SubGrade

See where ground is being broken before it shows up in permits, comps, or news. Satellite-powered construction detection for Pennsylvania.

Radius: 10 mi
Explore full data with filters, table & CSV export →
What is SubGrade?
Construction intelligence from space, updated monthly.
🌍

Satellite-Powered Detection

We compare Sentinel-2 satellite imagery month-over-month to identify land disturbance and new construction activity across Pennsylvania at 10-meter resolution.

Weeks Ahead of Public Records

Ground disturbance shows up in satellite data long before permits are filed, comps are recorded, or projects hit the news. Get the earliest signal.

🎯

Verified with Before/After Imagery

Every detection includes on-demand satellite imagery so you can visually confirm construction activity yourself. No black-box algorithms.

How it works
1

Acquire

Sentinel-2 satellite imagery captured every 5 days at 10m resolution

2

Compare

Automated change detection between baseline and current month

3

Classify

AI scoring filters construction from seasonal noise, clouds, and agriculture

4

Deliver

Results via interactive map, API, or CSV download within days

Pricing
Start detecting construction activity today.
Free Trial
$0

Try the API with no commitment.

  • 100 API calls
  • Public search endpoint
  • Satellite imagery preview
  • Email support

No credit card required