Comment by otherwatersflow
4 days ago
Thanks, that's really nice to hear. Happy to share:
- Listings: RentCast's API (licensed), pulled weekly.
- Parcel boundaries: state and county GIS services where they publish statewide parcels (about 20 states), and Realie (licensed) for the rest.
- Public land: USGS PAD-US 4.1, filtered to fee-owned, open-access land of 50+ acres.
- Elevation: USGS 3DEP point queries. Roads: Census TIGER. Flood: FEMA's National Flood Hazard Layer. Wildfire: Forest Service Wildfire Hazard Potential (2023). ZIP search: Census ZCTA centroids.
The free state parcel services were the biggest hunt: every state publishes differently, and a couple that looked open turned out to be test or internal-use-only endpoints.
Any possibility to include city or county-owned land too?
Not yet. The public-land source (USGS PAD-US) does include county/city land, but most of it is small parks, and I set a 50-acre minimum. County forests and large preserves are a good idea though, I'll look at adding those.