 to 100.
4. You receive your data report
Within 48 hours, your Structural Stability Report is delivered by email — including your score, a ground displacement map, a 10-year movement chart, and plain-English recommendations.
OUR DATASET
OUR DATASET
Foundation Guardian's ground stability database is built on the ESA Sentinel-1 SAR archive — the world's most comprehensive publicly available synthetic aperture radar dataset, with global coverage dating back to October 2014.
Every property analysis we perform is stored permanently in our database, building a proprietary record of ground deformation history for US real estate that grows with every report delivered.
DATA SPECIFICATIONS
Satellite: ESA Sentinel-1 A/C (C-band SAR)
Coverage: Continental United States
Archive depth: October 2014 to present
Revisit frequency: Every 6–12 days
Measurement precision: ±2–3mm vertical displacement
Output: LOS deformation velocity (mm/year)
Processing: DInSAR + MintPy time-series analysis
Scoring: Proprietary Foundation Guardian algorithm
WHO USES OUR DATA
WHO USES OUR DATA
Home Buyers & Real Estate Agents
Access 10 years of satellite ground movement data for any property before closing. Our Stability Score gives buyers objective, satellite-verified risk data that no inspector can provide.
Historic Preservation & Property Managers
Protect irreplaceable structures with continuous ground monitoring. Our database updates every 12 days as new Sentinel-1 data arrives — alerting you the moment deformation patterns change.
Insurance & PropTech Platforms
Embed parcel-level ground stability data into your underwriting models, risk platforms, or property listings via our API. Replace ZIP-code heuristics with satellite-measured ground truth — for any US address, at scale.
DATA ACCESS PRICING
DATA ACCESS PRICING
Single Property Report — $149
One-time access to our ground stability data for a
single property address. Includes Stability Score,
10-year displacement history, deformation map,
and recommendations. Delivered within 48 hours.
Continuous Monitoring — from $299/month
Ongoing data access for one property. Our system
queries new Sentinel-1 data every 12 days and
alerts you when ground movement patterns change.
Enterprise Data API — custom pricing
Bulk data access for insurance carriers, lenders,
and PropTech platforms. Submit thousands of addresses
and receive Stability Scores and displacement
time-series via JSON API. White-label available.
Contact us: info@foundationguardian.com
FREQUENTLY ASKED QUESTIONS
FREQUENTLY ASKED QUESTIONS
What is this technology?
We use satellite radar data from the European Space Agency to measure ground movement. It's the same type of technology used by NASA and the U.S. Geological Survey to monitor land subsidence.
How accurate is it?
Our analysis detects ground movement down to a few millimeters. We're transparent about limitations — heavily wooded or sandy sites can reduce accuracy, and we disclose this in every report.
What's included in the report?
A Stability Score from 0 to 100, a risk classification, a satellite deformation map of your property, a 10-year movement history, and clear plain-English recommendations.
How long does it take?
Reports are delivered within 48 hours of your order.
What areas do you cover?
Any property address in the United States. Our satellite data archive goes back to 2014.
Does this replace a home inspection?
No — it complements it. An inspector evaluates what's visible today. We show you what the ground has been doing for the last decade, which an inspection cannot reveal.
Foundation Guardian — Ground Stability Data for
American Real Estate.
Patent Pending (App. No. 64/069,347)
Powered by ESA Sentinel-1
API available for enterprise
Foundation Guardian provides ground analysis based on satellite data and does not replace professional engineering, geotechnical, or inspection services.
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