What the freeways, tanks, and floodplains put around an address.
An inspector checks the house. No one checks what surrounds it. NestCheck reads the public hazard records — flood, traffic, industrial, rail — and names what sits within a few hundred feet of the door, before you sign.
Not your agent’s job. Outside your inspector’s scope. Not what your lender is checking. The check no one in the transaction is paid to run.
Sign in to save evaluations, track multiple addresses, and pick up where you left off.
Every evaluation reads four things about the property you check.
What the air, soil, and groundwater registries record near this property.
What the roads, rails, and grid run past this property.
What the maps, permits, and compliance records already knew.
What the people, the ground, and the data gaps leave behind.
How NestCheck evaluates an address.
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Step 01
Enter an address
Any U.S. residential address. We geocode it through Google Places and lock the coordinates.
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Step 02
Query the data
EPA, FEMA, FHWA, HIFLD, HUD, OSM, and Census ACS. Real datasets with evidence-based thresholds — no language-model summaries.
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Step 03
Read the report
A scored, sourced report on health hazards, walk quality, green space, daily essentials, and transit. Every number traces back to its source.
What NestCheck checks at every property.
| Category | NestCheck | Zillow | Redfin |
|---|---|---|---|
| Gas stations, Superfund sites & toxic emitters EPA UST · SEMS · TRI | — | — | |
| FEMA flood zones National Flood Hazard Layer designation | Partial | Partial | |
| Sidewalks, intersections & walk routes Actual walk times to specific venues | Partial | Partial | |
| Parks, trails & tree canopy Loop potential · shade · amenity quality | — | — | |
| Groceries, coffee & fitness within reach Walk time to best-rated venue per category | — | — | |
| Buses, trains & bike routes Stations · commute times · reachability | Partial | Partial | |
| Roads & traffic noise FHWA HPMS counts · road classification | — | — |
“Partial” means a third-party listing surfaces an indicator (Walk Score, First Street) without evaluating it independently.
Where the health checks pull their data.
Every check traces back to an authoritative source. Click through any finding in your report to see the dataset, the threshold, and the freshness date.
Where NestCheck evaluations run today.
Full evaluation
4 statesAll four signals scored: health, walk quality, green space, daily essentials. Includes school districts and transit.
Health checks only
50 statesFederal datasets — EPA, FEMA, FHWA, HIFLD — cover the entire country. Enter any U.S. address for an environmental hazard report.
Which state should we support next?
Votes shape our priority list. We weight by request density when we plan the next expansion sprint.