> ## Documentation Index
> Fetch the complete documentation index at: https://docs.propertylayer.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PropertyLayer API

> Nationwide property data. County tax assessor records joined to parcel boundaries, covering ownership, valuations, zoning, taxes, and sale history.

## What is PropertyLayer?

PropertyLayer lists 3,141 available county products across all 50 states and the District of Columbia, containing more than 162 million property records in the September 7, 2026 catalog snapshot. The records come from county assessors, recorder offices, and GIS departments rather than modeled property attributes.

A property record runs to 100+ fields. Ownership, assessed value, sale history, zoning, tax records, land use and boundaries all come from the county. On top of that PropertyLayer joins in USDA Cropland Data Layer, elevation, FEMA flood zones, and contiguous acreage under the same owner.

Where a county's assessment system has been collected, the response also carries the full assessor record: valuation history year by year, every recorded transfer, per-building construction detail, tax bills and exemptions. That record is the property record. [Data fields](https://docs.propertylayer.com/guides/data-fields.md) has the whole dictionary.

## How it works

Start with a geography. Submit a GeoJSON polygon to `POST /properties/area` and you get back every property whose parcel intersects it.

From there, pass the returned `bpd_uuid` values to `POST /properties/query` for the full records. You can also skip the geography step entirely and filter on any queryable field.

For a single property, `GET /properties/point` takes a lat/lng and `GET /properties/address` takes a street address.

## Next steps

> [card] [Quickstart](https://docs.propertylayer.com/quickstart.md)
>
> Make your first API call in minutes

> [card] [Data fields](https://docs.propertylayer.com/guides/data-fields.md)
>
> Full data dictionary, including tax assessor records

> [card] [Coverage](https://docs.propertylayer.com/guides/coverage.md)
>
> Nationwide coverage and sourcing

> [card] [API Reference](https://docs.propertylayer.com/api-reference/introduction.md)
>
> Full endpoint and schema documentation


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